Updated on 2025/06/07
【Papers】 Mobile Sink-Based Adaptive Immune Energy-Efficient Clustering Protocol for Improving the Lifetime and Stability Period of Wireless Sensor Networks 2015.8
【Papers】 A Low Complexity Antenna Switching for Joint Wireless Information and Energy Transfer in MIMO Relay Channels 2014.5
【Papers】 RF Energy Transfer for Cooperative Networks: Data Relaying or Energy Harvesting? 2012.11
博士(工学) ( 1993.3 長岡技術科学大学 )
工学修士 ( 1989.3 長岡技術科学大学 )
工学士 ( 1987.3 長岡技術科学大学 )
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Communication and network engineering
Niigata University Faculty of Engineering Department of Engineering Professor
2017.4
Niigata University Graduate School of Science and Technology Electrical and Information Engineering Professor
2010.4
Niigata University Faculty of Engineering Department of Electrical and Electronic Engineering Professor
2009.2 - 2017.3
National Institute of Information and Communications Technology Expert Researcher
2003.1 - 2006.3
Niigata University Faculty of Engineering Department of Electrical and Electronic Engineering Associate Professor
1999.1 - 2009.1
Niigata University Faculty of Engineering Lecturer
1995.6 - 1998.12
Niigata University Faculty of Engineering Assistant
1992.4 - 1995.5
Niigata University Faculty of Engineering Department of Engineering Professor
2017.4
Niigata University Graduate School of Science and Technology Electrical and Information Engineering Professor
2010.4
Niigata University Faculty of Engineering Department of Electrical and Electronic Engineering Professor
2009.2 - 2017.3
Niigata University Faculty of Engineering Department of Electrical and Electronic Engineering Associate Professor
1999.1 - 2009.1
Niigata University Faculty of Engineering Lecturer
1995.6 - 1998.12
Niigata University Faculty of Engineering Research Assistant
1992.4 - 1995.5
Nagaoka University of Technology Graduate School of Engineering Information Science and Control Engineering Program
1989.4 - 1992.3
Country： Japan
Nagaoka University of Technology Graduate School of Engineering 電気電子システム工学専攻
1987.4 - 1989.3
Country： Japan
Nagaoka University of Technology Faculty of Engineering 電子機器工学課程
1985.4 - 1987.3
Country： Japan
Nara National College of Technology Department of Electrical Engineering
1980.4 - 1985.3
Country： Japan
The Institute of Electrical and Electronics Engineers, Inc.
The Institute of Electronics, Information and Communication Engineers
電子情報通信学会 スマート無線研究専門委員会 顧問
2023.6
Committee type：Academic society
電子情報通信学会 短距離無線通信研究専門委員会 幹事
2020.6
Committee type：Academic society
電子情報通信学会 スマート無線研究専門委員会 専門委員
2017.6 - 2023.6
Committee type：Academic society
電子情報通信学会 ワイドバンドシステム研究専門委員会 顧問
2014.6
Committee type：Academic society
電子情報通信学会 ヘルスケア・医療情報通信技術研究専門委員会 専門委員
2014.4 - 2021.6
Committee type：Academic society
電子情報通信学会 基礎・境界ソサイエティ 副会長
2013.5 - 2014.6
Committee type：Academic society
電子情報通信学会 短距離無線通信研究専門委員会 専門委員
2013.4 - 2020.6
Committee type：Academic society
The Institute of Electronics, Information and Communication Engineers Chair, Technical Committee on Wideband Systems
2012.5 - 2014.6
Committee type：Academic society
電子情報通信学会 ワイドバンドシステム研究専門委員会 副委員長
2011.5 - 2012.5
Committee type：Academic society
IEEE (The Institute of Electrical and Electronics Engineers, Inc.) Shin-etsu Section, Treasurer
2011.1 - 2012.12
Committee type：Academic society
電子情報通信学会 英文論文誌(EA) 編集委員
2005.5 - 2009.5
Committee type：Academic society
Millimeter-Wave Radio Channel Characterization Using Multi-Dimensional Sub-Grid CLEAN Algorithm Reviewed
Minseok Kim, Tatsuki Iwata, Shigenobu Sasaki, Jun-ichi Takada
IEICE TRANSACTIONS ON COMMUNICATIONS E103B ( 7 ) 767 - 779 2020.7
ARBIC: An Adjustable Range Based Immune hierarchy Clustering protocol supporting mobility of Wireless Sensor Networks Reviewed
Nabil Sabor, Sabah M. Ahmed, Mohammed Abo-Zahhad, Shigenobu Sasaki
Pervasive and Mobile Computing 43 27 - 48 2018.1
A Comprehensive Survey on Hierarchical-Based Routing Protocols for Mobile Wireless Sensor Networks: Review, Taxonomy, and Future Directions Reviewed
Nabil Sabor, Shigenobu Sasaki, Mohammed Abo-Zahhad, Sabah M. Ahmed
WIRELESS COMMUNICATIONS & MOBILE COMPUTING 2017 1 - 23 2017
A Graphical-based educational simulation tool for Wireless Sensor Networks Reviewed
Nabil Sabor, Shigenobu Sasaki, Mohammed Abo-Zahhad, Sabah M. Ahmed
SIMULATION MODELLING PRACTICE AND THEORY 69 55 - 79 2016.12
A centralized immune-Voronoi deployment algorithm for coverage maximization and energy conservation in mobile wireless sensor networks Reviewed
Mohammed Abo-Zahhad, Nabil Sabor, Shigenobu Sasaki, Sabah M. Ahmed
INFORMATION FUSION 30 36 - 51 2016.7
An Unequal Multi-hop Balanced Immune Clustering protocol for wireless sensor networks Reviewed
Nabil Sabor, Mohammed Abo-Zahhad, Shigenobu Sasaki, Sabah M. Ahmed
APPLIED SOFT COMPUTING 43 372 - 389 2016.6
Utilisation of multi-objective immune deployment algorithm for coverage area maximisation with limit mobility in wireless sensors networks Reviewed
Mohammed Abo-Zahhad, Sabah M. Ahmed, Nabil Sabor, Shigenobu Sasaki
IET Wireless Sensor Systems 5 ( 5 ) 250 - 261 2015.10
Mobile Sink-Based Adaptive Immune Energy-Efficient Clustering Protocol for Improving the Lifetime and Stability Period of Wireless Sensor Networks Reviewed
Mohammed Abo-Zahhad, Sabah M. Ahmed, Nabil Sabor, Shigenobu Sasaki
IEEE SENSORS JOURNAL 15 ( 8 ) 4576 - 4586 2015.8
Active spectrum sensing for cognitive radio networks
Bingxuan Zhao, Shigenobu Sasaki
TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES 26 ( 5 ) 789 - 799 2015.5
A Low Complexity Antenna Switching for Joint Wireless Information and Energy Transfer in MIMO Relay Channels Reviewed
Ioannis Krikidis, Shigenobu Sasaki, Stelios Timotheou, Zhiguo Ding
IEEE TRANSACTIONS ON COMMUNICATIONS 62 ( 5 ) 1577 - 1587 2014.5
An Efficient Adaptive Filtering Scheme Based on Combining Multiple Metrics Reviewed
Osamu Toda, Masahiro Yukawa, Shigenobu Sasaki, Hisakazu Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E97A ( 3 ) 800 - 808 2014.3
Magnetic disturbance detection method for ubiquitous device
Kensuke Sawada, Shigenobu Sasaki, Shinichiro Mor
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E96-A ( 12 ) 2745 - 2749 2013
RF Energy Transfer for Cooperative Networks: Data Relaying or Energy Harvesting? Reviewed
Ioannis Krikidis, Stelios Timotheou, Shigenobu Sasaki
IEEE COMMUNICATIONS LETTERS 16 ( 11 ) 1772 - 1775 2012.11
Interference Mitigation Capability of a Low Duty DS-Multiband-UWB System in Realistic Environment Reviewed
Chin-Sean Sum, Shigenobu Sasaki, Hiroshi Harada
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E94A ( 12 ) 2762 - 2772 2011.12
Impact of Chip Duty Factor on DS, TH and DS-TH UWB Systems in Realistic Environment Reviewed
Chin-Sean Sum, Shigenobu Sasaki, Hiroshi Harada
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E93A ( 10 ) 1716 - 1723 2010.10
Error Rate Analysis of Band-Limited BPSK With Nakagami/Nakagami ACI Considering Nonlinear Amplifier and Diversity Reviewed
M. A. Rahman, C. S. Sum, R. Funada, T. Baykas, J. Wang, S. Sasaki, H. Harada, S. Kato
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY 59 ( 3 ) 1523 - 1529 2010.3
Error Probability of MRC in Frequency Selective Nakagami Fading in the Presence of CCI and ACI Reviewed
Mohammad Azizur Rahman, Chin-Sean Sum, Ryuhei Funada, Shigenobu Sasaki, Tuncer Baykas, Junyi Wang, Hiroshi Harada, Shuzo Kato
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E92A ( 11 ) 2679 - 2687 2009.11
Error Analysis of Hybrid DS-Multiband-UWB Multiple Access System in the Presence of Narrowband Interference Reviewed
Chin-Sean Sum, Mohammad Azizur Rahman, Shigenobu Sasaki, Hiroshi Harada, Shuzo Kati
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E92A ( 9 ) 2167 - 2176 2009.9
A Simple Exact Error Rate Analysis for DS-CDMA with Arbitrary Pulse Shape in Flat Nakagami Fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi, Hiroshi Harada, Shuzo Kato
IEICE TRANSACTIONS ON COMMUNICATIONS E92B ( 5 ) 1808 - 1812 2009.5
Exact Error Rate Analysis for Pulsed DS- and Hybrid DS/TH-CDMA in Nakagami Fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi, Hiroshi Harada, Shuzo Kato
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E91A ( 11 ) 3150 - 3162 2008.11
An exact error analysis for low-duty pulsed DS-CDMA systems in flat Nakagami fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
IEEE COMMUNICATIONS LETTERS 11 ( 4 ) 295 - 297 2007.4
Impact of chip duty factor in DS-UWB systems over indoor multipath environment Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E89A ( 11 ) 3152 - 3156 2006.11
Error analysis for ultra-wideband DS- and hybrid DS/TH-CDMA with arbitrary chip-duty Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E89A ( 6 ) 1668 - 1679 2006.6
Impact of timing jitter on DS-UWB and hybrid DS-multiband-UWB systems with rake reception over multipath environment Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E89A ( 6 ) 1657 - 1667 2006.6
Error performance of DS-CDMA over multipath channel using selective rake receiver Reviewed
MA Rahman, S Sasaki, J Zhou, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E88A ( 11 ) 3118 - 3122 2005.11
On Rake reception of Ultra Wideband signals over multipath channels from energy capture perspective Reviewed
MA Rahman, S Sasaki, J Zhou, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E88A ( 9 ) 2339 - 2349 2005.9
Simple-to-evaluate error probabilities for impulse radio UWB multiple access systems with pulse-based polarity randomization Reviewed
MA Rahman, S Sasaki, J Zhou, H Kikuchi
IEEE COMMUNICATIONS LETTERS 9 ( 9 ) 772 - 774 2005.9
Evaluation of selective rake receiver in direct sequence ultra wideband communications Reviewed
MA Rahman, S Sasaki, J Zhou, S Muramatsu, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E87A ( 7 ) 1742 - 1746 2004.7
Online SNR and fading parameter estimation for parallel combinatorial SS systems in Nakagami fading channels Reviewed
K Uenaga, S Sasaki, K Takizawa, J Zhou, S Muramatsu, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E87A ( 6 ) 1495 - 1499 2004.6
Impact of emission constraints on DS-UWB communications with arbitrary chip-duty Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Jie Zhou, Hisakazu Kikuchi
IEICE Electronics Express 1 ( 16 ) 483 - 489 2004
Online SNR estimation for parallel combinatorial SS systems in Nakagami fading channels Reviewed
K Takizawa, S Sasaki, J Zhou, S Muramatsu, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E85A ( 12 ) 2847 - 2858 2002.12
Performance bounds in convolutional coded parallel combinatorial SS systems Reviewed
K Takizawa, S Sasaki, S Muramatsu, J Zhou, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E85A ( 7 ) 1696 - 1701 2002.7
Iterative demodulation and decoding for parallel combinatorial SS systems Reviewed
KI Takizawa, S Sasaki, S Muramatsu, H Kikuchi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E84A ( 12 ) 2991 - 2999 2001.12
MULTIPLE-ACCESS PERFORMANCE OF PARALLEL COMBINATORY SPREAD-SPECTRUM COMMUNICATION-SYSTEMS IN NONFADING AND RAYLEIGH FADING CHANNELS Reviewed
S SASAKI, H KIKUCHI, JK ZHU, G MARUBAYASHI
IEICE TRANSACTIONS ON COMMUNICATIONS E78B ( 8 ) 1152 - 1161 1995.8
Performance of Differential Parallel Combinatory Spread Spectrum Communication Systems Reviewed
Shigenobu Sasaki, Hisakazu Kikuchi, Jinkang Zhu, Gen Marubayashi
Transactions of IEICE vol. J77-B-II, no. 11 ( 11 ) 655 - 664 1994.11
PERFORMANCE OF PARALLEL COMBINATORY SS COMMUNICATION-SYSTEMS IN RAYLEIGH FADING CHANNEL Reviewed
S SASAKI, H KIKUCHI, J ZHU, G MARUBAYASHI
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E77A ( 6 ) 1028 - 1032 1994.6
A Study on Error Control Techniques for Parallel Combinatory Spread Spectrum Communication System Reviewed
Shigenobu Sasaki, Jinkang Zhu, Gen Marubayashi
Transactions of IEICE (A) J76-A巻 3号 ( 3 ) 519 - 527 1993.3
A Study of Mapping and Demodulating Method for Parallel Combinatory Spread Spectrum Communication System Reviewed
Shigenobu Sasaki, Jinkang Zhu, Gen Marubayashi
Transactions of IEICE (A) J75-A巻 4号 ( 3 ) 824 - 830 1992.4
Performance of parallel combinatory SSMA systems Reviewed
Shigenobu Sasaki, Jinkang Zhu, Gen Marubayashi
Proc. of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications 198 - 202 1991.9
Proposal of Parallel Combinatory Spread Spectrum Communication System Reviewed
Jinkang Zhu, Shigenobu Sasaki, Gen Marubayashi
Transactions of IEICE (B-2) vol. J74-B-II, no. 5 ( 5 ) 207 - 214 1991.5
Indoor Channel Characteristics in Atrium Entrance Hall Environment at Millimeter-wave Band Reviewed
Minseok Kim, Tatsuki Iwata, Kento Umeki, Jun-ichi Takada, Shigenobu Sasaki
2017 11TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) 707 - 710 2017
Mm-Wave Outdoor-to-Indoor Channel Measurement In An Open Square Smallcell Scenario Reviewed
Minseok Kim, Tatsuki Iwata, Kento Umeki, Karma Wangchuk, Jun-Ichi Takada, Shigenobu Sasaki
2016 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP) 614 - 615 2016
Simulation Based Mm-Wave Channel Model For Outdoor Open Area Access Scenarios Reviewed
Minseok Kim, Tatsuki Iwata, Kent Umeki, Karma Wangchuk, Jun-ichi Takada, Shigenobu Sasaki
2016 URSI ASIA-PACIFIC RADIO SCIENCE CONFERENCE (URSI AP-RASC) 1292 - 1295 2016
Multi-dimensional TCM/OFDM for the IEEE802.22 WRAN Reviewed
Shigenobu Sasaki, Takuto Uchida, Minseok Kim
The 21st Asia-Pacific Conference on Communications (APCC 2015) 609 - 611 2015.10
Rearrangement of mobile wireless sensor nodes for coverage maximization based on immune node deployment algorithm Reviewed
Mohammed Abo-Zahhad, Sabah M. Ahmed, Nabil Sabor, Shigenobu Sasaki
COMPUTERS & ELECTRICAL ENGINEERING 43 76 - 89 2015.4
Immune Node Deployment Algorithm for Mobile Wireless Sensor Networks with Limited Mobility based on Probabilistic Sensing Model Reviewed
Mohammed Abo-Zahhad, Sabah M. Ahmed, Nabil Sabor, Shigenobu Sasaki
2015 32ND NATIONAL RADIO SCIENCE CONFERENCE (NRSC) 259 - 267 2015
Polarimetric Mm-Wave Channel Measurement and Characterization in a Small Office Reviewed
Minseok Kim, Kento Umeki, Karma Wangchuk, Jun-ichi Takada, Shigenobu Sasaki
2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC) 764 - 768 2015
Coverage Maximization in Mobile Wireless Sensor Networks Utilizing Immune Node Deployment Algorithm Reviewed
Mohammed Abo-Zahhad, Sabah M. Ahmed, Nabil Sabor, Shigenobu Sasaki
2014 IEEE 27TH CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (CCECE) 2014
Simultaneous Wireless Information and Energy Transfer for MIMO Relay Channel with Antenna Switching Reviewed
Ioannis Krikidis, Shigenobu Sasaki, Stelios Timotheou
2014 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) 3800 - 3805 2014
Cooperative Spectrum Sensing using Frequency Domain Correlation Detection Reviewed
Shigenobu Sasaki, Keisuke Kitamura, Bingxuan Zhao
18TH IEEE INTERNATIONAL SYMPOSIUM ON CONSUMER ELECTRONICS (ISCE 2014) 1 - 2 2014
Magnetic Disturbance Detection Method for Ubiquitous Device Reviewed
Kensuke Sawada, Shigenobu Sasaki, Shinichiro Mori
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E96A ( 12 ) 2745 - 2749 2013.12
A Sparsity-Based Design of Regularization Parameter for Adaptive Proximal Forward-Backward Splitting Algorithm Reviewed
Masahiro Yukawa, Yuta Tawara, Shigenobu Sasaki, Isao Yamada
Proceedings of the Tenth International Symposium on Wireless Communication Systems (ISWCS 2013) 1 ( 1 ) 1 - 4 2013.8
Geo-location Assisted Spectrum Sensing for Cognitive Coexistent Heterogeneous Networks Reviewed
Bingxuan Zhao, Shigenobu Sasaki
2013 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (IEEE ICC) 347 - 351 2013
Geo-location-assisted Real Time In-band Spectrum Sensing for Cognitive Radio Networks Reviewed
Bingxuan Zhao, Shigenobu Sasaki
2013 IEEE INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND INFORMATION TECHNOLOGY (IEEE ISSPIT 2013) 204 - 209 2013
TAG We're It (the IEEE 802.24 Smart Grid TAG) Reviewed
Tim Godfrey, Clint Powell, Benjamin Rolfe, Shigenobu Sasaki
2013 IEEE ONLINE CONFERENCE ON GREEN COMMUNICATIONS (ONLINEGREENCOM) 150 - 156 2013
Spectrum Sensing for Cognitive Coexistent Heterogeneous Networks Reviewed
Bingxuan Zhao, Shigenobu Sasaki
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS 2013 1 - 9 2013
Introducing Quiet Period to Wireless LAN Over TV White Space Reviewed
Masumi Yuki, Shigenobu Sasaki
Proc. of THE 15th Int'l Symp. on Wireless Personal Multimedia Communications (WPMC '12) 2012.9
Cooperative Spectrum Sensing in TV White Space - Technologies and Challenges - Invited Reviewed
Shigenobu Sasaki, Bingxuan Zhao
The 9th IEEE-VTS Asia Pacific Wireless Communications Symposium (APWCS) 2012.8
A Study on Terminal mode system using Smart phone and Rear-screen Reviewed
Kensuke Sawada, Yuichi Hanada, Shinichiro Mori, Shigenobu Sasaki
Proc. of International Conference on Mobile Computing and Ubiquitous Networking 2012 (ICMU 2012) 122 - 123 2012.5
A Blind Power Differentiation Scheme for Energy Detection-based Spectrum Sensing Reviewed
Bingxuan Zhao, Shigenobu Sasaki
2012 18TH IEEE INTERNATIONAL CONFERENCE ON NETWORKS (ICON) 320 - 325 2012
Acquisition Performance in DS/UWB Packet Radio Communications Reviewed
Takuya Inoko, Shigenobu Sasaki
Proc. of 26th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2011) 1239 - 1241 2011.6
A hybrid approach for sparse adaptive filters under highly colored inputs
Osamu Toda, Masahiro Yukawa, Shigenobu Sasaki, Hisakazu Kikuchi
APSIPA ASC 2011 - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2011 78 - 82 2011
A Simple Noncoherent Rake Reception in DS-UWB Wireless Communications Reviewed
Shigenobu Sasaki, Yasutomo Kawashima
2009 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ISPACS 2009) 142 - 145 2009
Exact Error Probabilities for MRC in Frequency Selective Nakagami Fading with ISI, CCI and ACI Reviewed
M. A. Rahman, C. S. Sum, S. Sasaki, T. Baykas, J. Wang, R. Funada, H. Harada, S. Kato
2009 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-5 856 - + 2009
Analysis and Comparison of Inter-Symbol/Frame Interference in Pulsed DS- and Hybrid DS/TH-UWB Communications Reviewed
M. A. Rahman, S. Sasaki, S. T. Islam, T. Baykas, C. S. Sum, J. Wang, R. Funada, H. Harada, S. Kato
2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 1614 - + 2009
On Error Probabilities for DS-CDMA/MRC in Frequency Selective Nakagami Fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Junyi Wang, Tuncer Baykas, Chin-Sean Sum, Ryuhei Funada, Hiroshi Harada, Shuzo Kato
2009 IEEE International Conference on Communications Workshops VOLS 1- 2 1 - 6 2009
Luma-based directional copy interpolation for color bilevel AM halftoning for printing. Reviewed
Hisakazu Kikuchi, Akira Iijima, Shogo Muramatsu, Shigenobu Sasaki
IEICE Electronic Express 5 ( 5 ) 170 - 175 2008.3
Non-Coherent Fractionally Spaced Rake Reception in DS-UWB Wireless Communication Systems Reviewed
Yasutomo Kawashima, Shigenobu Sasaki, Hisakazu Kikuchi
2008 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS 2008) 403 - 406 2008
An exact error rate analysis for equal gain combining of DS-CDMA signals in frequency selective Nakagami fading Reviewed
Mohammad Azizur-Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
2008 IEEE 67TH VEHICULAR TECHNOLOGY CONFERENCE-SPRING, VOLS 1-7 1866 - 1870 2008
An exact error rate analysis for equal gain combining of DS-CDMA signals in frequency selective nakagami fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
IEEE Vehicular Technology Conference 1866 - 1870 2008
On the Performance of Pulsed DS- and Hybrid DS/TH-UWB Multiple Access Systems in Frequency Selective Nakagami Fading Reviewed
M. A. Rahman, S. Sasaki, S. T. Islam, M. Asai, H. Kikuchi, H. Harada, S. Kato
2008 IEEE 19TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS 1645 - + 2008
Cognitive interference-mitigation technique for hybrid DS-mbultiband-UWB multiple access system Reviewed
Chin-Sean Sum, Mohammad Azizur Rahman, Shigenobu Sasaki, Hiroshi Harada, Shuzo Kato
2008 IEEE RADIO AND WIRELESS SYMPOSIUM, VOLS 1 AND 2 105 - + 2008
Exact BEP for a multi-antenna impulse radio multi-access system in Nakagami fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
2007 IEEE International Conference on Ultra-Wideband, ICUWB 540 - 544 2007
An exact error analysis for hybrid DS/TH-CDMA in Nakagami fading for UWB communications Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 3041 - 3045 2007
A simple exact bit error analysis for DS-CDMA with arbitrary pulse shape in flat Nakagami fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
2007 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-9 186 - 190 2007
Exact multiple access analysis for pulsed DS-UWB systems with episodic transmission in fiat Nakagami fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
IEEE International Conference on Communications 4110 - 4115 2007
Exact multiple access analysis for pulsed DS-UWB systems with episodic transmission in flat Nakagami fading Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14 4110 - 4115 2007
Impact of Narrowband Interference for DS-multiband-UWB Wireless Communications Reviewed
Yun-Seok Song, Shigenobu Sasaki, Chin Sean Sum, Hisakazu Kikuchi
Proc. of 2006 International Symposium on Information Theory and its Applications 319 - 322 2006.10
On Interference Mitigation of DS-Multiband-UWB System over Indoor Multipath Environment Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2006 International Symposium on Information Theory and its Applications 323 - 326 2006.10
On Frequency Agility of DS-Multiband-UWB System In Interference Mitigation Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2006 International Technical Conference on Circuits/Systems, Computers and Communications 2006.7
Simple method for performance evaluation of DS-CDMA over multipath channels equipped with selective Rake receiver Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Jie Zhou, Hisakazu Kikuchi
Proc. of The First IEEE International Conference on Next-Generation Wireless Systems 236 - 240 2006.1
Error analysis for a hybrid DS-multiband UWB multiple access system over multipath channel Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
2006 IEEE INTERNATIONAL CONFERENCE ON ULTRA-WIDEBAND, VOLS 1 AND 2 219 - + 2006
Multiple access analysis for multiband pulsed UWB systems Reviewed
MA Rahman, S Sasaki, H Kikuchi
2006 IEEE RADIO AND WIRELESS SYMPOSIUM, PROCEEDINGS 503 - 506 2006
Fractionally spaced selective Rake reception for MBOK DS-UWB systems Reviewed
Yasutomo Kawashima, Shigenobu Sasaki, Hisakazu Kikuchi
2006 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1 AND 2 163 - + 2006
The impact of chip duty factor on DS-UWB system over multipath environment in the presence of narrowband interference Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
2006 IEEE INTERNATIONAL CONFERENCE ON ULTRA-WIDEBAND, VOLS 1 AND 2 487 - + 2006
Performance Analysis of M-ary PSK DS-UWB Signal with the Presence of Timing Jitter Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2005 International Workshop on Ultra Wide Band Technologies 159 - 163 2005.12
Simple error analysis for a hybrid DS-multiband UWB multiple access system Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2005 International Workshop on Ultra Wide Band Technologies 169 - 173 2005.12
Performance of simplified selective Rake receiver in DS-UWB wireless communications Reviewed
Yasutomo Kawashima, Mohammad Azizur Rahman, Shigenobu Sasaki, Jie Zhou, Hisakazu Kikuchi
Proc. of 2005 International Technical Conference on Circuits/Systems, Computers and Communications 251 - 252 2005.7
A Study on Indoor Geolocation System using DS-UWB Signals Reviewed
Nobuyuki Takahashi, Shigenobu Sasaki, Jie Zhou, Hisakazu Kikuchi
Proc. of 2005 International Technical Conference on Circuits/Systems, Computers and Communications 247 - 248 2005.7
Performance Analysis of DS-UWB Communication with Presence of Timing Jitter Reviewed
Chin Sean Sum, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2005 International Technical Conference on Circuits/Systems, Computers and Communications 245 - 246 2005.7
On the performance of ultra-wideband DS- and Hybrid DS/TH-CDMA under perfect and imperfect power control Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2005 International Technical Conference on Circuits/Systems, Computers and Communications 249 - 250 2005.7
DS-UWB with an Optional CS-UWB for Low-Rate Wireless Personal Area Networks Reviewed
Huan-Bang Li, Kenichi Takizawa, Shigenobu Sasaki, Tetsushi Ikegami, Ryuji Kohno
2005 IST Mobile & Wireless Communications Summit 2005.6
Impact of timing jitter on carrier-based DS-UWB communications over AWGN and multipath channel Reviewed
CS Sum, S Sasaki, H Kikuchi
2005 13th IEEE International Conference on Networks Jointly held with the 2005 7th IEEE Malaysia International Conference on Communications, Proceedings 1 and 2 1045 - 1050 2005
Bit error probabilities for ultra-wideband DS- and hybrid DS/TH-CDMA with arbitrary chip-duty Reviewed
MA Rahman, S Sasaki, J Zhou, H Kikuchi
2005 INTERNATIONAL CONFERENCE ON WIRELESS NETWORKS, COMMUNICATIONS AND MOBILE COMPUTING, VOLS 1 AND 2 2 1202 - 1207 2005
Impact of timing jitter on rake reception of DS-UWB signal over AWGN and multipath environment Reviewed
CS Sum, MA Rahman, S Sasaki, Z Jie, H Kikuchi
2005 International Conference on Wireless Networks, Communications and Mobile Computing, Vols 1 and 2 1225 - 1230 2005
Error analysis for a hybrid DS/TH impulse radio UWB multiple access system Reviewed
MA Rahman, S Sasaki, J Zhou, H Kikuchi
2005 IEEE International Conference on Ultra-Wideband (ICU) 220 - 224 2005
Impact of Chip Duty-factor in DS-UWB Communications: Some Implications of Regulatory Emission Constraints Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of The 7th International Symposium on Wireless Personal Multimedia Communications vol. 3 233 - 237 2004.9
Approximate Analyses and Comparisons of Generalized Spatial Correlation for Linear and Circular Antenna Arrays Reviewed
Jie Zhou, Kenta Ishizawa, Shigenobu Sasaki, Shogo.Muramatsu, Hisakazu Kikuchi, Yoshikuni Onozato
Proc. of 2004 International Technical Conference on Circuits/Systems, Computers and Communications 7F2P-24-1 - 7F2P-24-4 2004.7
Evaluation of selective RAKE receiver in direct sequence ultra wideband communications in the presence of interference Reviewed
M. A. Rahman, Shigenobu Sasaki, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of 2004 International Workshop on Ultra Wideband Systems Joint with Conference on Ultra Wideband Systems and Technologies. Joint UWBST & IWUWBS 2004 (IEEE Cat. No.04EX812) 221 - 225 2004.5
Evaluation of Generalized Selection Combining RAKE Receiver in Direct Sequence Spread Spectrum Communications with Application to Ultra Wideband (UWB) Technology Reviewed
Mohammad Azizur Rahman, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2004 IEEE International Workshop on Ultra Wide Band Systems joint with Conference on Ultra Wideband Systems and Technologies 221 - 225 2004.5
Generalized spatial correlation equations for antenna arrays in wireless diversity reception: Exact and approximate analyses Reviewed
J Zhou, K Ishizawa, S Sasaki, S Muramatsu, H Kikuchi, Y Onozato
IEICE TRANSACTIONS ON COMMUNICATIONS E87B ( 1 ) 204 - 208 2004.1
Spatial correlation of a circular array antenna and BER performance investigation Reviewed
K Ishizawa, J Zhou, S Sasaki, S Muramatsu, H Kikuchi
PROCEEDINGS OF THE 2004 IEEE ASIA-PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS, VOL 1 AND 2 385 - 388 2004
Performance evaluation of Rake reception of ultra wideband signals over multipath channels from energy capture perspective Reviewed
MA Rahman, S Sasaki, J Zhou, S Muramatsu, H Kikuchi
JOINT UWBST & IWUWBS 2004, CONFERENCE PROCEEDINGS 231 - 235 2004
Cell boundary shifting with power ratio control and tilted antenna arrays in a cellular wireless communications Reviewed
J Zhou, S Sasaki, H Kikuchi, Y Onozato
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E86A ( 10 ) 2607 - 2614 2003.10
Impact of Narrowband Interference and Timing Jitter in DS-UWB System Reviewed
Shigenobu Sasaki, Takumi Kusama, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of The 6th International Symposium on Wireless Personal Multimedia Communications vol.2 274 - 277 2003.10
Performance Analysis of Packet Data Transmission in Aeronautical Communication Systems by DS-CDMA Reviewed
Kenta Ishizawa, Jie Zhou, Shigenobu Sasaki, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of The 6th International Symposium on Wireless Personal Multimedia Communications vol. 3 460 - 464 2003.10
Two-Step Algorithm for Detecting Video Shot Boundaries in a Wavelet Transform Domain Reviewed
Satoshi Hasebe, Shogo Muramatsu, Shigenobu Sasaki, Zhou Jie, Hisakazu Kikuchi
Proc. of 2003 3rd International Symposium on Image and Signal Processing and Analysis (ISPA) 1 245 - 250 2003.9
DWT gain compensation of motion-JPEG2000 for invertible deinterlacer. Reviewed
Takuma Ishida, Shogo Muramatsu, Jie Zhou, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2003 IEEE International Conference on Image Processing (ICIP) 223 - 226 2003.9
Spatial correlation functions for a circular antenna array and their applications in wireless communication systems Reviewed
J Zhou, S Sasaki, S Muramatsu, H Kikuchi, Y Onozato
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E86A ( 7 ) 1716 - 1723 2003.7
Online SNR and Fading Parameter Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels Reviewed
Shigenobu Sasaki, Kazuyuki Uenaga, Kenichi Takizawa, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of 2003 International Technical Conference on Circuits/Systems, Computers and Communications 987 - 990 2003.7
Extra encoding of fine grayscale data into 8-bit sRGB color space Reviewed
H Kikuchi, H Sato, S Hasebe, N Mizutani, S Muramatsu, S Sasaki, J Zhou, S Sekine, Y Abe, Tofukuji, I, M Nakashizuka
OPTICAL ENGINEERING 42 ( 7 ) 1940 - 1948 2003.7
M-ary TH/CSK Modulation for Ultra-wideband Communications Reviewed
Shigenobu Sasaki, Tomohiko Suzuki, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of International Workshop on Ultra-Wideband Systems 2003.6
Performance analysis of a DS-CDMA cellular system with cell splitting into macrocell and microcell architecture Reviewed
J Zhou, S Sasaki, S Muramatsu, H Kikuchi, Y Onozato
IEICE TRANSACTIONS ON COMMUNICATIONS E86B ( 6 ) 1967 - 1977 2003.6
Performance of Online SNR Estimation for Multicode DS/ SS Systems in Multipath Fading Channels Reviewed
Shigenobu Sasaki, Kenichi Takizawa, Kazuyuki Uenaga, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of 2003 World Wireless Congress 2003.5
Quality-Oriented Image Coding Using an Objectiv Measure of PSNR Reviewed
Naoki Mizutani, Hiroto Sato, Shigenobu Sasaki, Shogo Muramatsu, Jie Zhou, Hisakazu Kikuchi
Journal on Signal Processing vol. 7, No. 3 ( 3 ) 229 - 237 2003.5
Optimum Cell Boundary with Power Ratio Control and Tilted Antenna Arrays in a Cellular Wireless Communications Reviewed
Jie Zhou, Shigenobu Sasaki, Hisakazu Kikuchi, Yoshikuni Onozato
Proc. of The Workshop WiOpt03, Modeling and Optimization in Mobile Ad Hoc and Wireless Networks 347 - 348 2003.3
Spatial correlation for a circular antenna array and its applications in wireless communications Reviewed
J Zhou, S Sasaki, S Muramatsu, H Kikuchi, Y Onozato
GLOBECOM'03: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-7 vol. 1 1108 - 1113 2003
Performance analysis of diversity reception schemes with STD in correlated Rayleigh fading channels Reviewed
J Zhou, H Kikuchi, S Sasaki, S Muramatsu, Y Onozato
2003 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOL 1 AND 2, PROCEEDINGS vol. 2 870 - 873 2003
Performance investigation of two transmit diversity schemes with perfect/imperfect channel evaluation in wireless communications Reviewed
J Zhou, H Kikuchi, S Sasaki, S Muramatsu, Y Onozato
IEICE TRANSACTIONS ON COMMUNICATIONS E85B ( 10 ) 1957 - 1965 2002.10
Performance Evaluation of Iterative Demodulation and Decoding for Coded Parallel Combianatorial SS Systems through a Uniform Interleaver Reviewed
Kenichi Takizawa, Shigenobu Sasaki, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of 2002 IEEE International Symposium on Spread Spectrum Techniques and Applications 736 - 740 2002.9
Forward link performance of TDMA/W-CDMA spectrum overlaid system with interference cancellation for future wireless communications Reviewed
J Zhou, H Kikuchi, S Sasaki, S Muramatsu, Y Onozato
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E85A ( 7 ) 1536 - 1545 2002.7
Mapping of Fine Grayscale Data into the sRGB Color Space Reviewed
Hisakazu Kikuchi, Hiroto Sato, Satoshi Hasebe, Naoki Mizutani, Shogo Muramatsu, Shigenobu Sasaki, Jie Zhou, Seishi Sekine, Yoshito Abe, Makoto Nakashizuka
Proc. of 2002 International Technical Conference on Circuits/Systems, Computers and Communications 987 - 990 2002.7
Online SNR Estimation for Turbo Coded Multicode DS/SS Systems Reviewed
Kenichi Takizawa, Shigenobu Sasaki, Jie Zhou, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of 2002 International Technical Conference on Circuits/Systems, Computers and Communications 1316 - 1319 2002.7
Forward Link Capacity of a CDMA Cellular System with Mixed Cell Sizes Reviewed
Hao Zhao, Hisakazu Kikuchi, Jie Zhou, Shigenobu Sasaki, Shogo Muramatsu
Proc. of The 9th IEEE International Conference on Telecommunications 2002.6
Jie Zhou, Jinu Chen, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu
Proc. of 2002 IEEE Wireless Communications and Networking Conference Record, WCNC 2002, Orlando, Florida, USA, March 17-21, 2002 177 - 182 2002.3
Spectrum efficiency of a TDMA/W-CDMA frequency sharing system with notch filters and signal clippers Reviewed
H Kikuchi, J Zhou, S Sasaki, S Muramatsu, Y Onazato
2002 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS AND WEST SINO EXPOSITION PROCEEDINGS, VOLS 1-4 vol. 1 192 - 196 2002
Online SNR estimation for parallel combinatorial SS systems in nakagami fading channels Reviewed
K Takizawa, S Sasaki, H Zhou, S Muramatsu, H Kikuchi
GLOBECOM'02: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3, CONFERENCE RECORDS vol. 2 1239 - 1243 2002
Performance of CDMA cellular system with effects of soft handover under log-normal shadow channels Reviewed
J Zhou, H Kikuchi, S Sasaki, S Muramatsu, Y Onozato
2002 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS AND WEST SINO EXPOSITION PROCEEDINGS, VOLS 1-4 vol. 1 332 - 336 2002
Investigation of a CDMA Cellular System with Various Traffic Distribution, Solved by Combination of Titled Antenna Array and Power Control Reviewed
Jie Zhou, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu, Yoshikuni Onozato
Proc. of IEEE International Conference on ITS Telecommunications 113 - 118 2001.10
Convergence Rate Comparison of a DS-CDMA System with Centralized Power Control by Genetic Algorithms Reviewed
Jie Zhou, Yoshikuni Onozato, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu
Proc. of IEEE International Conference on ITS Telecommunications 119 - 124 2001.10
Separate FEC Coding for Parallel Combinatorial Spread Spectrum Systems Reviewed
Shigenobu Sasaki, Kenichi Takizawa, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of the 12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications vol. 2 F11 - F15 2001.9
Video Querying Based on Three-dimensional Wavelet Transforms Reviewed
Satoshi Hasebe, Shogo Muramatsu, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2001 International Technical Conference on Circuits/Systems, Computers and Communications 1196 - 1199 2001.7
Convolutional Coded Parallel Combinatorial SpreadSpectrum Systems with Iterative Demodulation and Decoding Reviewed
Kenichi Takizawa, Shigenobu Sasaki, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of 2001 International Technical Conference on Circuits/Systems, Computers and Communications 740 - 743 2001.7
Memory Access Estimation in Filter Bank Implementations Reviewed
Naoki Mizutani, Takuma Ishida, Shogo Muramatsu, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. of 2001 International Technical Conference on Circuits/Systems, Computers and Communications 696 - 699 2001.7
On FEC Coding for Parallel Combinatorial Spread Spectrum Systems Reviewed
Shigenobu Sasaki, Shuho Meguro, Kenichi Takizawa, Shogo Muramatsu, Hisakazu Kikuchi
Proc. of The 4th International Symposium on Multi-dimensional Mobile Communications 66 - 73 2001.6
Forward link power control strategy and its optimum issue on CDMA cellular network Reviewed
J Zhou, Y Onozato, S Sasaki, S Muramatsu, H Kikuchi
NINTH IEEE INTERNATIONAL CONFERENCE ON NETWORKS, PROCEEDINGS 498 - 503 2001
Iterative demodulation and decoding for parallel combinatorial SS systems Reviewed
KI Takizawa, S Sasaki, Z Jie, S Muramatsu, H Kikuchi
GLOBECOM '01: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-6 vol. 2 811 - 815 2001
Error Resilience in Image Transmission Using LVQ and Turbo Coding Reviewed
Junhyun Hwang, Sanghyun Joo, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu, Jaeho Shin
Proc. of 2000 International Technical Conference on Circuits/Systems, Computers and Communications vol. 1 478 - 481 2000.7
Use of erasure information in parallel combinatorial spread spectrum systems Reviewed
K Takizawa, S Sasaki, H Kikuchi, G Marubayashi
2000 IEEE 51ST VEHICULAR TECHNOLOGY CONFERENCE, PROCEEDINGS, VOLS 1-3 vol. 3 2280 - 2284 2000
Decoding Scheme for Coded Parallel Combinatorial Spread Spectrum Systems Reviewed
Kenichi Takizawa, Shigenobu Sasaki, Hisakazu Kikuchi, Gen Marubayashi
Proc. of 1999 International Technical Conference on Circuits/Systems, Computers and Communications 273 - 276 1999.7
Zerotree image coding combined with channel coding in random and burst error channels Reviewed
Shigenobu Sasaki, Arata Watanabe, Sanghyun Joo, Hisakazu Kikuchi
Proc. of 1999 International Technical Conference on Circuits/Systems, Computers and Communications 607 - 610 1999.7
Flexible zerotree coding of wavelet coefficients Reviewed
S Joo, H Kikuchi, S Sasaki, J Shin
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E82A ( 6 ) 1117 - 1125 1999.6
Edge enhancement of images by multiresolution vector quantization Reviewed
Yoshito Abe, Hisakazu Kikuchi, Shigenobu Sasaki, Hiromichi Watanabe, Yoshiaki Saitoh
Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi) 82 ( 1 ) 87 - 96 1999
A new image coding technique with low entropy using a flexible zerotree Reviewed
S Joo, H Kikuchi, S Sasaki, J Shin
IEICE TRANSACTIONS ON COMMUNICATIONS E81B ( 12 ) 2528 - 2535 1998.12
Coded Parallel Combinatorial CDMA Systems using Error-and-Erasure Decoding Reviewed
Takashi Kon, Shigenobu Sasaki, Hisakazu Kikuchi, Gen Marubayashi
Proc. of The 3rd International Symposium on Multi-dimensional Mobile Communications 92 - 96 1998.9
Reachability on the Sliding Mode Control of Phase Shifters Reviewed
Kazuya Yokoyama, Hiroyuki Kaizu, Hisakazu Kikuchi, Shigenobu Sasaki, Makoto Nakashizuka
Proc. of 1998 International Technical Conference on Circuits/Systems, Computers and Communications 1643 - 1647 1998.7
A New Image Coding Technique with Low Entropy Reviewed
Sanghyun Joo, Hisakazu Kikuchi, Shigenobu Sasaki, Jaeho Shin
Proc. of International Workshop on Advanced Image Technology 189 - 194 1998.1
Parallel Combinatorial Spread Spectrum Communication Systems with Side Information
Shigenobu Sasaki, Hisakazu Kikuchi, Gen Marubayashi
Proc. of Taiwan-Japan Joint Workshop on the Latest Development of Telecommunication Research 97 ( 471 ) 113 - 118 1998.1
A flexible zerotree coding with low entropy Reviewed
SH Joo, H Kikuchi, S Sasaki, J Shin
PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-6 2685 - 2688 1998
Performance of parallel combinatorial CDMA systems with side information Reviewed
S Sasaki, H Kikuchi, G Marubayashi
1998 IEEE 5TH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS - PROCEEDINGS, VOLS 1-3 369 - 373 1998
A simulation of image transmission: Error control coding combined with wavelet-based image compression Reviewed
S Kohiyama, H Natori, SH Joo, S Sasaki, H Kikuchi
APCCAS '98 - IEEE ASIA-PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS 61 - 64 1998
Differential parallel combinatorial CDMA systems in multipath fading channels Reviewed
S Sasaki, T Kon, H Kikuchi, JK Zhu, G Marubayashi
48TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-3 2373 - 2377 1998
Differential parallel combinatorial CDMA systems in multipath fading channels
Shigenobu Sasaki, Takashi Kon, Hisakazu Kikuchi, Jinkang Zhu, Gen Marubayashi
IEEE Vehicular Technology Conference 3 2373 - 2377 1998
Image Contour Clustering by Vector Quantization on Multiscale Gradient Planes and Its Application to Sketch-based Image Coding Reviewed
Makoto Nakashizuka, Yuji Hiura, Hisakazu Kikuchi, Shigenobu Sasaki
Proc. of IEEE International Workshop on Intelligent Signal Processing and Communication Systems 2012/3/1 - 2012/3/4 1997.11
Multiscale Peak Analysis for ECG Diagnosis and Compression Reviewed
Hisakazu Kikuchi, Makoto Nakashizuka, K. Sugihara, Shigenobu Sasaki, Hideo Makino, Ikuo Ishii, Jaeho Shin
Proc. of 1997 International Technical Conference on Circuits/Systems, Computers and Communications 459 - 462 1997.7
Error rate analysis of coherent and differential multiphase parallel combinatorial spread spectrum systems Reviewed
S Sasaki, H Kikuchi, JK Zhu, G Marubayashi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E80A ( 7 ) 1196 - 1203 1997.7
Parallel Combinatorial Spread Spectrum Communication Systems over Residential Power-line Invited Reviewed
Shigenobu Sasaki, Gen Marubayashi
Proc. of IEEE International Symposium on Power-line Communications and its Applications 89 - 93 1997.4
Quality and spatial scalabilities implemented by using wavelet image coding Reviewed
Yoshito Abe, Hisakazu Kikuchi, Shigenobu Sasaki
Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers 51 ( 11 ) 1889 - 1898 1997
High Definition Picture Coding with Spatial and SNR Scalability Reviewed
Yoshito Abe, Hisakazu Kikuchi, Shigenobu Sasaki
Proc. of 1996 International Symposium on Information Theory and its Applications 794 - 797 1996.9
Multiresolution Hierarchical Coding of High Definition Images Reviewed
Hisakazu Kikuchi, Yoshito Abe, Shigenobu Sasaki, Yoshiaki Saito
Proc. of 1996 International Technical Conference on Circuits/Systems, Computers and Communications 249 - 252 1996.7
Parallel Combinatorial CDMA Systems in Rician Fading Multipath Channels Reviewed
Shigenobu Sasaki, Hisakazu Kikuchi, Jinkang Zhu, Gen Marubayashi
Proc. of The 2nd International Symposium on Multi-dimensional Mobile Communications 690 - 694 1996.7
Edge Enhancement of Images Using Multiresolution Vector Quantization Reviewed
Yoshito Abe, Hisakazu Kikuchi, Shigenobu Sasaki, Hiromichi Watanabe, Yoshiaki Saito
Transactions of IEICE (A) vol. J79-A, No. 5 ( 5 ) 1032 - 1040 1996.5
Performance of differential parallel combinatorial CDMA systems in Rayleigh fading channels Reviewed
S Sasaki, H Kikuchi, JK Zhu, G Marubayashi
IEEE ISSSTA '96 - IEEE FOURTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES & APPLICATIONS, PROCEEDINGS, VOLS 1-3 697 - 701 1996
Performance of differential multiphase parallel combinatory spread spectrum communication systems Reviewed
S Sasaki, H Kikuchi, JK Zhu, G Marubayashi
1996 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOLUMES 1 AND 2 - PROCEEDINGS 591 - 594 1996
CW interference suppression in direct sequence spread spectrum signals using multi-resolution itarative projection Reviewed
Tsuyoshi Hirata, Shigenobu Sasaki, Hisakazu Kikuchi, Hiromichi Watanabe, Gen Marubayashi
Proc. Of 1995 Joint Technical Conference on Circuits/Systems, Computers and Communications 301 - 304 1995.7
Vector quantization of multiresolution joint sub-images Reviewed
Takeshi Nakazawa, Yoshito Abe, Shigenobu Sasaki, Hisakazu Kikuchi
Proc. Of 1995 Joint Technical Conference on Circuits/Systems, Computers and Communications 165 - 168 1995.7
Performance of differential parallel combinatory spread spectrum communication systems Reviewed
Shigenobu Sasaki, Hisakazu Kikuchi, Jinkang Zhu, Gen Marubayashi
Electronics and Communications in Japan (Part I: Communications) 78 ( 10 ) 73 - 84 1995
Multiple access performance of parallel combinatory spread spectrum communication systems in multiple fading channels Reviewed
Shigenobu Sasaki, Hisakazu Kikuchi, Hiromichi Watanabe, Jinkang Zhu, Gen Marubayashi
Proc. of International Workshop on Multi-dimensional Mobile Communications 15 - 18 1994.11
Performance evaluation of parallel combinatory SSMA systems in Rayleigh fading channel Reviewed
Shigenobu Sasaki, Hisakazu Kikuchi, Hiromichi Watanabe, Jinkang Zhu, Gen Marubayashi
Proc. of 1994 IEEE International Symposium on Spread Spectrum Techniques and Applications 198 - 202 1994.7
Performance of the parallel combinatory SS communication system over Rayleigh fading channel Reviewed
Shigenobu Sasaki, Hisakazu Kikuchi, Hiromichi Watanabe, Jinkang Zhu, Gen Marubayashi
Proc. Of 1992 Joint Technical Conference on Circuits/Systems, Computers and Communications 241 - 245 1993.7
スペクトル拡散通信方式の周波数利用効率向上に関する研究
佐々木重信
長岡技術科学大学博士論文 1993.3
Error control technique for parallel combinatory spread spectrum communication system Reviewed
Shigenobu Sasaki, Jinkang Zhu, Gen Marubayashi
Electronics and Communications in Japan (Part III: Fundamental Electronic Science) 76 ( 8 ) 94 - 104 1993
A new error control technique for parallel combinatory spread spectrum communication system Reviewed
Shigenobu Sasaki, Jinkang Zhu, Gen Marubayashi
Proc. Of 1992 International Symposium on Information Theory and Its Applications 740 - 744 1992.11
A wavelet analysis/re-construction processor based on frequency sampling Reviewed
Makoto Nakashizuka, Hisakazu Kikuchi, Shigenobu Sasaki, Hiromichi Watanabe
Proc. Of 1992 Joint Technical Conference on Circuits/Systems, Computers and Communications 725 - 730 1992.7
PERFORMANCE OF THE PARALLEL COMBINATORY SPREAD-SPECTRUM MULTIPLE-ACCESS COMMUNICATION-SYSTEM WITH THE ERROR CONTROL TECHNIQUE Reviewed
S SASAKI, JK ZHU, MARUBAYASHI
ISSSTA '92: IEEE SECOND INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, PROCEEDINGS 159 - 162 1992
スペクトル拡散通信入門
丸林元, 黒木聖司, 太刀川信一, 佐々木重信（ Role： Joint translator）
科学技術出版 2002.4 （ ISBN:4876530580 ）
Wireless Poweredリレー伝送における中継局数の影響について
佐々木 重信
電子情報通信学会技術研究報告 120 13 - 17 2021
Wireless Poweredリレー伝送プロトコルに関する一検討
佐々木 重信
電子情報通信学会技術研究報告 vol. 121, no. 70 39 - 41 2021
マルチユーザ SWIPT MIMO リレー伝送におけるユーザ数の影響
佐々木 重信
電子情報通信学会技術研究報告 vol.119, No.73 1 - 6 2019
金 ミンソク, 岩田 樹, 佐々木 重信, 高田 潤一
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 117 ( 458 ) 65 - 70 2018.2
117 ( 56 ) 13 - 18 2017.5
Impact of Phase Noise in Multidimensional TCM/OFDM Wireless Communications
116 ( 481 ) 7 - 12 2017.3
116 ( 481 ) 159 - 164 2017.3
Development of Channel Sounder at 2.4GHz using Software Radio Peripheral
116 ( 276 ) 47 - 52 2016.10
A Study on Signal Level Estimation for Spectrum Sensing in Cognitive Radio
116 ( 187 ) 1 - 6 2016.8
Investigation of the Mm-Wave Propagation Mechanism in an Outdoor Access Environment
116 ( 142 ) 161 - 166 2016.7
KIM Minseok, 佐々木 重信
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 116 ( 88 ) 3 - 8 2016.6
A study on relay transmission system was introduced the Energy Harvesting
115 ( 474 ) 125 - 129 2016.3
Mm-Wave Channel Model For Outdoor Open Area Access Environments
115 ( 474 ) 35 - 40 2016.3
A study on low-level signal estimation in the spectrum sensing
115 ( 473 ) 121 - 127 2016.3
B-1-42 Identification of Propagation Mechanism in Mm-Wave Outdoor Access Environment
Iwata Tatsuki, Kim Minseok, Umeki Kento, Wangchuk Karma, Takada Jun-ichi, Sasaki Shigenobu
Proceedings of the IEICE General Conference 2016 ( 1 ) 42 - 42 2016.3
115 ( 273 ) 29 - 34 2015.10
Performance of Spectrum Management in Wireless LAN over White Space
115 ( 161 ) 155 - 160 2015.7
Performance of Multidimensional TCM/OFDM in the IEEE 802.22 WRAN
115 ( 85 ) 45 - 50 2015.6
A Study on Spectrum Management for Use of White Space
ISHII Masashi, SASAKI Shigenobu
IEICE technical report. SR, Smart radio 114 ( 491 ) 101 - 108 2015.3
Impact of Interference Node for SWIPT MIMO Relay Transmission
KOIZUMI Masashi, SASAKI Shigenobu, KRIKIDIS Ioannis
IEICE technical report. SR, Smart radio 114 ( 491 ) 45 - 51 2015.3
B-1-10 Phase Noise Calibration Scheme for mm-Wave Channel Sounder
Kim Minseok, Sasaki Shigenobu
Proceedings of the IEICE General Conference 2015 ( 1 ) 10 - 10 2015.2
B-17-5 Performance Comparison of Multidimensional TCM/OFDM for the IEEE 802.22 WRAN
Uchida Takuto, Sasaki Shigenobu
Proceedings of the IEICE General Conference 2015 ( 1 ) 552 - 552 2015.2
Special Section on Wideband Systems FOREWORD
Shigenobu Sasaki
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E98A ( 2 ) 510 - 510 2015.2
Spectrum Management Using Weighted State Transition for Use of TV White Space (Smart Radio)
ISHII Masashi, SASAKI Shigenobu
IEICE technical report. SR, Smart radio 114 ( 284 ) 43 - 49 2014.10
B-19-16 Impact of Phase Offset in Multidimensional TCM/OFDM Communications
UCHIDA Takuto, SASAKI Shigenobu
Proceedings of the Society Conference of IEICE 2014 ( 2 ) 419 - 419 2014.9
Special Section on Wideband Systems FOREWORD
Shigenobu Sasaki
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E97A ( 1 ) 1 - 1 2014.1
Geolocation-based Real Time In-band Spectrum Sensing for Cognitive Networks
ZHAO Bingxuan, SASAKI Shigenobu
IEICE technical report 113 ( 57 ) 49 - 56 2013.5
A Study on Accuracy of Acquisition for DS/UWB Packet Radio Transmission
ITNOKO Takuya, SASAKI Shigenobu
Technical report of IEICE. ISEC 112 ( 461 ) 229 - 234 2013.3
Indoor Pedestrian Positioning Method by Searching Trajectory Shape from Topology Data for Pedestrian
54 ( 1 ) 237 - 248 2013.1
Trends and Challenges of Using “White Space” in Wireless Communications
SASAKI Shigenobu
IEICE ESS Fundamentals Review 6 ( 4 ) 250 - 256 2013
A Variable-Metric NLMS Algorithm for Sparse Systems and Colored Inputs
27 527 - 530 2012.11
A Study on Protocol for Cooperative Spectrum Sensing (2)
112 ( 147 ) 53 - 58 2012.7
Acquisition Performance Analysis of DS/UWB Packet Radio Communication
INOKO Takuya, SASAKI Shigenobu
IEICE technical report. WBS, Wideband System 111 ( 244 ) 19 - 24 2011.10
For Increasing Transmission Rate on IEEE802.22 WRAN
NIWANO Hiromu, SASAKI Shigenobu
IEICE technical report 111 ( 180 ) 87 - 92 2011.8
YUKI Masumi, SASAKI Shigenobu
IEICE technical report 111 ( 159 ) 29 - 34 2011.7
Impact of Adjacent Channel Interference in Low Power Wireless Data Transmission over White Space
KODAMA Kenji, SASAKI Shigenobu
IEICE technical report 110 ( 435 ) 57 - 62 2011.2
コグニティブ無線の標準化動向
村上誉, 佐々木重信, 吉野仁
電子情報通信学会誌 94 ( 1 ) 43 - 46 2011.1
Performance of Combined Coded Modulation and OFDM in Low Power Wireless Communication Systems
OHNO Toshihiro, SASAKI Shigenobu
IEICE technical report 110 ( 251 ) 175 - 180 2010.10
A study on acquisition for DS/UWB packet radio transmission
INOKO Takuya, SASAKI Shigenobu
IEICE technical report 110 ( 144 ) 1 - 5 2010.7
Overview of Standards Development on Cognitive Wireless Systems Operating over TV White Space
SASAKI Shigenobu
IEICE technical report 109 ( 442 ) 1 - 7 2010.2
A Study on Highly Reliable Wireless Communications using DS-UWB
TSUDA Tomohiro, SASAKI Shigenobu
IEICE technical report 109 ( 440 ) 11 - 16 2010.2
A Study on Low Power Wide Area Broadband Wireless Communication System
SASAKI Shigenobu, KODAMA Kenji
IEICE technical report 109 ( 383 ) 33 - 38 2010.1
Interference Mitigation Performance of Wavelet Packet-based DS-UWB
WADA Yasutaka, SASAKI Shigenobu
IEICE technical report 109 ( 324 ) 67 - 72 2009.12
BP-5-2 Overview on Standards Development over TV Whitespace
Sasaki Shigenobu
Proceedings of the Society Conference of IEICE 2009 ( 1 ) "SS - 35" 2009.9
Standardization Activities on Wireless Communication Systems Operating over TV Whitespace in IEEE802
SASAKI Shigenobu
IEICE technical report 109 ( 61 ) 81 - 81 2009.5
A Study on Covariance-based Spectrum Sensing in IEEE802.22 WRAN
INOUE Koichi, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 109 ( 61 ) 57 - 62 2009.5
B-17-8 A Study on Spectrum Sensing based on Feature Detection of DTV Signals over Shadowing Channel
Nishida Jun-ichi, Sasaki Shigenobu
Proceedings of the Society Conference of IEICE 522 - 522 2009
A-5-11 Performance of Non-coherent I/Q Selective Rake Reception in DS-UWB Communications
Kawashima Yasutomo, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 150 150 - 150 2009
A study on Spectrum Sensing based on Energy Detection of DTV Signals in IEEE802.22 WRAN
SHINOZUKA Yasutaka, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 108 ( 250 ) 195 - 200 2008.10
Performance of Multidimensional coded modulation in IEEE 802.22 WRAN
SHIBATA Kazuki, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 108 ( 249 ) 117 - 122 2008.10
A Study on Multilevel Spectrum Sensing of DTV Signals in IEEE802.22 WRAN
SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 108 ( 250 ) 201 - 206 2008.10
Study on interference mitigation scheme for UWB systems using wavelet packets
MUTO Koji, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 108 ( 231 ) 81 - 86 2008.10
A Study on Spectrum Sensing based on Feature Detection of DTV Signals in IEEE802.22 WRAN
NISHIDA Junichi, SASAKI Shigenobu, KIKUCHI Hisakazu
108 ( 172 ) 101 - 107 2008.7
Performances of Non-Coherent Fractionally Spaced Rake Reception in DS-UWB Wireless Communications
KAWASHIMA Yasutomo, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 107 ( 395 ) 25 - 30 2007.12
Possibilities and Challenges of Spectrum-Sharing based Wireless Communications : Through the Trends on Cognitive Radio Standardization in IEEE802.22
SASAKI Shigenobu
Technical report of IEICE. RCS 107 ( 192 ) 31 - 31 2007.8
A Study on Spectrum Sensing of DTV Signals in IEEE802.22 WRAN
SASAKI Shigenobu
IEICE technical report 107 ( 162 ) 103 - 108 2007.7
A Study on Rake Receiver using Bandpass Sampling in DS-UWB Wireless Communications
MUTO Koji, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 107 ( 162 ) 151 - 156 2007.7
IEEE802.22におけるDTVスペクトラムセンシングに関する一検討
佐々木重信
信学技報 SR2007 - 37 2007
Impact of Chip Duty Factor on DS, TH and DS-TH UWB Systems over Multipath and Multi-user Environment
SUM Chin Sean, SASAKI Shigenobu, KIKUCHI Hisakazu
29 ( 1 ) 423 - 426 2006.11
Trends on Standardization Activities in IEEE802.22
SASAKI Shigenobu
IEICE technical report 106 ( 395 ) 127 - 133 2006.11
Performance of Fractionally Spaced Rake Reception in MBOK DS-UWB Communications
MITOMI Takahiko, KAWASHIMA Yasutomo, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 169 ) 7 - 12 2006.7
On Interference Mitigation of DS-Multiband-UWB System over Multipath Environment
SUM Chin Sean, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 169 ) 13 - 18 2006.7
Multiple Access Analysis for a Hybrid DS-Multiband UWB System in Multipath Environment
RAHMAN Mohammad Azizur, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 169 ) 19 - 24 2006.7
Performance of hybrid DS/TH-UWB multiple access system
ASAI Masaru, RAHMAN Mohammad Azizur, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 171 ) 1 - 6 2006.7
Performance of Fractionally Spaced Rake Reception in MBOK DS-UWB Communications
MITOMI Takahiko, KAWASHIMA Yasutomo, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 171 ) 7 - 12 2006.7
On Interference Mitigation of DS-Multiband-UWB System over Multipath Environment
SUM Chin Sean, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 171 ) 13 - 18 2006.7
Performance of hybrid DS/TH-UWB multiple access system
ASAI Masaru, RAHMAN Mohammad Azizur, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 169 ) 1 - 6 2006.7
Performance of Parallel Combinatorial UWB Communication Systems in Multipath Channel
KAGAYA Yoichi, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 106 ( 103 ) 37 - 42 2006.6
A-5-15 Impact of Chip Duty Factor in TH-UWB and DS-TH-UWB Systems over Indoor Multipath Environment
SUM Chin Sean, SASAKI Shigenobu, KIKUCHI Hisakazu
Proceedings of the IEICE General Conference 2006 129 - 129 2006.3
A-5-6 Impact of Narrowband Interference for DS-multiband-UWB Wireless Communications
Song Yun-Seok, Sasaki Shigenobu, Sum Chin Sean, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2006 120 - 120 2006.3
A-5-35 Performance of Selective Rake Reception with Oversampling in DS-UWB Communications
Kawashima Yasutomo, Sasaki Shigenobu, Rahman Mohammad Azizur, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2006 149 - 149 2006.3
SASAKI Shigenobu
IEICE technical report 105 ( 620 ) 27 - 30 2006.3
Impact of quantization at a Rake receiver in DS-UWB systems
KAWASHIMA Yasutomo, RAHMAN Mohammad Azizur, SASAKI Shigenobu, KIKUCHI Hisakazu
IEICE technical report 105 ( 469 ) 43 - 48 2005.12
Impact of Timing Jitter and Narrowband Interference in DS-Multiband UWB Communications
KUSAMA Takumi, SASAKI Shigenobu, ZHOU Jie, KIKUCHI Hisakazu
27 ( 2 ) 551 - 554 2005.12
A study on Rake reception for DS-UWB communications
TERASHIMA Yuhki, SASAKI Shigenobu, RAHMAN Mohammad Azizur, ZHOU Jie, KIKUCHI Hisakazu
IEICE technical report. WBS, Wideband System 105 ( 137 ) 13 - 18 2005.6
A-5-12 The Effects of Timing Jitter on Rake Reception of DS-UWB Signal over Multipath Environment
Sum Chin Sean, Mohammad Azizur Rahman, Sasaki Shigenobu, Zhou Jie, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2005 128 - 128 2005.3
A-5-13 Performance of Selective Rake Reception in DS-UWB Communications
Sasaki Shigenobu, Kawashima Yasutomo, Rahman Mohammad Azizur, Zhou Jie, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2005 129 - 129 2005.3
RAHMAN Mohammad Azizur, SASAKI Shigenobu, ZHOU Jie, KIKUCHI Hisakazu
Technical report of IEICE. RCS 104 ( 678 ) 189 - 194 2005.3
Effects of Power Control on the Performance of Low-duty Ultra Wideband DS- and Hybrid DS/TH-CDMA
RAHMAN Mohammad Azizur, SASAKI Shigenobu, ZHOU Jie, KIKUCHI Hisakazu
IEICE technical report. WBS, Wideband System 104 ( 375 ) 13 - 18 2004.10
Multiple Access Performance of Hybrid DS-Multiband-UWB System
SUM Chin Sean, SASAKI Shigenobu, ZHOU Jie, KIKUCHI Hisakazu
IEICE technical report. WBS, Wideband System 104 ( 375 ) 19 - 24 2004.10
"Invited" Joint UWBST & IWUWBS 2004 Report
SASAKI Shigenobu, SANADA Yukitoshi
IEICE technical report. WBS, Wideband System 104 ( 374 ) 1 - 5 2004.10
Impact of Chip Duty and Pulse Shape on Bit Error Probabilities for Ultra Wideband DS-CDMA
RAHMAN Mohammad Azizur, SASAKI Shigenobu, ZHOU Jie, KIKUCHI Hisakazu
IEICE SIP/WBS Technical Report 104 ( 215 ) 1 - 6 2004.7
RAHMAN Mohammad Azizur, SASAKI Shigenobu, ZHOU Jie, MURAMATSU Shogo, KIKUCHI Hisakazu
Technical report of IEICE. RCS 103 ( 682 ) 173 - 178 2004.2
Joint UWBST & IWUWBS 2004報告
佐々木重信
信学技報 WBS2004 - 10 2004
Effects of Partial Band Jamming on the Performance of Generalized Selection Combining Rake Receiver in Direct Sequence Spread Spectrum(DS-SS) Communications
RAHMAN Mohammad Azizur, SASAKI Shigenobu, ZHOU Jie, MURAMATSU Shogo, KIKUCHI Hisakazu
IEICE technical report. WBS, Wideband System 103 ( 400 ) 25 - 30 2003.10
Iterative Demodulation / Decoding for Coded Differential Parallel Combinatorial Spread Spectrum Systems
Sasaki Shigenobu, Asakawa Masashi, Hafuka Takamitsu, Zhou Jie, Muramatsu Shogo, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2003 93 - 93 2003.9
Impact of Narrowband Interference and Timing Jitter for Multiphase DS-UWB Signals
Kusama Takumi, Sasaki Shigenobu, Zhou Jie, Muramatsu Shogo, kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2003 "S - 29"-"S-30" 2003.9
Generalized Equations for Spatial Correlation of a Circular Antenna Array
ISHIZAWA Kenta, ZHOU Jie, SASAKI Shigenobu, MURAMATSU Shogo, KIKUCHI Hisakazu
Proceedings of the Society Conference of IEICE 2003 ( 1 ) 220 - 220 2003.9
Extraction of MPEG-7 Color Layout Discriptor from JPEG2000 Pictures
Iwafuchi Toshihiro, Muramatsu Shogo, Zhou Jie, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2003 83 - 83 2003.9
SA-3-16 Effects of Partial Band Jamming on Optimum Spreading Bandwidth for Generalized Selection Combining
Rahman Mohammad Azizur, Sasaki Shigenobu, Zhou Jie, Muramatsu Shogo, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2003 "S - 51"-"S-52" 2003.9
A lossless implementation of invertible deinterlacing for Motion-JPEG2000
Ishida Takuma, Muramatsu Shogo, Zhou Jie, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2003 82 - 82 2003.9
Two-Step Algorithm for Detecting Video Shot Boundaries in a Wavelet Transform Domain
HASEBE Satoshi, MURAMATSU Shogo, ZHOU Jie, SASAKI Shigenobu, KIKUCHI Hisakazu
ITE technical report 27 ( 35 ) 25 - 28 2003.6
Evaluation of Filters in Invertible Deinterlacing for Motion-JPEG2000
ISHIDA Takuma, MURAMATSU Shogo, JIE ZHOU, SASAKI Shigenobu, KIKUCHI Hisakazu
ITE technical report 27 ( 34 ) 13 - 16 2003.6
Overview and Trends of Ultra Wide Band (UWB) Technology
SASAKI Shigenobu
Technical report of IEICE. DSP 102 ( 718 ) 51 - 56 2003.3
A method of video shot boundary detection on a wavelet-transformed domain
Nagumo Makoto, Hasebe Satoshi, Muramatsu Shogo, Zhou Jie, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2003 ( 2 ) 87 - 87 2003.3
Blind SNR Estimation for Parallel Combinatorial SS Systems in Nakagami fading Channel
Uenaga Kazuyuki, Takizawa Kenichi, Sasaki Shigenobu, Zhou Jie, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2003 153 - 153 2003.3
Performance Estimation of a DS-CDMA Packet Cellular System in a Multi-Rate Multi-User Environment
ISHIZAWA Kenta, ZHOU Jie, SASAKI Shigenobu, KIKUCHI Hisakazu
Proceedings of the IEICE General Conference 2003 ( 1 ) 489 - 489 2003.3
On SNR Estimation Accuracy in Parallel Combinatorial SS Systems
Takizawa Kenichi, Sasaki Shigenobu, Zhou Jie, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2002 97 - 97 2002.8
M-ary TH/CSK Systems for Ultra Wideband (UWB) Wireless Communications
SASAKI Shigenobu, SUZUKI Tomohiko, ZHOU Jie, MURAMATSU Shogo, KIKUCHI Hisakazu
Technical report of IEICE. SST 102 ( 144 ) 7 - 10 2002.6
Finer-Scale Pseudo Gray for an sRGB CRT Monitor
KIKUCHI Hisakazu, SATO Hiroto, HASEBE Satoshi, MIZUTANI Naoki, MURAMATSU Shogo, SASAKI Shigenobu, ZHOU Jie, SEKINE Seishi, ABE Yoshito, NAKASHIZUKA Makoto
Technical report of IEICE. DSP 102 ( 41 ) 1 - 6 2002.5
UWB システムと技術に関する国際会議 (UWBST2000) 報告
佐々木重信
電子情報通信学会技術報告 SST2002 - 19 2002
UWB システムと技術に関する国際会議 (UWBST2002) 報告
佐々木重信
信学技報 SST2002 - 19 2002
Efficient Estimation Scheme of Channel State Information for Parallel Combinatorial SS Sytems(2)
Takizawa Kenichi, Sasaki Shigenobu, Zhou Jie, Muramatsu Shogo, Kikuhchi Hisakazu
Proceedings of the IEICE General Conference 188 - 188 2002
Ultra Wideband (UWB) 無線伝送のための M-ary TH/CSK 方式
佐々木重信
信学技報 SST2002 - 2 2002
Iterative demodulation/decoding for multiphase parallel combinatorial spread spectrum systems
HAFUKA Takamitsu, SASAKI Shigenobu, TAKIZAWA Ken-ichi, ZHOU Jie, MURAMATSU Shogo, KIKUCHI Hisakazu
24 ( 2 ) 699 - 702 2001.12
Intra-Frame/Field-Based Motion Picture Coding with Perfect Reconstruction De-interlacing
ISHIDA T., MURAMATSU S., Z. JIE, SASAKI S., KIKUCHI H.
Technical report of IEICE. CST 101 ( 461 ) 25 - 32 2001.11
Separate FEC Coding for Parallel Combinatorial SS Systems
Harada Tomoyuki, Sasaki Shigenobu, Kikuchi Hisakazu, Muramatsu Shogo, Jie Zhou
Proceedings of the Society Conference of IEICE 2001 135 - 135 2001.8
An Approach to Fast Content-based Video Querying Based on a Wavelet Decomposition
Hasebe Satoshi, Muramatsu Shogo, Sasaki Shigenobu, Jie Zhou, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2001 94 - 94 2001.8
Efficient Estimation Scheme of Channel State Information for PC/SS Systems
Takizawa Ken-ichi, Sasaki Shigenobu, Zhou Jie, Muramatsu Shogo, Kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2001 136 - 136 2001.8
SB-8-3 BER Performance Evaluation of a CDMA Cellular System with a Combination of Tilted Antenna Arrays and Power Control
Zhou Jie, Kikuchi Hisakazu, Sasaki Shigenobu, Muramatsu Shogo, Onozato Yoshikuni
Proceedings of the Society Conference of IEICE 2001 ( 1 ) 5 - 6 2001.8
Takizawa Kenichi, Sasaki Shigenobu, Zhou Jie, Muramatsu Shogo, Kikuchi Hisakazu
Technical report of IEICE. SST 101 ( 242 ) 37 - 42 2001.7
Iterative Decoding and Demodulation for Parallel Combinatorial Spread Spectrum Systems
TAKIZAWA Ken-ichi, SASAKI Shigenobu, KIKUCHI Hisakazu
Technical report of IEICE. RCS 100 ( 662 ) 117 - 122 2001.3
A Bit-Operation-Based Algorithm of Dominant Color Extraction
KURIHARA Tomotaka, MURAMATSU Shogo, SASAKI Sigenobu, KIKUCHI Hisakazu
Proceedings of the IEICE General Conference 2001 149 - 149 2001.3
Iterative Decoding and Demodulation for Coded Parallel Combinatorial Spread Spectrum System
Takizawa Ken-ichi, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 2001 173 - 173 2001.3
Multistage Forward Error Correction for Wavelet Zerotree Image Coding in Packet Transmission
SHIRAI Michitomo, SASAKI Shigenobu, MURAMATSU Shogo, JOO Sang-hyun, KIKUCHI Hisakazu
IEICE technical report. Circuits and systems 100 ( 573 ) 37 - 44 2001.1
A Study on Coded Parallel Combinatorial Spread Spectrum Systems Using Multiphase Modulation
YAMAGISHI Jun, SASAKI Shigenobu, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. SST 100 ( 514 ) 19 - 24 2000.12
Zerotree Image Coding for Packet Transmission
Shirai Michitomo, Muramatu Shougo, Sasaki Shigenobu, kikuchi Hisakazu
Proceedings of the Society Conference of IEICE 2000 297 - 298 2000.9
A Study on Coded Parallel Combinatorial SS Systems in Rayleigh Fading Channel
MEGURO Shuho, TAKIZAWA Ken-ichi, SASAKI Shigenobu, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. SST 99 ( 341 ) 7 - 12 1999.9
A Study on Coding Scheme for Parallel Combinatorial Spread Spectrum Systems
SASAKI Shigenobu, TAKIZAWA Ken-ichi, YAMAGISHI Jun, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. DSP 99 ( 195 ) 43 - 48 1999.7
Performance of SPIHT Image Coding with Channel Coding in Burst Error Channel
SASAKI Shigenobu, WATANABE Arata, JOO Sanghyun, KIKUCHI Hisakazu
Technical report of IEICE. RCS 99 ( 142 ) 19 - 24 1999.6
A Study on Decoding Scheme of coded Parallel Combinatorial SS Systems in a Rayleigh Fading Channel
TAKIZAWA Kenichi, KON Takashi, SASAKI Shigenobu, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. ISEC 98 ( 656 ) 19 - 24 1999.3
Zerotree Image Coding for Packet Communication (2)
MOMOKAWA Nobuhiro, FUJINUMA Yasutaka, HWANG Jung-Hyeun, JOO Sang-hyun, SASAKI Shigenobu, KIKUCHI Hisakazu
Technical report of IEICE. ISEC 98 ( 656 ) 149 - 154 1999.3
Wavelet Packet-Based Vibration Analysis of Combustion Vehicle Engines
Takada Hiroshi, Kikuchi Hisakazu, Sasaki Shigenobu, Nakashizuka Makoto, Tomisawa Naoki
Proceedings of the IEICE General Conference 1999 140 - 140 1999.3
A Study on DS/CDMA using different carrier frequencies
TSUJI Kazuya, SASAKI Shigenobu, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. DSP 98 ( 212 ) 93 - 98 1998.7
A Study of Differential Parallel Combinatorial CDMA Systems in Multipath Fading Channel
KON Takashi, SASAKI Shigenobu, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. RCS 97 ( 322 ) 1 - 6 1997.10
Parallel Combinatory SS Communication System Using Post-despreading Carrier Recovery
MIYOSHI Seigo, TANAKA Masaki, URABE Kenzo, HOKARI Haruhide, SASAKI Shigenobu, MARUBAYASHI Gen
Technical report of IEICE. RCS 97 ( 267 ) 55 - 60 1997.9
A Study on Wavelet Packet-Based Interference Suppression in Direct Sequence Spread Spectrum Communication Systems
SASAKI Shigenobu, OGAWA Takutomi, CHIKIRA Kazuaki, NAKASIZUKA Makoto, KIKUCHI Hisakazu, MARUBAYASHI Gen
Technical report of IEICE. DSP 97 ( 167 ) 25 - 30 1997.7
A Study on the Bias Compensation and Variable Step Size Algorithms for the Filtered-X
NOMOTO Hideki, TERA Hideo, KIKUCHI Hisakazu, SASAKI Shigenobu, NAKASHIZUKA Makoto, TOMISAWA Naoki
Technical report of IEICE. DSP 97 ( 38 ) 47 - 54 1997.5
IEEE International Symposium on Spreas Spectrum Techniques and Applications (ISSSTA 96) スペクトル拡散技術と応用国際シンポジウム
佐々木 重信
電子情報通信学会誌 80 ( 1 ) 99 - 99 1997.1
A Synthesis of an Active RC Filter Using the symmetrical circuit
WATANABE Hiromichi, TERAO Manabu, KIKUCHI Hisakazu, SASAKI Sigenobu
1997 ( 1 ) 17 - 22 1997.1
Studies on High Definition Image Coding Using Wavelet Transform
TOSAKA Hideki, SUGAWARA Yukihide, SASAKI Shigenobu, KIKUCHI Hisakazu
Technical report of IEICE. DSP 96 ( 183 ) 31 - 36 1996.7
A Study on Data Volume in Multiresolution Hierarchical Coding
Oinuma Masahiro, Abe Yoshito, Tosaka Hideki, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 1996 ( 2 ) 59 - 59 1996.3
Multiresolution Hierarchical Coding for High Definition Images
Tosaka Hideki, Abe Yoshito, Oinuma Masahiro, Sasaki Shigenobu, Kikuchi Hisakazu
Proceedings of the IEICE General Conference 1996 452 - 453 1996.3
A Studay on Tracking Method for Parallel Combinatory Spread Spectrum Communication Systems
NITTA Yoshimi, SASAKI Shigenobu, KIKUCHI hisakazu, Watanabe hiromichi, Zhu Jinkang, MARUBAYASHI Gen
Proceedings of the IEICE General Conference 1996 230 - 230 1996.3
Multi-Resolution Joint Sub-Image Vector Quantization for Image Compression
KIKUCHI Hisakazu, NAKAZAWA Takeshi, ABE Yoshito, SASAKI Shigenobu
IEICE technical report. Circuits and systems 95 ( 556 ) 37 - 42 1996.3
Narrow-band Interference Suppression in Direct Sequence Spread Spectrum Signals Using Wavelet Packets
Hirata T, Sasaki S, Chikira K, Nakashizuka M, Kikuchi H, Marubatashi G
Proceedings of the Society Conference of IEICE 268 - 269 1996
CW Interference Suppression in Direct Sequence Spread Spectrum Signals Using Multiresolution Iterative Projection
Sasaki Shigenobu, Hirata Tsuyoshi, Kikuchi Hisakazu, Watanabe Hiromichi, Marubayashi Gen
Technical report of IEICE. SST 95 ( 58 ) 31 - 36 1995.5
Multi-Resolution Vector Quantization for Still Image Coding
NAKAZAWA Takeshi, ABE Yoshito, SASAKI Shigenobu, KIKUCHI Hisakazu, WATANABE Hiromichi
IEICE technical report. Image engineering 95 ( 52 ) 13 - 20 1995.5
A Study on Error Sensitivity of Multiresolution Vector Quantized Images
Sasaki Shigenobu, Nakazawa Takeshi, Abe Yoshito, Kikuchi Hisakazu, Watanabe Hiromichi
Proceedings of the IEICE General Conference 1995 ( 2 ) 94 - 94 1995.3
A Study on Multi-resolution Vector Quantization
NAKAZAWA Takeshi, ABE Yoshito, SASAKI Shigenobu, KIKUCHI Hisakazu, WATANABE Hiromichi
Proceedings of the IEICE General Conference 1995 ( 2 ) 95 - 95 1995.3
A synthesis of active RC dividing circuit with three passband
WATANABE Hiromichi, YOKOTA Osamu, KIKUCHI Hisakazu, SASAKI Shigenobu
1995 ( 1 ) 1 - 9 1995.1
Articulation Rate Slow-Down by Wavelet Transforms
Serizawa Megumi, Kikuchi Hisakazu, Nakashizuka Makoto, Sasaki Shigenobu, Watanabe Hiromichi
IEICE technical report. Circuits and systems 94 ( 116 ) 145 - 152 1994.6
Vector Quantization Using the Inter-Scale Correlation in the Wavelet Expansion
NAKAZAWA Takeshi, KIKUCHI Hisakazu, SASAKI Shigenobu, ABE Yoshito
179 - 179 1994
A Study on Synchronization Scheme for Parallel Combinatory Spread Spectrum Communication Systems
Sasaki Shigenobu, Kikuchi Hisakazu, Watanabe Hiromichi, Zhu Jinkang, Marubayashi Gen
IEICE technical report. Information theory 93 ( 381 ) 103 - 108 1993.12
並列組合せSS通信方式の写像法と復調法に関する一検討
佐々木重信
信学技報 SSTA90 - 43 1990
周波数共用の判定装置、判定方法および判定プログラム
大宮陸, 村上友規, 鷹取泰司, 佐々木重信, 安部功将
有線スペクトル拡散通信装置、その通信方法および有線スペクトル拡散通信システム
佐々木 重信, 川島 光智
エネルギーハーベスティングを用いた異種無線センサネットワークの数理モデルの構築
Grant number：19K04390
2019.4 - 2022.3
System name：科学研究費助成事業 基盤研究(C)
Research category：基盤研究(C)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\4290000 （ Direct Cost: \3300000 、 Indirect Cost：\990000 ）
本研究では異種の無線センサネットワーク(WSN)が混在する状況で、RFエネルギーハーベスティング (RF-EH)機能を無線端末に備えることで周辺の無線端末からの電波からエネルギーを獲得し、WSNにおける情報伝送の信頼性を確保しつつ動作寿命を飛躍的に延ばすことを狙いとした。そのためにWSNにおけるエネルギー収支および回線収支解析の理論的基盤を構築し、それを通してRF-EHの導入による異種WSNの長寿命化の可能性とその条件を明らかにすることを目的とし、本年度は以下の研究成果を得た。
(1)送信端末／中継端末／基地局（受信端末）を持つSimultaneous wireless information and power transfer (SWIPT)によるリレー伝送において，多数のノードのリレー伝送を行う中継局が複数のアンテナとRF-EH 機能を備えることにより，データ伝送とエネルギーを同時に行う手法を検討した．中継局は, アンテナ切り替え (AS)によりデータ伝送用とエネルギー伝送用にアンテナを割り振ることでSWIPTリレー伝送を行う．ここでは送信端末数、中継局が使用するアンテナ本数や切り替え手法の違いが通信品質に与える影響をOutage 確率の評価により明らかにした．中継端末から基地局へは複数アンテナによるMIMO伝送を想定した評価を行った。
(2) センサ端末におけるデータ伝送とRF-EHのエネルギー収支モデルを構築し、エネルギー源となる無線端末をどの程度の範囲まで考慮すれば良いかを明らかにした。また無線端末からのエネルギーが確率的に到来する場合のエネルギー収支モデルの構築を行った。これらを通し、WSNを構成する要素となるリレー伝送におけるエネルギー収支モデルの土台が構築できた。
周波数共用型小電力無線通信のための高度スペクトルマネジメント技術の研究開発
2013.7 - 2014.3
System name：総務省「戦略的情報通信研究開発推進制度(SCOPE)」
Awarding organization：総務省
佐々木重信
Authorship：Principal investigator Grant type：Competitive
Grant amount：\3265801 （ Direct Cost: \2286061 、 Indirect Cost：\979740 ）
ホワイトスペースにおける新たなブロードバンドアクセスの実現に向けた周波数高度利用技術の研究開発
2011.8 - 2014.3
System name：総務省「電波資源拡大のための研究開発」
Awarding organization：総務省
原田 博司
Grant type：Competitive
Grant amount：\98582187 （ Direct Cost: \88723969 、 Indirect Cost：\9858218 ）
適応マルチバンドパルス型ＵＷＢによる高信頼微弱無線伝送技術の研究
2010.4 - 2013.3
System name：科学研究費助成事業
Research category：基盤研究(C)
Awarding organization：日本学術振興会
Grant type：Competitive
Grant amount：\2200000 （ Direct Cost: \1540000 、 Indirect Cost：\660000 ）
周囲の電波環境に応じて適応的に信号の周波数帯と電力を制御する適応マルチバンドパルス型ウルトラワイドバンド(UWB)方式による高い信頼性を持つ小電力無線データ伝送の実現を目標とし、その実現のための以下の研究を行う。
・既存無線通信システムとの共存のための電波情報検出技術の検討
・また、直接拡散パルス型UWBによる「一定レベルの受信性能を得る確率」である誤り率の累積分布による評価
・無線パケット伝送における伝送成功確率の向上のカギとなる同期技術
超広帯域（UWB)微弱無線伝送のための多次元変復調・符号化技術の研究
2004.4 - 2007.3
System name：科学研究費助成事業
Research category：基盤研究(C)
Awarding organization：日本学術振興会
高速無線データ伝送のための多相並列組合せCDMA方式の誤り制御技術
Grant number：11750314
1999
System name：科学研究費助成事業 奨励研究(A)
Research category：奨励研究(A)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\1800000 （ Direct Cost: \1800000 ）
高度道路交通システム(ITS)における無線技術に関する企画調査研究
Grant number：10895008
1998
System name：科学研究費助成事業 基盤研究(C)
Research category：基盤研究(C)
Awarding organization：日本学術振興会
中川 正雄, 山里 敬也, 佐々木 重信, 水井 潔, 長谷川 孝明, 入谷 忠光
Grant amount：\3100000 （ Direct Cost: \3100000 ）
ITS無線技術の調査を国内外での学術会議における研究動向を中心に行った.
1. 1998年電子情報通信学会ソサイエティ大会
ITS分野間での有機的な研究上の協力関係を生むべく,電子情報通信学会の基礎・境界分野と情報・システム分野の共同シンポジウムが4日間に渡り開かれ,無線通信分野でも従来のセルラ移動通信パラダイムを大きく転換させた議論が行われた.
2. 1998 IEEE Vehicular Technology Conference(VTC'98)
国際会議IEEE VTC'98ではITSに関係したセッションが3本設けられ,車車間通信・路車間通信等の無線技術に関する討議が行なわれた.ミリ波関係のセッションでもITSへの応用を意図した発表が見られた.またITSにおける無線通信技術などに関するチュートリアルも開催されている.
3. 5th World Congress on Inlelligent Transport Systems(1998)
ITS国際会議の無線通信関連論文は,車車間通信では基地局ありの位置決めに関するものが多く.基地局なしでは運転アシストが主流である.路車間通信ではレーダを用いた自動運転に関するものが多く,ネットワーク技術,放送,自動料金収集に関するもの等の順となる.その他ミリ波レーダ技術やGPS受信機に関するもの等がある.
4. 欧州視察
イタリアのボローニャ大学及びフランスの大学院EURECOMを訪問し,車車間通信のアクセス技術,イタリアETCの現状,日欧におけるミリ波を利用した車車間通信の標準化作業状況,ITSへのソフトウェア無線の応用の可能性,運転者とITSのインターフェースの関わり方,等に関して議論を行った.
5. 地域におけるITSでの無線技術調査
岡山県と高知県を訪問し,地域におけるITSの開発実例を無線通信技術の重要性,構成法を中心に調査した.
移動体通信における高速データ伝送のための差動並列組合せCDMA方式の誤り制御技術
Grant number：09750402
1997 - 1998
System name：科学研究費助成事業 奨励研究(A)
Research category：奨励研究(A)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\2100000 （ Direct Cost: \2100000 ）
マルチコードCDMA本方式の一つである並列組合せCDMA(以下PC/CDMAと略す)通信方式に,受信側で遅延検波を用いることで,受信側における搬送波の位相再生を不要にした差動PC/CDMA方式について,誤り訂正符号を適用した場合の効果について研究を行った.本年度は昨年度の成果を踏まえ,無線LAN等への適用を考慮に入れつつ,以下に示すような研究を行った.
(1) 差動PC/CDMA方式に対して誤り訂正符号を適用した場合の誤り率特性の評価を行った.室内における無線LANを想定し,ライスフェージング通信路を通信路モデルとして採用した.誤り訂正符号としてリード・ソロモン(RS)符号を用い,従来のDPSK-直接拡散CDMA方式よりも良好な誤り率特性を示すことがわかった.またダイバーシチ受信を用いることでより大きな性能改善が得られることがわかった.
(2) RS符号を用いた並列組合せCDMA方式においては,受信側で消失誤り訂正復号を適用することで性能の向上が図れることを昨年度の研究で見出した.本年度はそれに引き続き,CDMA環境における効果を理論解析を用いて記号誤り率およびビット誤り率により評価し,CDMA環境における効果を確認した.この検討を踏まえ,フェージングの影響により瞬時的な受信SN比が低くなる部分を消失とするために,受信側の相関出力を用いる方法,およびそれに加えて受信側における組合せの検定を用いる方法というPC/CDMA独自の消失位置判定法を考案した.計算機シミュレーションによる性能評価を行ない,従来の復号法に比べて大幅な性能の改善が可能なことを見出した.
(3) 差動PC/CDMA方式への新たな誤り制御技術として,近年強力な誤り訂正符号として注目されているターボ符号の適用について検討を行なった.今年は,通常のPC/CDMAに直接ターボ符号化を行なった場合について,AWGN通信路ならびにフェージング通信路における性能評価を行い,その効果を確認した.
移動体通信における高速データ伝送のための多相並列組合せCDMA変複調技術の研究
Grant number：08750421
1996
System name：科学研究費助成事業 奨励研究(A)
Research category：奨励研究(A)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\1000000 （ Direct Cost: \1000000 ）
並列組合せスペクトル拡散(以下PC/SSと略す)通信方式に多相変調を組合わせることで,高速なデータ伝送を可能にした,多相並列組合せスペクトル拡散(MPC/SS)通信方式の変複調技術の研究を行った.本年度は,雑音のみの伝送路における基本的な特性を明らかにし,今後の研究への手掛かりを得ることに重点をおいた.
(1)多相変調を用いたPC/SS方式の1ユーザ当りの周波数利用効率について検討した. PC/SS方式は,あらかじめ用意された複数の拡散系列の組の中からいくつかの拡散系列を選び,その組合せを送信することで,1ユーザ当りの周波数利用効率を高くできることがこれまでに分かっている.本研究において,送信する拡散系列に多相変調を併用することにより,1ユーザ当りの周波数利用効率を高めることができ,従来の多相PSK方式よりも高い周波数利用効率を得られることがわかった.
(2)送信された拡散系列の位相を推定する際に,受信側で同期検波を用いた場合における記号誤り率およびビット誤り率特性の解析を行った.データ伝送速度と占有周波数帯域が同一の場合の多相PSK変調を用いた直接拡散SS方式と比べて、良好な誤り率特性が得られることを確認した.
(3)多相差動PSK(DPSK)を適用し,受信側で遅延検波を用いることで,受信側における搬送波の位相再生を不要にした差動MPS/SS方式について誤り率特性の解析を行った.その結果,従来の差動多相変調を併用した直接拡散SS方式よりも良好な誤り率特性を示すことがわかった.特に,4相DPSKを用いたMPC/SS方式が,データ伝送速度と占有周波数帯域が同一の場合の4相DPSK変調を用いた直接拡散SS方式と比べて,誤り率特性の改善効果が大きいことがわかった.
A Study on High-Quality Layred Transmission of Images on the Basis of Multiresolution Representations
Grant number：07650419
1995 - 1997
System name：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Research category：Grant-in-Aid for Scientific Research (C)
Awarding organization：Japan Society for the Promotion of Science
KIKUCHI Hisakazu, SASAKI Shigenobu
Grant amount：\1900000 （ Direct Cost: \1900000 ）
A broader interest in this research is targeted at the mobile telecommunications for imagery. The purpose of study is to develop a quality high-speed layred transmission system for images. A platform for image representations is provided by the wavelet-based multiresolution representation, and the parallel combinatorial spread apectrum technology is assumed to be a promising wireless telecommunication system. Major results are summarized in four points as follows.
/1/A layred image coding scheme is studied to provide wide-range scalability with respect to both image quality and spatial resolution, and the coding scheme comprises a direct-product wavelet expansion, nonlinear quantization with dead bands, multi-stage zero runlength coding and arithmetic coding.
/2/For quality image transmission in mobile telecommunications, parallel combinatorial spread apectrum systems are investigated in conjunction with error correcting decoding, and also their bit error rate performances have been found to be significantly improved in typical multipath fading channels.
/3/Decoded image quality has been very improved in realistic wireless telecommunication environments by negotiable trade-off between a layred encoded data stream and additional error correcting codes.
/4/As an option at receivers, a new image enhancement method has been developed. It is a local feature-based estimation based on statistical knowledge described in a vector quantization code book, and the code book consists of typical behaviors of edges and outlines across scales in a wavelet-based multiresolution space.
移動体通信における高速データ伝送のための並列組合せCDMA方式の変調技術の研究
Grant number：07750410
1995
System name：科学研究費助成事業 奨励研究(A)
Research category：奨励研究(A)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\1100000 （ Direct Cost: \1100000 ）
本年度は、並列組合せスペクトル拡散(以下PC/SSと略す)通信方式のうち,送信する拡散符号の変調にDPSKを適用することで,受信側における搬送波の位相再生を不要にした差動PC/SS方式について以下の検討を行った.
(1)データ伝送の高速化を図った方式として,差動多相変調方式を併用したPC/SS方式について検討した.誤り率特性の解析を行った結果,従来の差動多相変調を併用した直接拡散SS方式よりも良好な誤り率特性を示すことがわかった.
(2)移動体通信の典型的なモデルとして,周波数選択性レイリーフェージング伝送路を取り上げ,この伝送路における差動PC/SS方式の多元接続性能を解析した.データ伝送速度と占有周波数帯域が同一の場合のDPSK変調を用いた直接拡散SS方式と比べて,良好な誤り率特性が得られることを確認した.
(3)前項の結果を元に,移動体通信において性能の改善に有効とされているダイバーシチ技術を用いた場合の性能評価を行った.周波数選択性フェージング伝送路を想定し,受信側で受信信号と拡散符号との相関をとった後の出力を一定の時間間隔をおいたものについて合成する(RAKE受信)とアンテナ等による簡易なダイバーシチを併用し,最大比合成法により出力を合成した場合の性能を評価した.その結果,直接拡散SS方式と比べてさらに誤り率の改善が可能なことがわかった.
(4)リ-ド・ソロモン符号を誤り訂正符号として適用し,(2)と同様の場合における多元接続特性について検討した.その結果,同一の情報速度,および周波数帯域の条件で,従来のDPSK変調を用いた直接拡散SS方式に比べてはるかに多元接続時の誤り率特性が改善されることがわかった.
並列組合せSS通信方式を用いたCDMA移動体通信における誤り制御技術の研究
Grant number：06750376
1994
System name：科学研究費助成事業 奨励研究(A)
Research category：奨励研究(A)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\900000 （ Direct Cost: \900000 ）
本年度は、移動体通信における並列組合せスペクトル拡散(以下PC/SSと略す)通信方式の性能を確認するため、周波数選択性フェージング伝送路を対象として、PC/SS方式の多元接続性能の解析を行った。そして得られた解析結果をもとに、性能を向上させるための技術として、以下の検討を行った。
(1)移動体通信において性能の改善に有効とされているダイバーシティ技術を用いた場合の性能評価を行った。周波数選択性フェージング伝送路の場合、SS方式では受信側で、受信信号と拡散符号との相関をとった後の出力を一定の時間間隔をおいたものについて合成する(RAKE受信)ことにより、ダイバーシティ効果が得られるため、これとアンテナ等による簡易なダイバーティを併用した場合を想定し、最大比合成法を用いた場合の性能を評価した。その結果、ダイバーシティを併用することで、従来の直接拡散SS(DS/SS)方式に比べて、誤り率の改善が可能なことがわかった。
(2)リ-ド・ソロモン符号を誤り訂正符号として適用し、(1)と同様の場合における多元接続特性について検討した。その結果、同一の情報速度、および周波数帯域の場合、従来のDS/SS方式を用いた場合に比べてはるかに多元接続時の誤り率特性が改善されることがわかった。従来、SS方式で高速データ伝送を行う際に、所要の誤り率を保ちつつ多元接続を行うのは難しいと考えられていたが、本方式によりこの事を実現できる可能性を見出すことができた。
(3)さらに高速データ伝送を可能にするため、多値・多相変調方式を併用したPC/SS方式についても検討した。その結果、多相変調を併用したPC/SS方式が良好な誤り率特性を示すことがわかった。
移動体通信における並列組合せSS通信方式の誤り制御技術に関する研究
Grant number：05750334
1993 - 1994
System name：科学研究費助成事業 奨励研究(A)
Research category：奨励研究(A)
Awarding organization：日本学術振興会
佐々木 重信
Grant amount：\900000 （ Direct Cost: \900000 ）
本年度は、移動体通信における並列組合せSS(以下PC/SSと略す)通信方式の誤り制御技術の開発の手始めとして、緩慢な周波数選択性のレイリーフェージング伝送路における、PC/SS方式の性能解析を行った。この解析結果をもとに、性能を向上させるための技術として、以下の2つについて検討した。
(1)リ-ド・ソロモン符号を誤り制御符号として適用し、レイリーフェージング伝送路の場合の最適な符号化率を求めた。その結果、最適な符号化率は1/4〜3/8と、これまで検討してきた雑音のみの伝送路の場合の約半分となることがわかった。そして、符号化を行った場合の性能評価を行い、誤り率の改善効果を確認した。
(2)移動体通信において性能の改善に有効とされているダイバーシティ技術を用いた場合の性能評価を行った。ここでは周波数非選択性フェージング伝送路を仮定しているため、アンテナ等による簡易なダイバーティを想定し、選択合成法を用いた場合の性能を評価した。その結果、簡単な構成で大幅な誤り率の改善が可能なことがわかった。
これらの検討・評価を1局のみの場合、および複数の局による多元接続を行った場合について行った。
今後、移動体通信により適したPC/SS方式と、その誤り制御技術の開発のため、遅延検波を適用した方式や、RAKE受信機の適用等について検討していく予定である。
工学リテラシー入門（電気電子工学科）
電気電子工学研究発表（外部発表）
電気電子創造設計
電気電子設計製図
離散時間アナログ信号処理
信号処理
自然科学総論Ⅲ
電気電子工学特定研究Ⅰ
アドバンストテクノロジー
電気電子工学研究発表演習（中間発表）
電気電子工学文献詳読Ⅱ
電気情報工学特定研究Ⅱ
電気電子工学研究発表演習（外部発表）
中間発表
電気情報工学特定研究Ⅲ
電気電子工学セミナーⅠ
電気電子工学特定研究Ⅱ
電気電子工学文献詳読Ⅰ
電気電子工学セミナーⅡ
プロジェクト研究特別概説
論文輪講
通信基礎
電気電子工学実験II
電気電子工学実験IV
電気電子演習
ディジタル無線伝送工学
卒業研究
エレクトロニクス入門
スペクトル拡散通信論
通信方式
卒業基礎研究
プログラミング基礎
電気電子工学実験III
プログラミング基礎演習
電気電子工学実験I
スタディスキルズ（電気電子工学）
エンジニアのためのデータサイエンス入門(情報電子分野)
電子情報通信実験III
物理工学II
電波・電気通信法規
電気法規・施設管理
スペクトル拡散通信論
通信方式基礎
電子情報通信設計製図
情報セキュリティ概論
論文輪講I
論文輪講II
電子情報通信実験IIIB
電子情報通信実験IIIA
工学リテラシー入門(情報電子分野)
総合技術科学演習
ディジタル信号処理
リメディアル演習
電子情報通信実験IIA
電子情報通信実験IIB
電子情報通信実験IB
アドバンストテクノロジー
電子情報通信実験IA
電子情報通信概論
信号処理
電気電子工学研究発表(外部発表)
プロジェクト研究特別概説
自然科学総論Ⅲ
電気電子工学特定研究Ⅱ
電気電子工学セミナーⅡ
電気電子工学特定研究Ⅰ
電気電子工学文献詳読Ⅱ
電気電子工学研究発表演習(中間発表)
電気電子工学セミナーⅠ
電気電子工学文献詳読Ⅰ
電気電子工学研究発表演習(外部発表)
電気情報工学特定研究Ⅱ
中間発表
電気情報工学特定研究Ⅲ
離散時間アナログ信号処理
電気電子設計製図
電気電子創造設計
卒業研修
工学リテラシー入門(電気電子工学科)
スタディスキルズ(電気電子工学)
卒業研究
ディジタル無線伝送工学
プログラミング基礎
電気電子工学実験IV
通信基礎
電気電子工学実験II
通信方式
スペクトル拡散通信論
電気電子工学実験III
電気電子工学実験I
論文輪講
エレクトロニクス入門
プログラミング基礎演習
電気電子演習
卒業基礎研究
