Shigenobu SASAKI


Interference Mitigation Capability of a Low Duty DS-Multiband-UWB System in Realistic Environment
Chin-Sean SUM  Shigenobu SASAKI  Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12  pp. 2762-2772
Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
interference mitigationDS-MB-UWBsub-band power suppressionlow duty factornarrowband interferencemultipathmulti-user
  Summary |  Full Text:PDF

Impact of Chip Duty Factor on DS, TH and DS-TH UWB Systems in Realistic Environment
Chin-Sean SUM  Shigenobu SASAKI  Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/10/01
Vol. E93-A  No. 10  pp. 1716-1723
Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: UWB System
Keyword: 
UWBchip duty factorDSTHDS-THenergy capture
  Summary |  Full Text:PDF

Error Probability of MRC in Frequency Selective Nakagami Fading in the Presence of CCI and ACI
Mohammad Azizur RAHMAN  Chin-Sean SUM  Ryuhei FUNADA  Shigenobu SASAKI  Tuncer BAYKAS  Junyi WANG  Hiroshi HARADA  Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11  pp. 2679-2687
Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
maximal ratio combining (MRC)frequency selective Nakagami fadinginter-symbol interference (ISI)co-channel interference (CCI)adjacent channel interference (ACI)
  Summary |  Full Text:PDF

Error Analysis of Hybrid DS-Multiband-UWB Multiple Access System in the Presence of Narrowband Interference
Chin-Sean SUM  Mohammad Azizur RAHMAN  Shigenobu SASAKI  Hiroshi HARADA  Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2167-2176
Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Ultra Wideband System
Keyword: 
error analysisDS-Multiband-UWBmultiple access interferencemultipath interferencenarrowband interferencerake receiver
  Summary |  Full Text:PDF

A Simple Exact Error Rate Analysis for DS-CDMA with Arbitrary Pulse Shape in Flat Nakagami Fading
Mohammad Azizur RAHMAN  Shigenobu SASAKI  Hisakazu KIKUCHI  Hiroshi HARADA  Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1808-1812
Type of Manuscript: Special Section LETTER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
DS-CDMAmulti-access communicationerror rate analysisNakagami fading
  Summary |  Full Text:PDF

Exact Error Rate Analysis for Pulsed DS- and Hybrid DS/TH-CDMA in Nakagami Fading
Mohammad Azizur RAHMAN  Shigenobu SASAKI  Hisakazu KIKUCHI  Hiroshi HARADA  Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3150-3162
Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
ultra-widebandcode division multiple accesserror rate analysisNakagami fading
  Summary |  Full Text:PDF

Impact of Chip Duty Factor in DS-UWB Systems over Indoor Multipath Environment
Chin Sean SUM  Shigenobu SASAKI  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/11/01
Vol. E89-A  No. 11  pp. 3152-3156
Type of Manuscript: Special Section LETTER (Special Section on Wide Band Systems)
Category: 
Keyword: 
chip duty factorDS-UWBUWB indoor multipath channelbit error rate (BER)spreading bandwidth
  Summary |  Full Text:PDF

Impact of Timing Jitter on DS-UWB and Hybrid DS-Multiband-UWB Systems with Rake Reception over Multipath Environment
Chin Sean SUM  Shigenobu SASAKI  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/06/01
Vol. E89-A  No. 6  pp. 1657-1667
Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2005))
Category: 
Keyword: 
timing jitterDS-MB-UWBDS-UWBRake receptionSER
  Summary |  Full Text:PDF

Error Analysis for Ultra-Wideband DS- and Hybrid DS/TH-CDMA with Arbitrary Chip-Duty
Mohammad Azizur RAHMAN  Shigenobu SASAKI  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/06/01
Vol. E89-A  No. 6  pp. 1668-1679
Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2005))
Category: 
Keyword: 
ultra-widebandcode division multiple accesserror analysisstandard and improved Gaussian approximations
  Summary |  Full Text:PDF

Error Performance of DS-CDMA over Multipath Channel Using Selective Rake Receiver
Mohammad Azizur RAHMAN  Shigenobu SASAKI  Jie ZHOU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/11/01
Vol. E88-A  No. 11  pp. 3118-3122
Type of Manuscript: Special Section LETTER (Special Section on Wide Band Systems)
Category: 
Keyword: 
DS-CDMAmultipath channelselective Rake receiverstandard and improved Gaussian approximations
  Summary |  Full Text:PDF

On Rake Reception of Ultra Wideband Signals over Multipath Channels from Energy Capture Perspective
Mohammad Azizur RAHMAN  Shigenobu SASAKI  Jie ZHOU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2339-2349
Type of Manuscript: Special Section PAPER (Special Section on Ultra Wideband Systems)
Category: RAKE Receiver
Keyword: 
ultra widebandmultipathRake receptionenergy capturepulse-width
  Summary |  Full Text:PDF

Evaluation of Selective Rake Receiver in Direct Sequence Ultra Wideband Communications
Mohammad Azizur RAHMAN  Shigenobu SASAKI  Jie ZHOU  Shogo MURAMATSU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/07/01
Vol. E87-A  No. 7  pp. 1742-1746
Type of Manuscript: Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Mobile Communication
Keyword: 
ultra widebandselective Rake receiverspreading bandwidthpower delay profilepartial band interference
  Summary |  Full Text:PDF

Online SNR and Fading Parameter Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels
Kazuyuki UENAGA  Shigenobu SASAKI  Ken-ichi TAKIZAWA  Jie ZHOU  Shogo MURAMATSU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/06/01
Vol. E87-A  No. 6  pp. 1495-1499
Type of Manuscript: Special Section LETTER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003))
Category: 
Keyword: 
spread spectrummulticode systemsonline SNR estimationNakagami fading
  Summary |  Full Text:PDF

Generalized Spatial Correlation Equations for Antenna Arrays in Wireless Diversity Reception: Exact and Approximate Analyses
Jie ZHOU  Kenta ISHIZAWA  Shigenobu SASAKI  Shogo MURAMATSU  Hisakazu KIKUCHI  Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/01/01
Vol. E87-B  No. 1  pp. 204-208
Type of Manuscript: LETTER
Category: Antennas and Propagation
Keyword: 
spatial correlationangular spreadantenna array and diversity reception
  Summary |  Full Text:PDF

Cell Boundary Shifting with Power Ratio Control and Tilted Antenna Arrays in a Cellular Wireless Communications
Jie ZHOU  Shigenobu SASAKI  Hisakazu KIKUCHI  Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/10/01
Vol. E86-A  No. 10  pp. 2607-2614
Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Communications Systems
Keyword: 
cellular systemreverse/forward linkstraffic balancetilted antenna arraypower ratio controlradiation pattern
  Summary |  Full Text:PDF

Spatial Correlation Functions for a Circular Antenna Array and Their Applications in Wireless Communication Systems
Jie ZHOU  Shigenobu SASAKI  Shogo MURAMATSU  Hisakazu KIKUCHI  Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1716-1723
Type of Manuscript: Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
spatial correlated functionantenna arrayNakagami fadingMRC and diversity reception
  Summary |  Full Text:PDF

Performance Analysis of a DS-CDMA Cellular System with Cell Splitting into Macrocell and Microcell Architecture
Jie ZHOU  Shigenobu SASAKI  Shogo MURAMATSU  Hisakazu KIKUCHI  Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/06/01
Vol. E86-B  No. 6  pp. 1967-1977
Type of Manuscript: PAPER
Category: Terrestrial Radio Communications
Keyword: 
system capacityoutage probabilitycapacity planecode division multiple access (CDMA)macrocell and microcell
  Summary |  Full Text:PDF

Online SNR Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels
Ken-ichi TAKIZAWA  Shigenobu SASAKI  Jie ZHOU  Shogo MURAMATSU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12  pp. 2847-2858
Type of Manuscript: Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
multi-code DS/SSonline SNR estimationiterative decodingNakagami fading channels
  Summary |  Full Text:PDF

Performance Investigation of Two Transmit Diversity Schemes with Perfect/Imperfect Channel Evaluation in Wireless Communications
Jie ZHOU  Hisakazu KIKUCHI  Shigenobu SASAKI  Shogo MURAMATSU  Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 1957-1965
Type of Manuscript: Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
transmit diversityperfect/imperfect channel detectionantenna arraymaximal-ratio combiningmulti-path mitigation
  Summary |  Full Text:PDF

Performance Bounds in Convolutional Coded Parallel Combinatorial SS Systems
Ken-ichi TAKIZAWA  Shigenobu SASAKI  Shogo MURAMATSU  Jie ZHOU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1696-1701
Type of Manuscript: Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
multicode SSconvolutional codeiterative demodulation and decoding
  Summary |  Full Text:PDF

Forward Link Performance of TDMA/W-CDMA Spectrum Overlaid System with Interference Cancellation for Future Wireless Communications
Jie ZHOU  Hisakazu KIKUCHI  Shigenobu SASAKI  Shogo MURAMATSU  Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1536-1545
Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
code division multiple access (CDMA)time-division multiple access (TDMA)TDMA/W-CDMA overlaid systemnotch filtersignal clipper
  Summary |  Full Text:PDF

Iterative Demodulation and Decoding for Parallel Combinatorial SS Systems
Ken-ichi TAKIZAWA  Shigenobu SASAKI  Shogo MURAMATSU  Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 2991-2999
Type of Manuscript: Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrummulti-code CDMAiterative decodingchannel coding
  Summary |  Full Text:PDF

Flexible Zerotree Coding of Wavelet Coefficients
Sanghyun JOO  Hisakazu KIKUCHI  Shigenobu SASAKI  Jaeho SHIN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/06/20
Vol. E82-A  No. 6  pp. 1117-1125
Type of Manuscript: PAPER
Category: Image Theory
Keyword: 
image compressionwavelet transformzerotree coding
  Summary |  Full Text:PDF

A New Image Coding Technique with Low Entropy Using a Flexible Zerotree
Sanghyun JOO  Hisakazu KIKUCHI  Shigenobu SASAKI  Jaeho SHIN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/12/20
Vol. E81-B  No. 12  pp. 2528-2535
Type of Manuscript: PAPER
Category: Source Encoding
Keyword: 
image compressionwavelet transformzerotree codingentropy coding
  Summary |  Full Text:PDF

Error Rate Analysis of Coherent and Differential Multiphase Parallel Combinatorial Spread Spectrum Systems
Shigenobu SASAKI  Hisakazu KIKUCHI  Jinkang ZHU  Gen MARUBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/07/20
Vol. E80-A  No. 7  pp. 1196-1203
Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Network)
Category: 
Keyword: 
spread spectrummulticode systemsmultiphase modulationsymbol error ratebit error rate
  Summary |  Full Text:PDF

FOREWORD
Ryuji KOHNO  Kazuo TSUBOUCHI  Peter JUNG  Masakazu SENGOKU  Tetsushi IKEGAMI  Hisao TACHIKA  Yukitsuna FURUYA  Yoshiharu TOZAWA  Takaaki HASEGAWA  Shigenobu SASAKI  Hiromasa HABUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/20
Vol. E79-A  No. 12  pp. 1927-1929
Type of Manuscript: FOREWORD
Category: 
Keyword: 
  Summary |  Full Text:PDF

Multiple Access Performance of Parallel Combinatory Spread Spectrum Communication Systems in Nonfading and Rayleigh Fading Channels
Shigenobu SASAKI  Hisakazu KIKUCHI  Jinkang ZHU  Gen MARUBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/20
Vol. E78-B  No. 8  pp. 1152-1161
Type of Manuscript: Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
communication theoryradio communicationcode division multiple accessRayleigh fading
  Summary |  Full Text:PDF

Performance of Parallel Combinatory SS Communication Systems in Rayleigh Fading Channel
Shigenobu SASAKI  Hisakazu KIKUCHI   Jinkang ZHU  Gen MARUBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/06/20
Vol. E77-A  No. 6  pp. 1028-1032
Type of Manuscript: Special Section LETTER (Special Section of Papers Selected from 1993 Joint Technical Conference on Circuits/Systems, Computers and Communications (JTC-CSCC'93))
Category: Communications
Keyword: 
spread spectrum technologyRayleigh fadingselection diverstityReed-Solomon codes
  Summary |  Full Text:PDF