Hideyuki TORII


Modified Mutually ZCZ Set of Optical Orthogonal Sequences
Takahiro MATSUMOTO Hideyuki TORII Yuta IDA Shinya MATSUFUJI 
Publication:   
Publication Date: 2018/12/01
Vol. E101-A  No. 12  pp. 2415-2418
Type of Manuscript:  Special Section LETTER (Special Section on Signal Design and Its Applications in Communications)
Category: Spread Spectrum Technologies and Applications
Keyword: 
optical zero-correlation zone (ZCZ) sequencemutually zero-correlation zone setoptical code-division multiple access (OCDMA)
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A Compact Matched Filter Bank for an Optical ZCZ Sequence Set with Zero-Correlation Zone 2z
Yasuaki OHIRA Takahiro MATSUMOTO Hideyuki TORII Yuta IDA Shinya MATSUFUJI 
Publication:   
Publication Date: 2018/01/01
Vol. E101-A  No. 1  pp. 195-198
Type of Manuscript:  Special Section LETTER (Special Section on Wideband Systems)
Category: 
Keyword: 
optical communicationoptical M-ary spread spectrum (M-ary/SS) systemoptical zero-correlation zone (ZCZ) sequencematched filter bank (MFB)field-programmable gate array (FPGA)
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BER Performance of SS System Using a Huffman Sequence against CW Jamming
Takahiro MATSUMOTO Hideyuki TORII Yuta IDA Shinya MATSUFUJI 
Publication:   
Publication Date: 2018/01/01
Vol. E101-A  No. 1  pp. 167-175
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
spread-spectrum (SS) systemfinite-length sequenceHuffman sequenceintersymbol interference (ISI)continuous wave interference (CWI)additive white Gaussian noise (AWGN)
 Summary | Full Text:PDF(1.1MB)

Number of Detectable Gradations in X-Ray Photographs of Cavities Inside 3-D Printed Objects
Masahiro SUZUKI Piyarat SILAPASUPHAKORNWONG Youichi TAKASHIMA Hideyuki TORII Kazutake UEHIRA 
Publication:   
Publication Date: 2017/06/01
Vol. E100-D  No. 6  pp. 1364-1367
Type of Manuscript:  LETTER
Category: Information Network
Keyword: 
digital fabrication3-D printing3-D printercopyright protectiondigital watermarking
 Summary | Full Text:PDF(773KB)

A Compact Matched Filter Bank for a Mutually Orthogonal ZCZ Sequence Set Consisting of Ternary Sequence Pairs
Takahiro MATSUMOTO Hideyuki TORII Yuta IDA Shinya MATSUFUJI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/12/01
Vol. E97-A  No. 12  pp. 2595-2600
Type of Manuscript:  Special Section LETTER (Special Section on Signal Design and Its Applications in Communications)
Category: Sequences
Keyword: 
Hadamard sequencezero-correlation zone (ZCZ) sequencemutually orthogonal setmatched filter bankfield-programmable gate array (FPGA)
 Summary | Full Text:PDF(849.4KB)

Extension of Methods for Constructing Polyphase Asymmetric ZCZ Sequence Sets
Hideyuki TORII Takahiro MATSUMOTO Makoto NAKAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/11/01
Vol. E96-A  No. 11  pp. 2244-2252
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
asymmetric ZCZ sequence setsoptimal ZCZ sequence setsquasi-optimal ZCZ sequence setsAS-CDMAspreading sequences
 Summary | Full Text:PDF(325KB)

Zero-Cross-Correlation Properties of Asymmetric ZCZ Sequence Sets
Kosuke OMATA Hideyuki TORII Takahiro MATSUMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/11/01
Vol. E95-A  No. 11  pp. 1926-1930
Type of Manuscript:  Special Section LETTER (Special Section on Signal Design and Its Applications in Communications)
Category: Sequences
Keyword: 
asymmetric ZCZ sequence setszero-cross-correlation zoneAS-CDMAZCZ sequence setsspreading sequences
 Summary | Full Text:PDF(84.7KB)

A New Method for Constructing Asymmetric ZCZ Sequence Sets
Hideyuki TORII Takahiro MATSUMOTO Makoto NAKAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/09/01
Vol. E95-A  No. 9  pp. 1577-1586
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
asymmetric ZCZ sequence setsquasi-optimal ZCZ sequence setsAS-CDMAspreading sequencesspread spectrum communication
 Summary | Full Text:PDF(335.3KB)

Enhancement of ZCZ Sequence Set Construction Procedure
Hideyuki TORII Makoto NAKAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2  pp. 535-538
Type of Manuscript:  LETTER
Category: Spread Spectrum Technologies and Applications
Keyword: 
ZCZ sequence setspolyphase sequencesperfect sequencesunitary matricesapproximately synchronized CDMA
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A New Class of Polyphase Sequence Sets with Optimal Zero-Correlation Zones
Hideyuki TORII Makoto NAKAMURA Naoki SUEHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1987-1994
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
ZCZ sequence setspolyphase sequencesspreading sequencesspread spectrum communicationapproximately synchronized CDMA
 Summary | Full Text:PDF(163.6KB)

Inter-Cell Interference of Approximately Synchronized CDMA Systems in Asynchronous Condition
Hideyuki TORII Makoto NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/05/01
Vol. E87-B  No. 5  pp. 1318-1327
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
approximately synchronized CDMA (AS-CDMA)complete complementary codescross-correlation propertyinter-cell interferenceZCZ sequences
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A New Method for Constructing Modulatable Complete Complementary Codes
Hideyuki TORII Makoto NAKAMURA Naoki SUEHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/09/01
Vol. E86-A  No. 9  pp. 2388-2395
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
modulatable complete complementary codes (MCC codes)complementary codesspreading sequencesM-ary CDMA systems
 Summary | Full Text:PDF(247.6KB)

Effectiveness of Power Control for Approximately Synchronized CDMA System
Satoshi WAKOH Hideyuki TORII Makoto NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 88-95
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
approximately synchronized CDMA systemcomplete complementary codeinter-cell interferencetransmission power control
 Summary | Full Text:PDF(372.5KB)

Expansion of Modulation for Modulatable Orthogonal Sequences
Hideyuki TORII Naoki SUEHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/12/25
Vol. E82-A  No. 12  pp. 2758-2764
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
Frank sequencesmodulatable orthogonal sequencesN-phase orthogonal sequences
 Summary | Full Text:PDF(276.4KB)