Hideyuki UEHARA


Interference Canceller Based on Cycle-and-Add Property for Single User Detection in DS-CDMA
Ranga HETTIARACHCHI Mitsuo YOKOYAMA Hideyuki UEHARA Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/01/01
Vol. E92-A  No. 1  pp. 298-306
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
DS-CDMAsingle user detectioninterference cancellationmultiple access interference (MAI)PN sequencescycle-and-add propertynear-far problem (NFP)
 Summary | Full Text:PDF(963.9KB)

Interference Cancellation Technique Based on Discovery of Spreading Codes of Interference Signals and Maximum Correlation Detection for DS-CDMA System
Ranga HETTIARACHCHI Mitsuo YOKOYAMA Hideyuki UEHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3335-3345
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
DS-CDMAmultiple access interference (MAI)near-far problem (NFP)spreading codemaximum correlation detection
 Summary | Full Text:PDF(567.7KB)

Efficient Clustering Scheme Considering Non-uniform Correlation Distribution for Ubiquitous Sensor Networks
Daisuke MAEDA Hideyuki UEHARA Mitsuo YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1344-1352
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
wireless sensor networksenergy efficiencyhierarchical routingentropy and coding
 Summary | Full Text:PDF(561.7KB)

Electron Transfer Mediated Biosensor with Plasma-Polymerized Film Containing Redox Site
Hitoshi MUGURUMA Hideyuki UEHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/12/01
Vol. E89-C  No. 12  pp. 1781-1785
Type of Manuscript:  Special Section PAPER (Special Section on Towards the Realization of Organic Molecular Electronics)
Category: Bioelectronics and Sensors
Keyword: 
glucose biosensorelectron transfer mediatorplasma polymerizationferroceneenzyme
 Summary | Full Text:PDF(1.1MB)

Performance Improvement of MAI Cancellation in Fading DS/CDMA Channels
Kilsoo JEONG Mitsuo YOKOYAMA Hideyuki UEHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2869-2877
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
asynchronous DS/CDMAsingle-user strategyadaptive receivermodified MMSE
 Summary | Full Text:PDF(906.1KB)

Route Selection Metrics in Wireless Mobile Ad Hoc Networks
Md. Ifte Khairul HASAN Saburo TAKAHASHI Jun-ichi HAKODA Hideyuki UEHARA Mitsuo YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2952-2955
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
ad hoc networklink expiration timebusy rateroute selection metric
 Summary | Full Text:PDF(130.2KB)

Performance of a New DS-CDMA Synchronization System Using Cycle-and-Add Property
Yoshikazu YAMAGUCHI Shinji YAMASHITA Mitsuo YOKOYAMA Hideyuki UEHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2905-2914
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
DS-CDMAPN sequenceCycle-and-Add propertydetection probability of synchronization
 Summary | Full Text:PDF(533.4KB)

A New OFDM Demodulation Method with Variable-Length Effective Symbol and ICI Canceller
Noriyoshi SUZUKI Hideyuki UEHARA Mitsuo YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12  pp. 2859-2867
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
multi-carrier modulationorthogonal frequency division multiplexing (OFDM)multipath fadingICI cancellerguard interval
 Summary | Full Text:PDF(931.8KB)

Channel Assignment Scheme for Integrated Voice and Data Traffic in Reservation-Type Packet Radio Networks
Hideyuki UEHARA Masato FUJIHARA Mitsuo YOKOYAMA Hiro ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/01/01
Vol. E85-B  No. 1  pp. 191-198
Type of Manuscript:  Special Section PAPER (Special Issue on Internet Technology II -- Traffic Control and Performance Evaluation in the Internet)
Category: 
Keyword: 
wireless networkMAC protocolchannel assignmentvoice/data traffic
 Summary | Full Text:PDF(518KB)

A Generalization of 2-Dimension Ham Sandwich Theorem
Hiro ITO Hideyuki UEHARA Mitsuo YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/05/01
Vol. E84-A  No. 5  pp. 1144-1151
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
Ham Sandwich Theoremplanepartitionconvex
 Summary | Full Text:PDF(406.7KB)

A Faster and Flexible Algorithm for a Location Problem on Undirected Flow Networks
Hiro ITO Hideyuki UEHARA Mitsuo YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/04/25
Vol. E83-A  No. 4  pp. 704-712
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
graphnetwork flowlocation problemnode subsetpolynomial timealgorithm
 Summary | Full Text:PDF(558.8KB)

NP-Hardness of Rotation Type Cell-Mazes
Shiro AOKI Hiro ITO Hideyuki UEHARA Mitsuo YOKOYAMA Tsuyoshi HORINOUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/03/25
Vol. E83-A  No. 3  pp. 492-496
Type of Manuscript:  Special Section LETTER (Special Section of Selected Papers from the 12th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
puzzlemazecomputational complexityNP-hardpolynomial-time
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Performance Analysis of Optical Frequency-Domain Encoding CDMA Enhancement of Frequency Division Multiplexing
Katsuhiro KAMAKURA Yoshinobu GAMACHI Hideyuki UEHARA Tomoaki OHTSUKI Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/09/25
Vol. E81-B  No. 9  pp. 1749-1757
Type of Manuscript:  PAPER
Category: Optical Communication
Keyword: 
FE-CDMAFDMspatial filterphase maskultrashort light pulsemulti-access interference (MAI)
 Summary | Full Text:PDF(841.8KB)

Fiber Optic Subcarrier Transmission Systems Using Coherence Multiplexing Techniques for Broad-Band Distribution Networks
Hideyuki UEHARA Iwao SASASE Mitsuo YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/07/25
Vol. E80-B  No. 7  pp. 1027-1034
Type of Manuscript:  PAPER
Category: Optical Communication
Keyword: 
SCMcoherence multiplexingIMDFM demodulationbroad-band distribution network
 Summary | Full Text:PDF(665.1KB)

Performance Analysis of Optical Synchronous PPM/CDMA Systems with Interference Canceller Under Number-State Light Field
Yoshinobu GAMACHI Tomoaki OHTSUKI Hideyuki UEHARA Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/07/25
Vol. E79-B  No. 7  pp. 915-922
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Access Networks toward Life Enhancement)
Category: 
Keyword: 
interferenceinterference cancellerPPMsynchronous CDMA
 Summary | Full Text:PDF(712KB)

Coherence Multiplexed/Subcarrier Multiplexing (CM/SCM) Lightwave System For Microcelluler Mobile Communications
Hideyuki UEHARA Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/05/25
Vol. E79-B  No. 5  pp. 708-715
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
SCMcoherence multiplexingIMDinterference noiseoptical amplifier
 Summary | Full Text:PDF(707.8KB)

Performance Analysis of Coherent Optical POLSK Receives with Local Oscillator Intensity Noise and Unmatched Quantum Efficiencies
Hideyuki UEHARA Tomoaki OHTSUKI Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/12/25
Vol. E77-B  No. 12  pp. 1590-1599
Type of Manuscript:  PAPER
Category: Optical Communication
Keyword: 
coherentPOLSKphase noiseintensity noisequantum efficiencies
 Summary | Full Text:PDF(704.1KB)