Kiyoshi HAMAGUCHI


Numerical Simulations for Wearable BAN Propagation Channel during Various Human Movements
Takahiro AOYAGI Minseok KIM Jun-ichi TAKADA Kiyoshi HAMAGUCHI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/09/01
Vol. E94-B  No. 9  pp. 2496-2500
Type of Manuscript:  Special Section LETTER (Special Section on Information Communication Technology for Highly Reliable Human Health Care Services)
Category: 
Keyword: 
body area networkmedical supporthealthcare serviceelectromagnetic wave propagationdynamic channel model
 Summary | Full Text:PDF(328.6KB)

Performance Evaluation of Wireless Communications for Capsule Endoscopy
Kenichi TAKIZAWA Takahiro AOYAGI Kiyoshi HAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/09/01
Vol. E94-B  No. 9  pp. 2488-2491
Type of Manuscript:  Special Section LETTER (Special Section on Information Communication Technology for Highly Reliable Human Health Care Services)
Category: 
Keyword: 
body area networkscapsule endoscopyreceived signal strength
 Summary | Full Text:PDF(463.6KB)

RF Propagation and Channel Modeling for UWB Wearable Devices
Kamya YEKEH YAZDANDOOST Kamran SAYRAFIAN-POUR Kiyoshi HAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/05/01
Vol. E94-B  No. 5  pp. 1126-1134
Type of Manuscript:  INVITED PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies)
Category: 
Keyword: 
UWB antennaimmersive visualization systemchannel modelbody area network
 Summary | Full Text:PDF(3.6MB)

Development of an Implantable WBAN Path-Loss Model for Capsule Endoscopy
Takahiro AOYAGI Kenichi TAKIZAWA Takehiko KOBAYASHI Jun-ichi TAKADA Kiyoshi HAMAGUCHI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/04/01
Vol. E93-B  No. 4  pp. 846-849
Type of Manuscript:  Special Section LETTER (Special Section on Information and Communication Technology for Wellness and Medical Applications)
Category: 
Keyword: 
wireless body area network (WBAN)implantable WBANcapsule endoscopypath loss model
 Summary | Full Text:PDF(220.9KB)

Development of Ultra-Wideband Short-Range Impulse Radar System for Vehicular Applications
Kiyoshi HAMAGUCHI Hiroyo OGAWA Takehiko KOBAYASHI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/10/01
Vol. E88-C  No. 10  pp. 1922-1931
Type of Manuscript:  INVITED PAPER (Special Section on Recent Technologies on Devices, Circuits, and Systems for Millimeter-wave ITS Applications)
Category: 
Keyword: 
impulse radarultra widebandUWBvehicularsystemlaboratory experimentintelligent transport systemITS
 Summary | Full Text:PDF(2.9MB)

Automatic Threshold Control for ASK Millimeter-Wave Transceivers
Osamu ANEGAWA Kiyoshi HAMAGUCHI Hiroyo OGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 1249-1252
Type of Manuscript:  LETTER
Category: Devices/Circuits for Communications
Keyword: 
automatic-threshold-controlmillimeter wavesamplitude-shift-keying
 Summary | Full Text:PDF(1MB)

Analysis of the Combined Effects of Nonlinear Distortion and Phase Noise on OFDM Systems
Le LIU Kiyoshi HAMAGUCHI Hiromitsu WAKANA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 304-311
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMHPAnonlinear distortionphase noise
 Summary | Full Text:PDF(449.9KB)

A Low-Cost and Stable Millimeter-Wave Transmission System Using a Transmission-Filter-Less Double-Side-Band Millimeter-Wave Self-Heterodyne Transmission Technique
Yozo SHOJI Kiyoshi HAMAGUCHI Hiroyo OGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/06/01
Vol. E86-B  No. 6  pp. 1884-1892
Type of Manuscript:  PAPER
Category: Communication Devices/Circuits
Keyword: 
millimeter-waveself-heterodynedouble-side-bandphase-noisefrequency-offset
 Summary | Full Text:PDF(1.1MB)

Design and Performance of a Millimeter-Wave Video-Transmission System Using 60-GHz Band for Indoor BS Signals Transmission
Kiyoshi HAMAGUCHI Yozo SHOJI Hiroyo OGAWA Yasutake HIRACHI Seiji NISHI Eiichiro KAWAKAMI Eiji SUEMATSU Toshiya IWASAKI Akira AKEYAMA Youichi SHIMOMICHI Takao KIZAWA Ichiro KUWANA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/10/01
Vol. E84-C  No. 10  pp. 1479-1490
Type of Manuscript:  Special Section PAPER (Special Issue on Millimeter-Wave Circuits and Fabrication Technologies Opening up the 21st Century)
Category: 
Keyword: 
millimeter waveBSintermodulationCNRexperiment
 Summary | Full Text:PDF(1.5MB)

A CMA Adaptive Array Antenna System with a Single Receiver Using Time-Division Multiplexing
Eimatsu MORIYAMA Yukiyoshi KAMIO Kiyoshi HAMAGUCHI Hiroshi FURUKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/06/01
Vol. E84-B  No. 6  pp. 1637-1646
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
constant modulus algorithmadaptive arraycochannel interference (CCI)time-division multiplexing
 Summary | Full Text:PDF(652.1KB)

Development of Narrow-Band Digital Land Mobile Radio
Eimatsu MORIYAMA Yukiyoshi KAMIO Kiyoshi HAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/05/25
Vol. E83-B  No. 5  pp. 1094-1105
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
mobile communicationFDMAdigital modulationπ/4 shift QPSK modulation
 Summary | Full Text:PDF(1.4MB)

Transmission Experiments on Slow-FH/16QAM System for Land Mobile Communications
Kiyoshi HAMAGUCHI Eimatsu MORIYAMA Yukiyoshi KAMIO Hideichi SASAOKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1444-1452
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
frequency hoppingQAMinterferenceexperimentland mobile
 Summary | Full Text:PDF(779KB)

Implementation of and Field Experiment on High-Speed Multimedia Multimode TDMA Radio Transmission Systems
Eimatsu MORIYAMA Yukiyoshi KAMIO Kiyoshi HAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1433-1443
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
QPSKQAMland mobile radioTDMAfield experimentDFE
 Summary | Full Text:PDF(1.2MB)

Performance of Multicarrier/QAM-Level-Controlled Adaptive Modulation for Land Mobile Communication Systems
Kiyoshi HAMAGUCHI Eimatsu MORIYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/04/25
Vol. E81-B  No. 4  pp. 770-776
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
multicarrierQAMadaptivetime division duplexland mobile communications
 Summary | Full Text:PDF(588.6KB)