Kentaro NISHIMORI


Multi-Beam Massive MIMO Using Constant Modulus Algorithm for QAM Signals Employing Amplitude and Phase Offset Compensation
Ryotaro TANIGUCHI Kentaro NISHIMORI Hideo MAKINO 
Publication:   
Publication Date: 2017/02/01
Vol. E100-B  No. 2  pp. 262-268
Type of Manuscript:  Special Section PAPER (Special Section on Antenna and Propagation Technologies Contributing to Realization of Next Generation Wireless Systems)
Category: 
Keyword: 
massive MIMOmulti-beamconstant modulus algorithmquadrature amplitude and phase modulation
 Summary | Full Text:PDF(1.1MB)

A Novel Collision Avoidance Scheme Using Optimized Contention Window in Dense Wireless LAN Environments
Yoshiaki MORINO Takefumi HIRAGURI Hideaki YOSHINO Kentaro NISHIMORI Takahiro MATSUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/11/01
Vol. E99-B  No. 11  pp. 2426-2434
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
IEEE802.11 MACcontention windowtransmission efficiency
 Summary | Full Text:PDF(1.5MB)

Simultaneous Decoupling and Matching Technique for Short-Range MIMO
Kentaro MURATA Naoki HONMA Kentaro NISHIMORI Naobumi MICHISHITA Hisashi MORISHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/08/01
Vol. E99-B  No. 8  pp. 1846-1858
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
short-range MIMOdecoupling and matching network
 Summary | Full Text:PDF(1.9MB)

Four-Stream Parallel Transmission for Short-Range MIMO Using Only Passive Analog Components
Kentaro MURATA Naoki HONMA Kentaro NISHIMORI David M. KLYMYSHYN Hisashi MORISHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/01/01
Vol. E99-B  No. 1  pp. 69-80
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014)
Category: Antennas and Propagation
Keyword: 
short-range MIMOeigenmode transmission180-degree hybrid coupler
 Summary | Full Text:PDF(6.6MB)

FFT-Based Block Diagonalization at User Terminal for Implicit Beamforming in Multiuser MIMO System
Hayate KIMOTO Kentaro NISHIMORI Takefumi HIRAGURI Hideo MAKINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/01/01
Vol. E99-B  No. 1  pp. 115-123
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014)
Category: Antennas and Propagation
Keyword: 
multiuser MIMOblock diagonalizationFFTimplicit beamformingIEEE802.11aceigenvalue
 Summary | Full Text:PDF(2.2MB)

Estimating Living-Body Location Using Bistatic MIMO Radar in Multi-Path Environment
Keita KONNO Naoki HONMA Dai SASAKAWA Kentaro NISHIMORI Nobuyasu TAKEMURA Tsutomu MITSUI Yoshitaka TSUNEKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/11/01
Vol. E98-B  No. 11  pp. 2314-2321
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
MIMOliving-body locationDOA estimationmicrowave sensorarray antenna
 Summary | Full Text:PDF(4.3MB)

Interference Reduction Characteristics by Circular Array Based Massive MIMO in a Real Microcell Environment
Ryochi KATAOKA Kentaro NISHIMORI Ngochao TRAN Tetsuro IMAI Hideo MAKINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1447-1455
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
massive MIMOcircular arraymicrocellmaximum ratio combiningzero forcingchannel sounder
 Summary | Full Text:PDF(4.8MB)

Survey of Transmission Methods and Efficiency Using MIMO Technologies for Wireless LAN Systems
Takefumi HIRAGURI Kentaro NISHIMORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1250-1267
Type of Manuscript:  INVITED SURVEY PAPER
Category: 
Keyword: 
MIMOMU-MIMOtransmission efficiencyoverheadaccess controlMAC protocolCSI feedbackimplicit beamformingPHY
 Summary | Full Text:PDF(2.4MB)

Interference Suppression Method between Primary Broadcasting and Secondary Systems Using Load Modulation
Takuma ITO Naoki HONMA Keisuke TERASAKI Kentaro NISHIMORI Yoshitaka TSUNEKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/05/01
Vol. E98-B  No. 5  pp. 861-869
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
load modulationfrequency sharinginterference controlchannel capacity
 Summary | Full Text:PDF(2.1MB)

Multicast Transmission Access Control Methods for Various Wireless LAN Applications
Toshiyuki OGAWA Takefumi HIRAGURI Kentaro NISHIMORI Hideaki YOSHINO Kenya JIN'NO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/11/01
Vol. E97-B  No. 11  pp. 2534-2542
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
Interference wavemulticast transmissionpacket collisionpacket lossWLAN
 Summary | Full Text:PDF(2.2MB)

Transmission Rate by User Antenna Selection for Block Diagonalization Based Multiuser MIMO System
Kentaro NISHIMORI Takefumi HIRAGURI Hideo MAKINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2118-2126
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Measurement and Design Techniques on Antennas, Propagation and Wireless Systems)
Category: 
Keyword: 
multiuser MIMOblock diagonalizationuser antenna selectionIEEE802.11aceigenvalue
 Summary | Full Text:PDF(1.8MB)

Channel Estimation Method Using Arbitrary Amplitude and Phase Modulation Schemes for MIMO Sensor
Tsubasa TASHIRO Kentaro NISHIMORI Tsutomu MITSUI Nobuyasu TAKEMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2102-2109
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Measurement and Design Techniques on Antennas, Propagation and Wireless Systems)
Category: 
Keyword: 
MIMO sensorfrequency offsettiming offsetroll-off filterquadrature amplitude modulation
 Summary | Full Text:PDF(3.1MB)

Analog Decoding Method for Simplified Short-Range MIMO Transmission
Ryochi KATAOKA Kentaro NISHIMORI Takefumi HIRAGURI Naoki HONMA Tomohiro SEKI Ken HIRAGA Hideo MAKINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/03/01
Vol. E97-B  No. 3  pp. 620-630
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
short-range MIMO transmissionzero forcingunitary matrix90-degree phase shifteroptimal element spacing
 Summary | Full Text:PDF(2.4MB)

A Study of Short-Range MIMO Transmission Utilizing Polarization Multiplexing for the Simplification of Decoding
Ken HIRAGA Kazumitsu SAKAMOTO Kentaro NISHIMORI Tomohiro SEKI Tadao NAKAGAWA Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 459-468
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
short-rangeMIMOpolarization multiplexingXPDantennasdecoding
 Summary | Full Text:PDF(1.9MB)

Compact Antenna Arrangement for MIMO Sensor in Indoor Environment
Naoki HONMA Kentaro NISHIMORI Hiroaki SATO Yoshitaka TSUNEKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/10/01
Vol. E96-B  No. 10  pp. 2491-2498
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012)
Category: Adaptive Array Antennas/MIMO
Keyword: 
MIMO sensorantennaelement spacing
 Summary | Full Text:PDF(2.5MB)

Intruder Detection Performance of SIMO and MIMO Sensors with Same Number of Channel Responses
Keita USHIKI Kentaro NISHIMORI Naoki HONMA Hideo MAKINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/10/01
Vol. E96-B  No. 10  pp. 2499-2505
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012)
Category: Adaptive Array Antennas/MIMO
Keyword: 
MIMO SensorSISO sensortime variant channelchannel matrix
 Summary | Full Text:PDF(1.6MB)

Non-iterative Algorithm of MIMO Adaptive Array Based on Correlation Matrix Including Parasitic Antennas
Naoki HONMA Kentaro NISHIMORI Takefumi HIRAGURI Yoshitaka TSUNEKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/07/01
Vol. E96-B  No. 7  pp. 1945-1952
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
adaptive arraytunable reactance deviceMIMOcorrelation matrix
 Summary | Full Text:PDF(1.5MB)

Interference Rejection Characteristics by Adaptive Array at User Equipment Using Measured K-Factor in Heterogeneous Networks
Kentaro NISHIMORI Keisuke KUSUMI Misaki HORIO Koshiro KITAO Tetsuro IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1256-1264
Type of Manuscript:  Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)
Category: 
Keyword: 
heterogeneous networksadaptive arrayuser equipmentK-factorzero forcing
 Summary | Full Text:PDF(1.9MB)

User-Oriented QoS Control Method Based on CSMA/CA for IEEE802.11 Wireless LAN System
Akira KISHIDA Masashi IWABUCHI Toshiyuki SHINTAKU Tetsu SAKATA Takefumi HIRAGURI Kentaro NISHIMORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/02/01
Vol. E96-B  No. 2  pp. 419-429
Type of Manuscript:  Special Section PAPER (Special Section on Quality of Communication Services Improving Quality of Life)
Category: 
Keyword: 
user-orientedQoSfixed backoffCSMA/CAIEEE802.11
 Summary | Full Text:PDF(3.1MB)

Effectiveness of Short-Range MIMO Using Dual-Polarized Antenna
Ken HIRAGA Tomohiro SEKI Kentaro NISHIMORI Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 87-96
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010)
Category: Radio Systems
Keyword: 
short-range MIMOdual-polarizationarray antennasparallel transmissionhigh-speed transmission
 Summary | Full Text:PDF(2.1MB)

Single Antenna Relay System Using De-Noise and Forward Scheme for MIMO Transmission
Kosuke KINAMI Naoki HONMA Kentaro NISHIMORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 113-115
Type of Manuscript:  Special Section LETTER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010)
Category: Radio Systems
Keyword: 
MIMORelayDNF
 Summary | Full Text:PDF(435.8KB)

Analyses of Antenna Displacement in Short-Range MIMO Transmission over Millimeter-Wave
Ken HIRAGA Tomohiro SEKI Kentaro NISHIMORI Kenjiro NISHIKAWA Ichihiko TOYODA Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/10/01
Vol. E94-B  No. 10  pp. 2891-2895
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
short-rangeMIMOmillimeter-waveantennasparallel transmission
 Summary | Full Text:PDF(667.6KB)

Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models
Kentaro NISHIMORI Rocco DI TARANTO Hiroyuki YOMO Petar POPOVSKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/05/01
Vol. E94-B  No. 5  pp. 1243-1253
Type of Manuscript:  Special Section PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies)
Category: Radio System
Keyword: 
cognitive radiospatial opportunitydirectional antennaheterogeneous propagation path loss conditionstarget CIRantenna height
 Summary | Full Text:PDF(1.9MB)

Development of Multi Channel Ad-Hoc Network System
Kentaro NISHIMORI Takefumi HIRAGURI Masakatsu OGAWA Naoki HONMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/03/01
Vol. E94-B  No. 3  pp. 667-675
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technologies for Next-generation Mobile Multimedia Life)
Category: 
Keyword: 
ad-hoc networksvertical antenna arrangementdistributed channel allocationmulti channels
 Summary | Full Text:PDF(1.4MB)

Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment
Masakatsu OGAWA Takefumi HIRAGURI Kentaro NISHIMORI Naoki HONMA Kazuhiro TAKAYA Kazuo MURAKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/03/01
Vol. E94-B  No. 3  pp. 658-666
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technologies for Next-generation Mobile Multimedia Life)
Category: 
Keyword: 
IEEE802.11power savingportable access pointoverlapping BSS
 Summary | Full Text:PDF(2.2MB)

A Stochastic Approach to Design MIMO Antenna with Parasitic Elements Based on Propagation Characteristics
Naoki HONMA Kentaro NISHIMORI Riichi KUDO Yasushi TAKATORI Takefumi HIRAGURI Masato MIZOGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/10/01
Vol. E93-B  No. 10  pp. 2578-2585
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Technologies in Antennas and Propagation in Conjunction with Main Topics of ISAP2009)
Category: Antennas
Keyword: 
MIMOparasitic antennasmobile antennasYagi-Uda arrays
 Summary | Full Text:PDF(1.9MB)

Transmission History Based Distributed Adaptive Contention Window Adjustment Algorithm Cooperating with Automatic Rate Fallback for Wireless LANs
Masakatsu OGAWA Takefumi HIRAGURI Kentaro NISHIMORI Kazuhiro TAKAYA Kazuo MURAKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 2063-2072
Type of Manuscript:  Special Section PAPER (Special Section on Implementation, Experiments, and Practice for Ad Hoc and Mesh Networks)
Category: 
Keyword: 
IEEE 802.11CSMA/CAcontention window adjustmentautomatic rate fallback
 Summary | Full Text:PDF(1.2MB)

A Novel Interference Avoidance Technique on Mobile Wireless Routers Using IEEE802.11n PSMP
Akira KISHIDA Takefumi HIRAGURI Masakatsu OGAWA Kentaro NISHIMORI Naoki HONMA Tetsu SAKATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 2053-2062
Type of Manuscript:  Special Section PAPER (Special Section on Implementation, Experiments, and Practice for Ad Hoc and Mesh Networks)
Category: 
Keyword: 
IEEE802.11nIEEE802.16emutual system interferencePSMPwireless relay
 Summary | Full Text:PDF(2.2MB)

1616 MIMO Testbed for MU-MIMO Downlink Transmission
Kentaro NISHIMORI Riichi KUDO Naoki HONMA Yasushi TAKATORI Masato MIZOGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/02/01
Vol. E93-B  No. 2  pp. 345-352
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multiuser MIMOadaptive modulation schemeOFDMeigenvaluebit interleaver
 Summary | Full Text:PDF(697.5KB)

A New User Selection Measure in Block Diagonalization Algorithm for Multiuser MIMO Systems
Riichi KUDO Yasushi TAKATORI Kentaro NISHIMORI Atsushi OHTA Shuji KUBOTA Masato MIZOGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/10/01
Vol. E92-B  No. 10  pp. 3206-3218
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multiuser MIMOuser selectionblock diagonalizationchannel capacity
 Summary | Full Text:PDF(2.1MB)

Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems
Koichi ISHIHARA Yasushi TAKATORI Kentaro NISHIMORI Kazuyasu OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1582-1588
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
multiuser MIMO (MU-MIMO)multiuser detection (MUD)OFDMuplinktiming offsetinter-block interference (IBI)
 Summary | Full Text:PDF(1MB)

Antenna Selection Method for Terminal Antennas Employing Orthogonal Polarizations and Patterns in Outdoor Multiuser MIMO System
Naoki HONMA Riichi KUDO Kentaro NISHIMORI Yasushi TAKATORI Atsushi OHTA Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/06/01
Vol. E91-B  No. 6  pp. 1752-1759
Type of Manuscript:  Special Section PAPER (Special Section on 2007 International Symposium on Antennas and Propagation)
Category: Smart Antennas & MIMO
Keyword: 
MIMOmultiuserurban environmentpolarizationpatternantenna selection
 Summary | Full Text:PDF(1.2MB)

New Robust Beamforming Method for Frequency Offsets in Uplink Multiuser OFDM-MIMO
Yasushi TAKATORI Riichi KUDO Atsushi OHTA Koichi ISHIHARA Kentaro NISHIMORI Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2312-2320
Type of Manuscript:  Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation)
Category: Smart Antennas
Keyword: 
multiuser MIMOuplinkbeamformingfrequency offset
 Summary | Full Text:PDF(782.4KB)

New Downlink Beamforming Method for Cooperative Multiple Access Point Systems
Riichi KUDO Yasushi TAKATORI Kentaro NISHIMORI Atsushi OHTA Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2303-2311
Type of Manuscript:  Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation)
Category: Smart Antennas
Keyword: 
MIMOdownlinkbeamformingmultiple access point system
 Summary | Full Text:PDF(1.7MB)

Novel Downlink Beamforming Method Using Selective STBC with Common Eigenvectors for MIMO-OFDM Systems
Riichi KUDO Yasushi TAKATORI Kentaro NISHIMORI Koichi TSUNEKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/08/01
Vol. E89-B  No. 8  pp. 2170-2179
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMOeigenvectorOFDMachievable spectrum efficiencySTBCbeamformingmaximum Doppler frequencyfeedback overhead
 Summary | Full Text:PDF(1.4MB)

Frequency Correlation Characteristics Due to Antenna Configurations in Broadband MIMO Transmission
Kentaro NISHIMORI Nobuhiko TACHIKAWA Yasushi TAKATORI Riichi KUDO Koichi TSUNEKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/06/01
Vol. E88-B  No. 6  pp. 2438-2445
Type of Manuscript:  Special Section PAPER (Special Section on 2004 International Symposium on Antennas and Propagation)
Category: 
Keyword: 
MIMOfrequency correlationantenna arrangementOFDMdelay signalsangular spread
 Summary | Full Text:PDF(2.1MB)

Adaptive Base Station Antenna Configuration Suitable for Street Microcells Considering Propagation Environment
Keizo CHO Kentaro NISHIMORI Toshikazu HORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 435-442
Type of Manuscript:  PAPER
Category: Antenna and Propagation
Keyword: 
adaptive antennastreet microcellbase station antennaelement arrangementangle of arrival of delayed waves
 Summary | Full Text:PDF(775.8KB)

A Novel Configuration for Realizing Automatic Calibration of Adaptive Array Using Dispersed SPDT Switches for TDD Systems
Kentaro NISHIMORI Keizo CHO Yasushi TAKATORI Toshikazu HORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2516-2522
Type of Manuscript:  Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Adaptive Antennas
Keyword: 
adaptive arrayTDD systemsdispersed switchesautomatic calibration method
 Summary | Full Text:PDF(268.6KB)

Adaptive Array for Reducing High-Power CCI on Asynchronous TDD Systems
Kentaro NISHIMORI Keizo CHO Yasushi TAKATORI Toshikazu HORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1727-1734
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
Category: Adaptive Algorithms and Experiments
Keyword: 
adaptive arrayasynchronous TDD systemspower inversionMMSEguard time
 Summary | Full Text:PDF(1.4MB)

Adaptive Array Employing Eigenvector Beam of Maximum Eigenvalue and Fractionally-Spaced TDL with Real Tap
Yasushi TAKATORI Keizo CHO Kentaro NISHIMORI Toshikazu HORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8  pp. 1678-1687
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
adaptive arraydigital beamformingeigenvector beamhigh-speed wireless accessfractionally-spaced-tapped-delay-line
 Summary | Full Text:PDF(1.3MB)

Two Base Station Configuration Using an Adaptive Array at Elevated Locations for Microcell Systems
Kentaro NISHIMORI Keizo CHO Yasushi TAKATORI Toshikazu HORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8  pp. 1688-1696
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
adaptive arrayelevated base stationco-channel interferencemicrocellelement spacing
 Summary | Full Text:PDF(439.6KB)

The Differential CMA Adaptive Array Antenna Using an Eigen-Beamspace System
Kentaro NISHIMORI Nobuyoshi KIKUMA Naoki INAGAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/11/25
Vol. E78-B  No. 11  pp. 1480-1488
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Signal Processing Technology in Antennas)
Category: 
Keyword: 
adaptive arraydifferential CMAeigen-beamspace systemmobile communicationMarquardt methodsteepest descent method
 Summary | Full Text:PDF(659.7KB)