Ryuji KOHNO


Interference Cancellation for Intra and Inter UWB Systems Using Modified Hermite Polynomials Based Orthogonal Matched Filter
Takumi KOBAYASHI Chika SUGIMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/03/01
Vol. E99-B  No. 3  pp. 569-577
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technology for Healthcare and Medical Applications in Conjunction with Main Topics of ISMICT2015)
Category: 
Keyword: 
UWBinterference cancellationmodified Hermite pulseorthogonal matched filter
 Summary | Full Text:PDF(1.4MB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/04/01
Vol. E98-B  No. 4  pp. 525-525
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(233.1KB)

Nonlinear Acoustic Echo Suppression Based on Spectrum Selection Using the Amount of Linear Echo Cancellation
Takashi SUDO Hirokazu TANAKA Chika SUGIMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/11/01
Vol. E97-A  No. 11  pp. 2139-2146
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: 
Keyword: 
echo suppressionnonlinear echospectrum selectionecho-path variation
 Summary | Full Text:PDF(8.8MB)

A Study on Objective Quality Measure for Bandwidth-Extended Speech in Mobile Voice Communications
Takashi SUDO Hirokazu TANAKA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/03/01
Vol. E97-A  No. 3  pp. 792-799
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
bandwidth-extended speechpseudo MOSPESQspectral-distortion
 Summary | Full Text:PDF(935.5KB)

Multiplexing and Error Control Scheme for Body Area Network Employing IEEE 802.15.6
Kento TAKABAYASHI Hirokazu TANAKA Chika SUGIMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/03/01
Vol. E97-B  No. 3  pp. 564-570
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technology for Medical and Healthcare Applications in Conjunction with Main Topics of ISMICT2013)
Category: 
Keyword: 
IEEE802.15.6QoS controlMultiplexingHybrid ARQDecomposable codeUWB
 Summary | Full Text:PDF(1.5MB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/04/01
Vol. E95-A  No. 4  pp. 679-679
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(103.6KB)

Single-Carrier Transmission Using Overlap Frequency Domain Equalizing and Coherent Averaging
Shinichiro MIYAZAKI Shoichiro YAMASAKI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/11/01
Vol. E94-A  No. 11  pp. 2169-2177
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory and Signals
Keyword: 
single-carrier transmissionfrequency-domain equalizationmultipath channel
 Summary | Full Text:PDF(1.9MB)

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)

Combined Trellis Precoding and Error Correcting Codes in Multi-User MIMO-OFDM Systems
Tsuguhide AOKI Hideki OCHIAI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/12/01
Vol. E93-A  No. 12  pp. 2663-2671
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
nonlinear precodingmulti-user MIMOtrellis precodingtrellis shapingOFDM
 Summary | Full Text:PDF(983.5KB)

Optimizing Position of Repeaters in Distributed MIMO Repeater System for Large Capacity
Pham Thanh HIEP Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3616-3623
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
distributed systemMIMO repeateroptimization distanceupper bound channel capacity
 Summary | Full Text:PDF(531.8KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/04/01
Vol. E93-B  No. 4  pp. 795-795
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(68.5KB)

Hybrid ARQ Error-Controlling Scheme for Robust and Efficient Transmission of UWB Body Area Networks
Haruka SUZUKI Marco HERNANDEZ Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/04/01
Vol. E93-B  No. 4  pp. 826-832
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technology for Wellness and Medical Applications)
Category: 
Keyword: 
type-II hybrid ARQbody area network (BAN)rate compatible punctured convolutional code (RCPC)Reed Solomon (RS) invertible codesIEEE802.15.6ultra wide band (UWB)
 Summary | Full Text:PDF(1MB)

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)

Channel Model on Various Frequency Bands for Wearable Body Area Network
Norihiko KATAYAMA Kenichi TAKIZAWA Takahiro AOYAGI Jun-ichi TAKADA Huan-Bang LI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 418-424
Type of Manuscript:  Special Section PAPER (Special Section on Medical Information and Communications Technologies)
Category: 
Keyword: 
body area network (BAN)wearable BAN channel modelpath loss model
 Summary | Full Text:PDF(1.3MB)

Exploitation of Wireless Technology in Remote Care Processes
Matti HAMALAINEN Attaphongse TAPARUGSSANAGORN Jari IINATTI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 373-378
Type of Manuscript:  INVITED PAPER (Special Section on Medical Information and Communications Technologies)
Category: 
Keyword: 
agingremote careUWBWBAN
 Summary | Full Text:PDF(1.2MB)

Standardization for Body Area Networks
Arthur W. ASTRIN Huan-Bang LI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 366-372
Type of Manuscript:  INVITED PAPER (Special Section on Medical Information and Communications Technologies)
Category: 
Keyword: 
IEEE 802.15body area networks (BAN)medical and healthcare serviceswearable BANimplant BAN
 Summary | Full Text:PDF(1.1MB)

Body Implanted Medical Device Communications
Kamya Yekeh YAZDANDOOST Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 410-417
Type of Manuscript:  Special Section PAPER (Special Section on Medical Information and Communications Technologies)
Category: 
Keyword: 
implant antennamedical implant devicein-body communicationshuman body and radio frequencySAR
 Summary | Full Text:PDF(514.4KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 365-365
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(55.7KB)

Position Estimation Method of Medical Implanted Devices Using Estimation of Propagation Velocity inside Human Body
Makoto KAWASAKI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 403-409
Type of Manuscript:  Special Section PAPER (Special Section on Medical Information and Communications Technologies)
Category: 
Keyword: 
medical implanted deviceposition estimationinside human bodyultra widebandpropagation velocity
 Summary | Full Text:PDF(473.8KB)

Reservation-Based Dynamic TDMA Protocol for Medical Body Area Networks
Changle LI Huan-Bang LI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 387-395
Type of Manuscript:  Special Section PAPER (Special Section on Medical Information and Communications Technologies)
Category: 
Keyword: 
MBANDTDMAIEEE 802.15.4dependabilitypower efficiency
 Summary | Full Text:PDF(776.3KB)

An Adaptive Superframe Structure Algorithm for IEEE 802.15.4 WPANs
Changle LI Huan-Bang LI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/12/01
Vol. E91-B  No. 12  pp. 4006-4008
Type of Manuscript:  LETTER
Category: Network
Keyword: 
IEEE 802.15.4WPANsuperframeduty cycle
 Summary | Full Text:PDF(192.8KB)

Cumulative Decision Feedback Technique for Energy Constrained Wireless Sensor Networks
Gabriel PORTO VILLARDI Giuseppe THADEU FREITAS DE ABREU Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/11/01
Vol. E91-B  No. 11  pp. 3768-3774
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
sensor networksdecision feedbackFECpacket combiningenergy efficiency
 Summary | Full Text:PDF(191KB)

Cyclic Prefix Signaling for Pulse Shape Modulation UWB RAKE Receivers
Alex CARTAGENA GORDILLO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3163-3172
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
UWBcyclic prefixRAKE receiverPSMchannel transformation
 Summary | Full Text:PDF(451.8KB)

Design of Spectrally Efficient Hermite Pulses for PSM UWB Communications
Alex CARTAGENA GORDILLO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/08/01
Vol. E91-A  No. 8  pp. 2016-2024
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing)
Category: 
Keyword: 
spectrally efficientUWBPSMHermite pulsesorthonormal detection
 Summary | Full Text:PDF(456.1KB)

Clear Channel Assessment in Ultra-Wideband Sensor Networks
Bin ZHEN Huan-Bang LI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/04/01
Vol. E91-B  No. 4  pp. 998-1005
Type of Manuscript:  PAPER
Category: Network
Keyword: 
ultra-widebandpreamble-assisted modulationclear channel assessmentwireless sensor networks
 Summary | Full Text:PDF(512.2KB)

A Combined Coding and Modulation to Support Both Coherent and Non-coherent Ultra-Wideband Receivers
Tomoko MATSUMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/06/01
Vol. E90-A  No. 6  pp. 1252-1256
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
ultra-widebandlow data-rate wireless personal area networkssuper-orthogonal convolutional codes
 Summary | Full Text:PDF(212.3KB)

Interference Reduction Using a Novel Pulse Set for UWB-CDMA Systems
Hiroki HARADA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/11/01
Vol. E89-A  No. 11  pp. 3050-3058
Type of Manuscript:  Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
UWB-WPANmodulated and modified Hermite pulse (MMHP)pulse shape hoppingasynchronous communicationinterference reduction
 Summary | Full Text:PDF(1.5MB)

Overview of Research, Development, Standardization, and Regulation Activities in NICT UWB Project
Ken-ichi TAKIZAWA Huan-Bang LI Iwao NISHIYAMA Jun-ichi TAKADA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/11/01
Vol. E89-A  No. 11  pp. 2996-3005
Type of Manuscript:  INVITED PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
UWBsoft spectrum adaptation (SSA)coexistencedetection and avoidance (DAA)spectrum maskITU-R TG1/8radar
 Summary | Full Text:PDF(1.3MB)

Clock Offset Compensation in Ultra-Wideband Ranging
Bin ZHEN Huan-Bang LI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/11/01
Vol. E89-A  No. 11  pp. 3082-3088
Type of Manuscript:  Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
Ultra-widebandtwo-way rangingsensor networksclock offset
 Summary | Full Text:PDF(691.1KB)

An Adaptive Frame-Based Interpolation Method of Channel Estimation for Space-Time Block Codes in Moderate Fading Channels
Gabriel Porto VILLARDI Giuseppe Thadeu Freitas de ABREU Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/03/01
Vol. E89-A  No. 3  pp. 660-669
Type of Manuscript:  Special Section PAPER (Special Section on Multidimensional Signal Processing and Its Application)
Category: Communications
Keyword: 
O-STBCchannel estimationinterpolationnon-quasi-static fadinglevel-crossing ratio
 Summary | Full Text:PDF(998.7KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/11/01
Vol. E88-B  No. 11  pp. 4147-4147
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(40.6KB)

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)

A Differential STBC Integrated with Trellis Coded Modulation
Susu JIANG Kentaro IKEMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2896-2904
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
space-time codedifferential space-time block codesymbol phase rotationset partitioning
 Summary | Full Text:PDF(864.3KB)

Space-Time-Frequency Turbo Code over Time-Varying and Frequency-Selective Fading Channel
Kouji ISHII Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2885-2895
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
turbo codespace-time-frequency codeiterative decodingEXIT chartOFDMMIMO
 Summary | Full Text:PDF(727.8KB)

Low-Complexity Viterbi Equalizer for MBOK DS-UWB Systems
Kenichi TAKIZAWA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2350-2355
Type of Manuscript:  Special Section PAPER (Special Section on Ultra Wideband Systems)
Category: Coding
Keyword: 
ultra wideband (UWB)M-ary biorthogonal keying (MBOK)equalizationdelayed decision-feedback sequence estimation (DDFSE)
 Summary | Full Text:PDF(432.8KB)

Adaptive RAKE Receivers with Subspace-Based Hadamard-Hermite Template Design for UWB Communications
Craig J. MITCHELL Giuseppe ABREU Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2327-2338
Type of Manuscript:  Special Section PAPER (Special Section on Ultra Wideband Systems)
Category: RAKE Receiver
Keyword: 
ultra widebandRAKE receivermultipathorthogonal Hermite pulses
 Summary | Full Text:PDF(1.6MB)

RF-CMOS Implementation of UWB Transceivers and Its Application to Video Transmission
Akifumi KASAMATSU Akio TANAKA Hiroshi KODAMA Satoru TANOI Yasuhiro KAIZAKI Juichi NAKADA Masami HAGIO Yoshiaki KURAISHI Keren LI Hitoshi UTAGAWA Toshiaki MATSUI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2279-2286
Type of Manuscript:  Special Section PAPER (Special Section on Ultra Wideband Systems)
Category: Hardware
Keyword: 
UWBimplementationCMOSMMICvideo
 Summary | Full Text:PDF(1.3MB)

FOREWORD
Ryuji KOHNO Tetsushi IKEGAMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2251-2251
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(59.5KB)

Design and Analysis of Synthesized Template Waveform for Receiving UWB Signals
Kentaro TANIGUCHI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2299-2309
Type of Manuscript:  Special Section PAPER (Special Section on Ultra Wideband Systems)
Category: Pulse Shape
Keyword: 
UWBultra widebandtemplate waveformsynthesiselementary waveformadaptive template
 Summary | Full Text:PDF(513.1KB)

Maximum Likelihood Estimation of Trellis Encoder and Modulator Transition Utilizing HMM for Adaptive Channel Coding and Modulation Technique
Kentaro IKEMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Vol. E88-A  No. 3  pp. 669-675
Type of Manuscript:  Special Section PAPER (Special Section on Adaptive Signal Processing and Its Applications)
Category: 
Keyword: 
hidden-Markov modelmaximum likelihood encoder and modulator transitiondecoder and demodulator selection error
 Summary | Full Text:PDF(1.4MB)

Effect of a Multi-Band OFDM-MIMO System on Frequency-Selective Propagation Characteristics
Mitsugu OHKAWA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 19-27
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part 1)
Category: MIMO
Keyword: 
MIMOOFDMmulti-bandfrequency selected
 Summary | Full Text:PDF(1.5MB)

Combined Iterative Demapping and Decoding for Coded MBOK DS-UWB Systems
Kenichi TAKIZAWA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/10/01
Vol. E87-A  No. 10  pp. 2621-2629
Type of Manuscript:  Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
ultra widebanditerative decodingM-ary biorthogonal keying(MBOK)multipath fading channels
 Summary | Full Text:PDF(501.8KB)

Characteristics of Dual Frequency Planar Monopole Antenna for UWB System
Yuko RIKUTA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/10/01
Vol. E87-A  No. 10  pp. 2607-2614
Type of Manuscript:  Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
monopole antennadual frequencyomni-directionalultra-widebandFDTD method
 Summary | Full Text:PDF(641.1KB)

On-Board Automatic Certification System for Software Defined Radio
Kazuyuki OKUIKE Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 2002-2009
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Signal Processing for Communications
Keyword: 
software defined radiotype approvalsecurity
 Summary | Full Text:PDF(862.3KB)

A New Space-Time Multiple Trellis Coded Modulation Scheme for Flat Fading Channels
Susu JIANG Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/03/01
Vol. E87-A  No. 3  pp. 640-648
Type of Manuscript:  Special Section PAPER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Communication Theory and Systems
Keyword: 
space-time multiple trellis coded modulationdiversityconvolutional codeViterbi decodingintra-distance
 Summary | Full Text:PDF(1.1MB)

Method of Non-Data-Aided Carrier Recovery with Modulation Identification
Kenta UMEBAYASHI Robert H. MORELOS-ZARAGOZA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/03/01
Vol. E87-A  No. 3  pp. 656-665
Type of Manuscript:  Special Section PAPER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Communication Theory and Systems
Keyword: 
software defined radiocarrier recoverydigital PLLmodulation identification
 Summary | Full Text:PDF(1.1MB)

A New Joint Estimation of Channels and the Number of Transmit Antennas for OFDM Systems with Antenna Diversity Employing Walsh Hadamard Codes
Wichai PONGWILAI Ryuji KOHNO Sawasd TANTARATANA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/02/01
Vol. E87-B  No. 2  pp. 242-256
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
orthogonal frequency division multiplexingantenna diversitychannel estimation
 Summary | Full Text:PDF(780KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3365-3365
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(56.7KB)

Beam-Space Time Coding Exploiting the Overlap among Beampatterns
Kouji ISHII Giuseppe ABREU Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/10/01
Vol. E86-A  No. 10  pp. 2501-2509
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Systems
Keyword: 
beam-space time codingadaptive array antennaPR coding schemeinter-beam interference
 Summary | Full Text:PDF(823.3KB)

Adaptive Channel Coding Techniques Using Finite State Machine for Software Defined Radio
Kentaro IKEMOTO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2663-2671
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)adaptive channel coding and decodingdecoder selection errorfinite state machineencoder transition
 Summary | Full Text:PDF(975.5KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2563-2563
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(90.2KB)

Security Issues for Software Defined Radio: Design of a Secure Download System
Lachlan B. MICHAEL Miodrag J. MIHALJEVIC Shinichiro HARUYAMA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2588-2600
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)securityencryptionauthentification
 Summary | Full Text:PDF(949.8KB)

Secure Download System Based on Software Defined Radio Composed of FPGAs
Hironori UCHIKAWA Kenta UMEBAYASHI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2601-2609
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
downloadsecurityfield programmable gate array (FPGA)software defined radio (SDR)
 Summary | Full Text:PDF(717.5KB)

A Software Radio Receiver with Direct Conversion and Its Digital Processing
Robert MORELOS-ZARAGOZA Shinichiro HARUYAMA Masayoshi ABE Noboru SASHO Lachlan B. MICHAEL Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2741-2749
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)direct conversiondesign methodology
 Summary | Full Text:PDF(930.9KB)

Adaptive Data Class Structure for Efficient Inter-Vehicle Communication
Lachlan B. MICHAEL Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/11/01
Vol. E85-D  No. 11  pp. 1830-1838
Type of Manuscript:  Special Section PAPER (Special Issue on Information System Technologies for ITS)
Category: 
Keyword: 
ad hoc networkinter-vehicle communicationlayersstructured dataITS
 Summary | Full Text:PDF(314.5KB)

Adaptive Array Antenna Using Array Antennas as Element Antennas
Hiroyuki YAMASUGE Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 1921-1926
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
adaptive array antennasmart antennaLMS algorithmadaptive sectored antennas
 Summary | Full Text:PDF(416.7KB)

Optimal Access Point Placement in Simultaneous Broadcast OFDM for Public Access Wireless LAN
Mari KOBAYASHI Shinichiro HARUYAMA Ryuji KOHNO Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 1978-1986
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
access pointOFDMsimulated annealingwireless LAN
 Summary | Full Text:PDF(583.3KB)

Viterbi Equalizing FH-SS Receiver with Sector Beamed Space Hopping
Satoru ISHII Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/03/01
Vol. E85-C  No. 3  pp. 458-465
Type of Manuscript:  Special Section PAPER (Special Issue on Signals, Systems and Electronics Technology)
Category: Digital Transmission
Keyword: 
space hoppingsector beamViterbi equalizerwhitening matched filterFH-SS communication
 Summary | Full Text:PDF(643.9KB)

Signal Processing and ASIC's for ITS Telecommunications--Spread Spectrum, Array Antenna and Software Defined Radio for ITS--
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/03/01
Vol. E85-A  No. 3  pp. 566-572
Type of Manuscript:  INVITED PAPER (Special Section on the Trend of Digital Signal Processing and Its Future Direction)
Category: Applications
Keyword: 
intelligent transport systems (ITS)software defined radio (SDR)adaptive array antennaspace-time codingspread spectrum
 Summary | Full Text:PDF(498KB)

Design of Simplified Coherent QPSK Modem for Frequency Hopping Spread Spectrum
Satoru ISHII Atsushi HOSHIKUKI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 2966-2975
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrumsymbol synchronizationcoherent demodulationcarrier extractiondigital PLL
 Summary | Full Text:PDF(632.7KB)

Optimum Modulation Assignment According to Subband Channel Status for BST-OFDM
Masayuki MOTEGI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/07/01
Vol. E84-A  No. 7  pp. 1714-1722
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
BST-OFDMmodulation assignmentBERinformation bit ratesubband channel status
 Summary | Full Text:PDF(1.6MB)

Transmitting Array Antenna Beamforming Based on Goal Programming for Forward Link of DS-CDMA System
Tsuguhide AOKI Norimichi HIRANO Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1861-1870
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
Category: Application to CDMA
Keyword: 
DS-CDMAmultiple access interferencearray antennaTPCgoal programming
 Summary | Full Text:PDF(2.5MB)

Adaptively Sampled Near-Field Smart Array Antenna for Indoor Wireless Communications
Giuseppe ABREU Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1743-1759
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
Category: Adaptive Algorithms and Experiments
Keyword: 
adaptive array antennasmart antennasindoor near-field beamformingwireless LAN
 Summary | Full Text:PDF(4.9MB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1703-1703
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(28.2KB)

Study of the Bandwidth Adjustment of an Unbiased Adaptive IIR Multiline Enhancer
Mohammad GHAVAMI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/04/01
Vol. E84-A  No. 4  pp. 961-965
Type of Manuscript:  Special Section LETTER (Special Section on Fundamentals of Information and Communications)
Category: 
Keyword: 
IIR signal processingline enhancement
 Summary | Full Text:PDF(368.6KB)

FOREWORD
Ryuji KOHNO Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8  pp. 1589-1590
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(47.2KB)

Coding and Modulation Tradeoffs for Limiter-Discriminator Based CPM Transceivers in a Rayleigh Fading Channel
David K. ASANO Subbarayan PASUPATHY Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8  pp. 1896-1899
Type of Manuscript:  Special Section LETTER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
CPMlimiter-discriminatorRayleigh fadingcoding
 Summary | Full Text:PDF(312.2KB)

Structures and Theories of Software Antennas for Software Defined Radio
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/06/25
Vol. E83-B  No. 6  pp. 1189-1199
Type of Manuscript:  INVITED PAPER (Special Issue on Software Defined Radio and Its Technologies)
Category: 
Keyword: 
software defined radio (SDR)adaptive array antennasoftware antennaspace-time coding
 Summary | Full Text:PDF(1.6MB)

Performance of Orthogonal Multi-Carrier FH-CDMA System in the Presence of Selective Fading and Nonlinear Amplification
Mitsugu OHKAWA Hiromitsu WAKANA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/12/25
Vol. E82-A  No. 12  pp. 2649-2659
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
frequency hoppingcode division multiple accessorthogonal multi carrierfrequency selective fadingnonlinear amplification
 Summary | Full Text:PDF(1.3MB)

Single-User Receiver Based on Orthogonalizing Matched Filter Using Multi-Dimensional Lattice Filters for DS/CDMA
Daisuke JITSUKAWA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/08/25
Vol. E82-A  No. 8  pp. 1566-1574
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
DS/CDMAco-channel interferenceorthogonalizing matched filterlattice filter
 Summary | Full Text:PDF(627.5KB)

A Novel Wireless Multimedia CDMA System Based on Adaptive Chip/Bit Rate Control
Meizhong WANG Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2341-2345
Type of Manuscript:  Special Section LETTER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
DS-CDMAwireless multimediadelay-critical servicenon-delay-critical serviceadaptive chip and bit rate controldynamic programming
 Summary | Full Text:PDF(362.4KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2241-2241
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(108.1KB)

Adaptive Unequal Error Protection Scheme Using Several Convolutional Codes
Mari MATSUNAGA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/25
Vol. E81-A  No. 10  pp. 2005-2012
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
unequal error protectionconvolutional codehuman communication
 Summary | Full Text:PDF(621.5KB)

Non-Proper Variable-to-Fixed Length Arithmetic Coding
Suk-hee CHO Ryuji KOHNO Ji-hwan PARK 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1739-1747
Type of Manuscript:  PAPER
Category: Information Theory and Coding Theory
Keyword: 
VF codeVF arithmetic codingnon-proper codedata compression
 Summary | Full Text:PDF(703KB)

Cyclic Codes Over Z4 with Good Parameters Considering Lee Weight
Sylvia ENCHEVA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/03/25
Vol. E81-A  No. 3  pp. 507-509
Type of Manuscript:  LETTER
Category: Information Theory and Coding Theory
Keyword: 
Z4 codesHamming weightLee weightring
 Summary | Full Text:PDF(148.4KB)

Vehicular Spread Spectrum Radar for Multiple Targets Detection Using Multi-Beam Antenna
Yukiko HANADA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2517-2525
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrum techniqueradarmulti-beaminterference cancellation
 Summary | Full Text:PDF(614.1KB)

Bearing Estimation for Wideband Signals in a Multipath Channel
Isamu YOSHII Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2534-2539
Type of Manuscript:  Special Section LETTER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
Array antennabearing estimationspread spectrumwideband signal
 Summary | Full Text:PDF(380.7KB)

FOREWORD
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2339-2339
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(104.2KB)

Performance Evaluation of DS/CDMA Scheme with Diversity Coding and MUI Cancellation over Fading Multipath Channel
Ahmed SAIFUDDIN Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Vol. E79-A  No. 12  pp. 1994-2001
Type of Manuscript:  Special Section PAPER (Special Secton on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
diversity codingmultiuser interference cancellationfading
 Summary | Full Text:PDF(591.6KB)

A Wireless Multi-Media CDMA System Based on Processing Gain Control
Jianming WU Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Vol. E79-A  No. 12  pp. 2018-2027
Type of Manuscript:  Special Section PAPER (Special Secton on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
CDMAwireless multi-medianonlinear programmingTDMAprocessing gain controlCCI canceller
 Summary | Full Text:PDF(767.9KB)

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: 1996/12/25
Vol. E79-A  No. 12  pp. 1927-1929
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(560.4KB)

Adaptive Multi-User Equalizer Using Multi-Dimensional Lattice Filters for DS-CDMA
Daisuke JITSUKAWA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/09/25
Vol. E79-A  No. 9  pp. 1464-1470
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Communication
Keyword: 
DS-CDMAco-channel interferencelattice filtermulti-user detection
 Summary | Full Text:PDF(404.7KB)

Compression Coding Using an Optical Model for a Pair of Range and Grey-Scale Images of 3D Objects
Kefei WANG Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/09/25
Vol. E79-A  No. 9  pp. 1330-1337
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding/Security
Keyword: 
3D objectsrange imagegrey-scale imageilluminant directioncompression coding
 Summary | Full Text:PDF(668.6KB)

Spatially and Temporally Joint Transmitter-Receiver Using an Adaptive Array Antenna
Naoto ISHII Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/03/25
Vol. E79-B  No. 3  pp. 361-367
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Adaptive Radio Communication Technologies)
Category: Modulation, Demodulation
Keyword: 
transmission filteringarray antennaspatial and temporal domains
 Summary | Full Text:PDF(511.8KB)

A Spatially and Temporally Optimal Multi-User Receiver Using an Array Antenna for DS/CDMA
Minami NAGATSUKA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/11/25
Vol. E78-B  No. 11  pp. 1489-1497
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Signal Processing Technology in Antennas)
Category: 
Keyword: 
adaptive array antennaoptimal receivermaximum likelihood sequence estimatorViterbi estimatorViterbi algorithmmulti-user receiverDS/CDMA
 Summary | Full Text:PDF(614.3KB)

Tap Selectable Viterbi Equalizer Combined with Diversity Antennas
Naoto ISHII Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/11/25
Vol. E78-B  No. 11  pp. 1498-1506
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Signal Processing Technology in Antennas)
Category: 
Keyword: 
Viterbi equalizertap selectionantenna diversityspatial equalization
 Summary | Full Text:PDF(617.4KB)

MFSK/FH-CDMA System with Two-Stage Address Coding and Error Correcting Coding and Decoding
Weidong MAO Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/09/25
Vol. E78-A  No. 9  pp. 1117-1126
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
two-stage codingMFSKFH-CDMAaddress codemulti-user detectionerasure decoding
 Summary | Full Text:PDF(875.2KB)

Performance Evaluation of Near-Far Resistant Receiver for DS/CDMA Cellular System over Fading Multipath Channel
Ahmed SAIFUDDIN Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8  pp. 1136-1144
Type of Manuscript:  Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
AMEnear-far problemfadingCCl cancellation
 Summary | Full Text:PDF(646.1KB)

FOREWORD
Masao NAKAGAWA Yukitsuna FURUYA Toshikazu KODAMA Ryuji KOHNO Yoichi SAITO Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8  pp. 1087-1088
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(238.4KB)

Spatial and Temporal Equalization Based on an Adaptive Tapped-Delay-Line Array Antenna
Naoto ISHII Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8  pp. 1162-1169
Type of Manuscript:  Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
equalizationadaptive array antennaspatial and temporal domainzero forcing criterion
 Summary | Full Text:PDF(596.9KB)

Variable Error Controlling Schemes for Intelligent Error Controlling Systems
Taroh SASAKI Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/08/25
Vol. E77-A  No. 8  pp. 1281-1288
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
error correcting codesunequal error protectionvariable error controlimportanceintelligent communication
 Summary | Full Text:PDF(698.7KB)

An Error-Controlling Scheme according to the Importance of Individual Segments of Model-Based Coded Facial Images
Noriko SUZUKI Taroh SASAKI Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/08/25
Vol. E77-A  No. 8  pp. 1289-1297
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
human communicationfacial image codingintelligent error-controllingunequal error protection codesmodel-based coding
 Summary | Full Text:PDF(734.6KB)

Multilevel RLL (D,K,l) Constrained Sequences
Oscar Yassuo TAKESHITA Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/08/25
Vol. E77-A  No. 8  pp. 1238-1245
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
runlength limited sequencesrecording signalschannel capacitypower spectra density
 Summary | Full Text:PDF(553.5KB)

FOREWORD
Yoshihiko AKAIWA Shuzo KATO Masao NAKAGAWA Ryuji KOHNO Shinsuke HARA Nobuo NAKAJIMA Yukitsuna FURUYA Kouichi HONMA Eisuke FUKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/07/25
Vol. E77-B  No. 7  pp. 853-854
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(192.7KB)

Adaptive Array Antenna Based on Spatial Spectral Estimation Using Maximum Entropy Method
Minami NAGATSUKA Naoto ISHII Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/05/25
Vol. E77-B  No. 5  pp. 624-633
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Signal Processing in Mobile Radio Communications)
Category: 
Keyword: 
adaptive array antennamaximum entropy methodspatial samplingtemporal sampling
 Summary | Full Text:PDF(752.9KB)

A Fast Automatic Fingerprint Identification Method Based on a Weighted-Mean of Binary Image
Yu HE Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/09/25
Vol. E76-A  No. 9  pp. 1469-1482
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
automatic fingerprint identificationpattern recognitionweighted-meanoptimizationpersonal identification
 Summary | Full Text:PDF(1.1MB)

Multihopping and Decoding of Error-Correcting Code for MFSK/FH-SSMA Systems
Tetsuo MABUCHI Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/08/25
Vol. E76-B  No. 8  pp. 874-885
Type of Manuscript:  Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrum multiple accessfrequency hoppingerror-correcting code
 Summary | Full Text:PDF(927.4KB)

Implementation of an Industrial R/C System Using a Hybrid DS/FH Spread Spectrum Technique
Atsushi HOSHIKUKI Michio YAMAMOTO Satoru ISHII Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/08/25
Vol. E76-B  No. 8  pp. 984-989
Type of Manuscript:  Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
industrial R/C systemhybrid DS/FHDSFHspread spectrum
 Summary | Full Text:PDF(535.2KB)

FOREWORD
Masao NAKAGAWA Ryuji KOHNO Shin'ichi TACHIKAWA Taka-aki HASEGAWA Tetsushi IKEGAMI Eisuke FUKUDA Yukitsuna FURUYA Shuzo KATO Masashi SATOH Hisao TACHIKA Yoshihiro TANADA Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/08/25
Vol. E76-B  No. 8  pp. 801-803
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(453.8KB)

Cascaded Co-Channel Interference Cancelling and Diversity Combining for Spread-Spectrum Multi-Access over Multipath Fading Channels
Young C. YOON Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/02/25
Vol. E76-B  No. 2  pp. 163-168
Type of Manuscript:  Special Section LETTER (Special Issue on Land Mobile/Portable Propagation)
Category: 
Keyword: 
spread-spectrum multi-accessco-channel interference cancellationdiversity combiningmultipath fading
 Summary | Full Text:PDF(357.9KB)

Adaptive Equalization with Dual Diversity-Combining
Kouei MISAIZU Takashi MATSUOKA Hiroshi OHNISHI Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/02/25
Vol. E76-B  No. 2  pp. 131-138
Type of Manuscript:  Special Section PAPER (Special Issue on Land Mobile/Portable Propagation)
Category: 
Keyword: 
adaptive equalizerdual diversity-combiningdigital mobile radio communicationmultipath fading channel
 Summary | Full Text:PDF(628.7KB)

Median Differential Order Statistic Filters
Peiheng QI Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/09/25
Vol. E75-A  No. 9  pp. 1100-1109
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
median filterorder statistic filtermedian differential order informationpiecewise linear functionoutput mean square error
 Summary | Full Text:PDF(712.8KB)

An Error-Controlling Scheme Based on Different Importance of Segments of a Natural Language
Taroh SASAKI Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/09/25
Vol. E75-A  No. 9  pp. 1076-1086
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
intelligent communicationerror-correcting codesnatural language
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Pseudo-Noise Sequences and Interference Cancellation Techniques for Spread Spectrum Systems--Spread Spectrum Theory and Techniques in Japan--
Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/05/25
Vol. E74-B  No. 5  pp. 1083-1092
Type of Manuscript:  INVITED PAPER (Special Issue on Spread Spectrum Techniques and Its Applications)
Category: 
Keyword: 
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Performance of Multihop Fast Frequency Hopping/Spread Spectrum Multiple Access System in a Selective Fading Channel
Hideya YAMAMURA Ryuji KOHNO Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/05/25
Vol. E74-B  No. 5  pp. 1145-1154
Type of Manuscript:  Special Section PAPER (Special Issue on Spread Spectrum Techniques and Its Applications)
Category: 
Keyword: 
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Information Security of Spread Spectrum Systems
Hideki IMAI Ryuji KOHNO Tsutomu MATSUMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/03/25
Vol. E74-A  No. 3  pp. 488-505
Type of Manuscript:  INVITED PAPER
Category: 
Keyword: 
 Summary | Full Text:PDF(1.5MB)