Hiromi OKADA


Novel Vehicle Information Acquisition Method Using 2D Reflector Code for Automotive Infrared Laser Radar
Tomotaka WADA Yusuke SHIKIJI Keita WATARI Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 294-303
Type of Manuscript:  Special Section PAPER (Special Section on Intelligent Transport Systems)
Category: 
Keyword: 
ITS2D reflector codeautomotive infrared laser radarvehicle information acquisition
 Summary | Full Text:PDF(4.6MB)

Effective Barrier Coverage Constructions for Improving Border Security in Wireless Sensor Networks
Manato FUJIMOTO Hayato OZAKI Takuya SUZUKI Hiroaki KOYAMASHITA Tomotaka WADA Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/12/01
Vol. E96-B  No. 12  pp. 3007-3016
Type of Manuscript:  Special Section PAPER (Special Section on Network and System Technologies for Sustainable Society)
Category: 
Keyword: 
wireless sensor networksbarrier coverageborder securityZigBee
 Summary | Full Text:PDF(2.9MB)

Development of Emergency Rescue Evacuation Support System (ERESS) in Panic-Type Disasters: Disaster Recognition Algorithm by Support Vector Machine
Kazuya MORI Akinori YAMANE Youhei HAYAKAWA Tomotaka WADA Kazuhiro OHTSUKI Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/02/01
Vol. E96-A  No. 2  pp. 649-657
Type of Manuscript:  PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
ad-hoc networkMANETERESSSupport Vector Machine
 Summary | Full Text:PDF(2.3MB)

Swift Communication Range Recognition Method for Quick and Accurate Position Estimation of Passive RFID Tags
Manato FUJIMOTO Tomotaka WADA Atsuki INADA Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/09/01
Vol. E95-A  No. 9  pp. 1596-1605
Type of Manuscript:  PAPER
Category: Measurement Technology
Keyword: 
RFID systemRFID readerRFID tagSwift Communication Range Recognition (S-CRR)communication area modelboundary angle
 Summary | Full Text:PDF(3.5MB)

Localization of Passive RFID Tags by Using Broad-Type Multi-Sensing-Range (B-MSR) Method
Manato FUJIMOTO Tomotaka WADA Atsuki INADA Emi NAKAMORI Yuki ODA Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/07/01
Vol. E95-A  No. 7  pp. 1164-1174
Type of Manuscript:  PAPER
Category: Measurement Technology
Keyword: 
RFID readerRFID tagposition estimationsensor modelbroad-type multi-sensing-range method
 Summary | Full Text:PDF(3.7MB)

An Adaptive Multi-Range-Sensing Method for 3D Localization of Passive RFID Tags
Tomotaka WADA Toshihiro HORI Manato FUJIMOTO Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/06/01
Vol. E95-A  No. 6  pp. 1074-1083
Type of Manuscript:  PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
RFID (Radio Frequency IDentification)localizationpassive RFID tagtransmission power
 Summary | Full Text:PDF(2.8MB) | (Errata[Uploaded on July 1,2013])

A Novel Fast Mobile IPv6 Handover Scheme Using Dual Bands in Road-to-Vehicle Communications
Tomotaka WADA Hiroyuki TAKAHASHI Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/01/01
Vol. E95-A  No. 1  pp. 313-316
Type of Manuscript:  Special Section LETTER (Special Section on Intelligent Transport Systems)
Category: ITS
Keyword: 
handovermobile IPv6dual bandsroad-to-vehicle communications
 Summary | Full Text:PDF(977.1KB)

A Novel Real-Time Recognition Method of Vehicular Traffic Congestion by VANET
Tomotaka WADA Junya FUKUMOTO Kazuhiro OHTSUKI Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 55-63
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems Technologies and Their Application to Networked Systems)
Category: Scalability & Timeliness
Keyword: 
ITSIVCVANETtraffic congestionlevel-n information
 Summary | Full Text:PDF(2.5MB)

Mobile Terminal Substitution of Vehicular Collision Avoidance Support System (VCASS) for Non-VCASS Vehicles: S-VCASS
Tomotaka WADA Shinji NAKAI Tetsuya MARUOKA Haokun WANG Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/01/01
Vol. E94-A  No. 1  pp. 410-419
Type of Manuscript:  PAPER
Category: Intelligent Transport System
Keyword: 
ITSIVCGPSwireless LANmobile terminalVCASS (Vehicular Collision Avoidance Support System)
 Summary | Full Text:PDF(5.6MB)

A Novel Emergency Rescue Urgent Communications for Sharing Evacuation Support Information in Panic-Type Disasters
Tomotaka WADA Akinori YAMANE Kazuhiro OHTSUKI Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3429-3437
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
ad-hoc networkMANETpanic-type disasterevacuation route search
 Summary | Full Text:PDF(1.7MB)

A Novel Communication Range Recognition (CRR) Scheme for Spatial Localization of Passive RFID Tags
Tomotaka WADA Norie UCHITOMI Yuuki OTA Toshihiro HORI Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/09/01
Vol. E93-A  No. 9  pp. 1660-1669
Type of Manuscript:  PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
RFID readerRFID taglocalizationcommunication range recognitionestimated position error
 Summary | Full Text:PDF(1.6MB)

Pedestrian Oriented Vehicular Collision Avoidance Support System: P-VCASS
Tomotaka WADA Yuki NAKANISHI Ryohta YAMAGUCHI Kazushi FUJIMOTO Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/04/01
Vol. E93-A  No. 4  pp. 679-688
Type of Manuscript:  Special Section PAPER (Special Section on Intelligent Transport Systems)
Category: 
Keyword: 
ITSVCASSGPSP-VCASS
 Summary | Full Text:PDF(1.3MB)

A Multi-Sensing-Range Method for Efficient Position Estimation by Passive RFID Technology
Toshihiro HORI Tomotaka WADA Norie UCHITOMI Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/10/01
Vol. E92-A  No. 10  pp. 2609-2617
Type of Manuscript:  PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
RFID (Radio Frequency IDentification)RFID readerRFID tagposition estimationpassive taglikelihoodtransmission power
 Summary | Full Text:PDF(1.3MB)

An Adaptive Likelihood Distribution Algorithm for the Localization of Passive RFID Tags
Yuuki OTA Toshihiro HORI Taiki ONISHI Tomotaka WADA Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/07/01
Vol. E91-A  No. 7  pp. 1666-1675
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
RFID readerRFID taglocalizationlikelihood distributionestimated position error
 Summary | Full Text:PDF(1.7MB)

Experimental Performance Evaluations of Reflect-Transmission Control Schemes for Vehicle-PEdestrian Communications (VPEC)
Yoshihisa OKADA Tomotaka WADA Masato HORIE Fumio NAKASE Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/10/01
Vol. E90-B  No. 10  pp. 2931-2939
Type of Manuscript:  PAPER
Category: Integrated Systems for Communications
Keyword: 
ITSIVCVANETVPECreflect-transmission schemeCRI
 Summary | Full Text:PDF(1.2MB)

A Cost-Effective Dynamic Content Migration Method in CDNs
Hiroyuki EBARA Yasutomo ABE Daisuke IKEDA Tomoya TSUTSUI Kazuya SAKAI Akiko NAKANIWA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/12/01
Vol. E88-B  No. 12  pp. 4598-4604
Type of Manuscript:  PAPER
Category: Network Management/Operation
Keyword: 
content distribution network (CDN)Internetcontent migrationdynamic content allocationshortest path
 Summary | Full Text:PDF(730.7KB)

Vehicular-Collision Avoidance Support System (VCASS) by Inter-Vehicle Communications for Advanced ITS
Jumpei UEKI Sentarou TASAKA Yuji HATTA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1816-1823
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Network Management/Operation
Keyword: 
mobile ad hoc networkIVCITSvehicular-collision avoidancecollision judgment
 Summary | Full Text:PDF(1.4MB)

Load Fluctuation-Based Dynamic File Allocation with Cost-Effective Mirror Function
Jun TAKAHASHI Akiko NAKANIWA Yasutomo ABE Hiroyuki EBARA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/04/01
Vol. E86-B  No. 4  pp. 1317-1326
Type of Manuscript:  PAPER
Category: Network
Keyword: 
load balancingsimple mirroring functiondynamic file allocationInternetdistributed networks
 Summary | Full Text:PDF(698.4KB)

PRMA/URN with Enhanced Access Control for CDMA Environment
Tomohiro HARUKI Takashi MATSUMOTO Jun-ichi NISHIMURA Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2  pp. 709-717
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
PRMAURNCDMAenhanced access
 Summary | Full Text:PDF(1.1MB)

An Effective Multicast ATM Switch for Advanced Multimedia Communication --Singlecast Stuffed Multicast Advanced Processing (SSMAP) ATM Switch --
Takahiro NISHIMURA Katsutoshi OHMAE Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 413-420
Type of Manuscript:  PAPER
Category: Switching
Keyword: 
multicastATM switchOSCSWSCS
 Summary | Full Text:PDF(762.6KB)

CDMA with Code Assignment Control for Integrated Voice/Data Transmission
Tomohiro HARUKI Jun-ichi NISHIMURA Kouichi MUTSUURA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2247-2254
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
PRMACDMAcode assignment controlenhanced mode
 Summary | Full Text:PDF(946.5KB)

Reliability-Based Mirroring of Servers in Distributed Networks
Akiko NAKANIWA Jun TAKAHASHI Hiroyuki EBARA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 540-549
Type of Manuscript:  PAPER
Category: Network Management/Operation
Keyword: 
load balancingreliabilitymirroringdistributed database systemInternet
 Summary | Full Text:PDF(658.6KB)

Sensitivity Analysis in Optimal Design for Distributed File Allocation Systems
Akiko NAKANIWA Masaki ONISHI Hiroyuki EBARA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/06/01
Vol. E84-B  No. 6  pp. 1655-1663
Type of Manuscript:  PAPER
Category: Software Platform
Keyword: 
distributed processingdistributed database systemfile allocationsensitivity analysismultimedia information network
 Summary | Full Text:PDF(589.4KB)

Mobile Multimedia Access Protocols in Packet-typed Wireless Networks
Tetsuya YAMASHITA Takashi MATSUMOTO Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/01/25
Vol. E83-B  No. 1  pp. 56-67
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
packet-typed wireless networksaccess schemepacket transmissionmobile communicationstransmission channel
 Summary | Full Text:PDF(806.8KB)

FOREWORD
Hiromi OKADA Masato EGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1137-1137
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(19KB)

An Integrated Dynamic Error Control Scheme for Wireless ATM Networks
Kentaro YAMADA Hiromi OKADA Ten Hwang LAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1261-1268
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
wireless ATMrandom and burst errorsARQFECbit interleavingdynamic error control
 Summary | Full Text:PDF(572.7KB)

File Allocation Designs for Distributed Multimedia Information Networks
Akiko NAKANIWA Hiroyuki EBARA Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/08/25
Vol. E81-B  No. 8  pp. 1647-1655
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia Communications in Heterogeneous Network Environments)
Category: Heterogeneous Multimedia Servers
Keyword: 
distributed processingdistributed database system optimal file allocation video on demandmultimedia information networkheterogeneous network
 Summary | Full Text:PDF(742.9KB)

A Large Capacity Photonic ATM Switch Based on Wavelength Division Multiplexing Technology
Youngbok CHOI Hideki TODE Hiromi OKADA Hiromasa IKEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/04/25
Vol. E79-B  No. 4  pp. 560-568
Type of Manuscript:  PAPER
Category: Communication Networks and Services
Keyword: 
photonic switchelectronic controlATM switchingWDM optical networksWDM optical buffer
 Summary | Full Text:PDF(796.5KB)

A Photonic ATM Switch Architecture for WDM Optical Networks
Youngbok CHOI Hideki TODE Hiromi OKADA Hiromasa IKEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/09/25
Vol. E78-B  No. 9  pp. 1333-1335
Type of Manuscript:  LETTER
Category: Switching and Communication Processing
Keyword: 
photonic switchATM switchingWDM optical networksWDM optical buffer
 Summary | Full Text:PDF(251.8KB)

Performance Study of the Multi-Cell Transfer Scheme in the Optical Backbone Network
Youngbok CHOI Hideki TODE Miki YAMAMOTO Hiromi OKADA Hiromasa IKEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/05/25
Vol. E78-B  No. 5  pp. 729-736
Type of Manuscript:  PAPER
Category: Switching and Communication Processing
Keyword: 
ATM switchingphotonic switchmulti-cellbackbone networkVPS
 Summary | Full Text:PDF(731.6KB)

A Proposal of Quasi-STM Transmission Method in ATM-Based Network
Hideki TODE Noriaki KAMIYAMA Chikara OHTA Miki YAMAMOTO Hiromi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/07/25
Vol. E76-B  No. 7  pp. 719-722
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1992 IEICE Fall Conference and the 1993 IEICE Spring Conference)
Category: 
Keyword: 
ATMlossfreeno delay jitterhierarchical frameQuasi-STM
 Summary | Full Text:PDF(285.8KB)

Layered Self-Organizing Packet Radio Networks
Akira ISHIDA Jae-Gyu YOO Miki YAMAMOTO Hiromi OKADA Yoshikazu TEZUKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1720-1726
Type of Manuscript:  Special Section PAPER (Special Section on Networks and Mobile Communications)
Category: 
Keyword: 
mobile communication networksself-oraganizing networksdistributed systems
 Summary | Full Text:PDF(681.8KB)

Traffic Distributing Algorithm for Multicast Routing in Packet Type Networks
Hideki TODE Yasuharu SAKAI Miki YAMAMOTO Hiromi OKADA Yoshikazu TEZUKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/12/25
Vol. E74-B  No. 12  pp. 4051-4060
Type of Manuscript:  Special Section PAPER (Special Issue on Network Control)
Category: 
Keyword: 
 Summary | Full Text:PDF(833.6KB)