Toru HASEGAWA


Relay Mobile Device Discovery with Proximity Services for User-Provided IoT Networks
Masanori ISHINO Yuki KOIZUMI Toru HASEGAWA 
Publication:   
Publication Date: 2017/11/01
Vol. E100-B  No. 11  pp. 2038-2048
Type of Manuscript:  PAPER
Category: Network
Keyword: 
Internet of Things (IoT)mobile architecturecellular networkIoT gatewayproximity services (ProSe)
 Summary | Full Text:PDF(1.9MB)

Routing-Based Mobility Architecture for Future 5G Cellular Networks
Yo NISHIYAMA Masanori ISHINO Yuki KOIZUMI Toru HASEGAWA Kohei SUGIYAMA Atsushi TAGAMI 
Publication:   
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1789-1797
Type of Manuscript:  PAPER
Category: Network
Keyword: 
5Gdistributed mobility managementrouting architectureBloom Filteranchor-less forwarding
 Summary | Full Text:PDF(2.1MB)

NDN-Based Message Delivery with Collaborative Communication for Reducing Base Station Power Consumption in Disasters
Yuki KOIZUMI Suhwuk KIM Yuki URATA Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/12/01
Vol. E99-B  No. 12  pp. 2541-2549
Type of Manuscript:  Special Section PAPER (Special Section on Information Centric Networking: Paradigms, Technologies, and Applications)
Category: 
Keyword: 
collaborative communicationdisasterenergy efficiencylong term evolutionnamed data networking
 Summary | Full Text:PDF(1.6MB)

Is Caching a Key to Energy Reduction of NDN Networks?
Junji TAKEMASA Yuki KOIZUMI Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/12/01
Vol. E99-B  No. 12  pp. 2489-2497
Type of Manuscript:  Special Section PAPER (Special Section on Information Centric Networking: Paradigms, Technologies, and Applications)
Category: 
Keyword: 
ICN (Information Centric Networking)NDN (Named Data Networking)cachingenergy efficiency
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A Routing-Based Mobility Management Scheme for IoT Devices in Wireless Mobile Networks
Masanori ISHINO Yuki KOIZUMI Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/12/01
Vol. E98-B  No. 12  pp. 2376-2381
Type of Manuscript:  Special Section PAPER (Special Section of Position Papers Exploring Innovative Intelligence and Technologies in Communications, Part II)
Category: 
Keyword: 
Internet of Things (IoT)mobility managementrouting architectureBloom Filter
 Summary | Full Text:PDF(750.2KB)

Efficient Lookup Scheme for Non-aggregatable Name Prefixes and Its Evaluation
Masaki FUKUSHIMA Atsushi TAGAMI Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/12/01
Vol. E96-B  No. 12  pp. 2953-2963
Type of Manuscript:  Special Section PAPER (Special Section on Network and System Technologies for Sustainable Society)
Category: 
Keyword: 
CCNforwardingFIBlongest prefix match
 Summary | Full Text:PDF(1.3MB)

A Survey of the Research on Future Internet and Network Architectures
Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1385-1401
Type of Manuscript:  INVITED SURVEY PAPER
Category: 
Keyword: 
New Generation Networkfuture Internetclean-slate design
 Summary | Full Text:PDF(2.6MB)

Decentralized Equal-Sized Clustering in Sensor Networks
Takeshi KUBO Atsushi TAGAMI Teruyuki HASEGAWA Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/05/01
Vol. E96-A  No. 5  pp. 916-926
Type of Manuscript:  Special Section PAPER (Special Section on Networked Control Systems: Theories & Applications)
Category: 
Keyword: 
clusteringequal-sized clusterspartial differential equationdecentralized algorithm
 Summary | Full Text:PDF(2.3MB)

Mathematically Designing a Local Interaction Algorithm for Decentralized Network Systems
Takeshi KUBO Teruyuki HASEGAWA Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/05/01
Vol. E95-B  No. 5  pp. 1547-1557
Type of Manuscript:  Special Section PAPER (Special Section on Frontiers of Information Network Science)
Category: 
Keyword: 
decentralized network systemlocal interactionpartial differential equationsinusoidal wave
 Summary | Full Text:PDF(1.7MB)

FOREWORD
Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/06/01
Vol. E94-B  No. 6  pp. 1525-1525
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(113.5KB)

AS Alliance for Resilient Communication over the Internet
Yuichiro HEI Akihiro NAKAO Tomohiko OGISHI Toru HASEGAWA Shu YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/10/01
Vol. E93-B  No. 10  pp. 2706-2714
Type of Manuscript:  PAPER
Category: Internet
Keyword: 
AS allianceroutingBGPoverlaymultipath
 Summary | Full Text:PDF(618.4KB)

IP Network Failure Identification Based on the Detailed Analysis of OSPF LSA Flooding
Yuichiro HEI Tomohiko OGISHI Shigehiro ANO Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5  pp. 1320-1330
Type of Manuscript:  Special Section PAPER (Special Section on Communication Quality)
Category: Measurement Methodology for Network Quality Such as IP, TCP and Routing
Keyword: 
routingmonitorOSPFfailure identificationLSA
 Summary | Full Text:PDF(534KB)

Locating Congested Segments over the Internet Based on Multiple End-to-End Path Measurements
Atsuo TACHIBANA Shigehiro ANO Toru HASEGAWA Masato TSURU Yuji OIE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/04/01
Vol. E89-B  No. 4  pp. 1099-1109
Type of Manuscript:  Special Section PAPER (Special Section on Internet Technology VI)
Category: 
Keyword: 
packet lossactive measurementlocating congestionnetwork tomography
 Summary | Full Text:PDF(492.6KB)

Programmable Traffic Monitoring Method Based on Active Network Techniques and Application to DDoS Detection
Toru HASEGAWA Shigehiro ANO Fumito KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/07/01
Vol. E87-B  No. 7  pp. 1890-1899
Type of Manuscript:  Special Section PAPER (Special Section on Next Generation Networks Software)
Category: Security Issues
Keyword: 
active networktraffic monitornetwork managementDDoS
 Summary | Full Text:PDF(1.3MB)

An IP Based Realtime VLBI Observation Testbed with Multiple STM-16c Links
Teruyuki HASEGAWA Toru HASEGAWA Noriyuki KAWAGUCHI Kenta FUJISAWA Kazuhiro TAKASHIMA Hisao UOSE Shoichiro ASANO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/03/01
Vol. E87-B  No. 3  pp. 651-659
Type of Manuscript:  Special Section PAPER (Special Section on Internet Technology IV)
Category: New Applications
Keyword: 
VLBIIPATMnetworkSTM-16castronomy
 Summary | Full Text:PDF(1.1MB)

Fast Data Transfer Method in Mobile IP Based Backbone Networks
Takeshi KUBO Hidetoshi YOKOTA Akira IDOUE Toru HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/03/01
Vol. E87-B  No. 3  pp. 516-522
Type of Manuscript:  Special Section PAPER (Special Section on Internet Technology IV)
Category: Mobile Networking
Keyword: 
Mobile IPFAmobility agentcooperationindexing
 Summary | Full Text:PDF(411.7KB)

Implementation and Evaluation of TCP Protocol Tester Generating Exceptional Test Sequences
Tomohiko OGISHI Toru HASEGAWA Toshihiko KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2  pp. 604-613
Type of Manuscript:  Special Section PAPER (Special Issue on Internet Technology III)
Category: Traffic Monitoring and Evaluation
Keyword: 
TCPtest scenariocongestion controlselective acknowledgment
 Summary | Full Text:PDF(1.5MB)

Fast Handoff Method for Mobile IP over Wireless LAN Networks
Hidetoshi YOKOTA Akira IDOUE Toru HASEGAWA Toshihiko KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2108-2116
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
Mobile IPwireless LANfast handoff
 Summary | Full Text:PDF(1.3MB)

Design and Implementation of Internet Performance Monitor with Realtime TCP Behavior Analysis
Tomohiko OGISHI Akira IDOUE Toru HASEGAWA Toshihiko KATO Kenji SUZUKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/08/01
Vol. E84-B  No. 8  pp. 2124-2133
Type of Manuscript:  Special Section PAPER (Special Issue on Internet Technology)
Category: Traffic Measurement and Analysis
Keyword: 
TCP/IPmonitorperformanceanalysisthroughput
 Summary | Full Text:PDF(2.8MB)

QoS Routing-Based Congestion Management over Active Internetworking System Using Stream Code
Shigehiro ANO Toru HASEGAWA Koji NAKAO Toshihiko KATO Takashi EGAWA Koji HINO Yoshiaki KIRIHA Fumito KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/06/01
Vol. E84-B  No. 6  pp. 1569-1580
Type of Manuscript:  Special Section PAPER (Special Issue on New Developments on QoS Technologies for Information Networks)
Category: 
Keyword: 
active networkcongestion managementQoS routing
 Summary | Full Text:PDF(1.4MB)

An Experimental Study on Performance during Congestion for TCP/IP Traffic over Wide Area ATM Network Using VBR with Selective Cell Discard
Shigehiro ANO Toru HASEGAWA Toshihiko KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/02/25
Vol. E83-B  No. 2  pp. 155-164
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)
Category: IP/ATM
Keyword: 
ATM networkTCP/IPvariable bit rateusage parameter controlselective cell discard
 Summary | Full Text:PDF(1MB)

Performance Evaluation of TCP/IP Traffic Using Window Scale Option over Wide Area ATM Network with VBR Service Category
Shigehiro ANO Toru HASEGAWA Toshihiko KATO Kenji NARITA Kanji HOKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/11/25
Vol. E81-B  No. 11  pp. 2090-2099
Type of Manuscript:  Special Section PAPER (Special Issue on Performance and Quality of Service (QoS) of Multimedia Networks)
Category: ATM Networks
Keyword: 
ATM NetworksTCP/IPTCP window scale optionvariable bit rateusage parameter control
 Summary | Full Text:PDF(853.6KB)

Applying Reliable Data Transfer Protocol to Real Time Video Retrieval System
Teruyuki HASEGAWA Toru HASEGAWA Toshihiko KATO Kenji SUZUKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/10/25
Vol. E80-B  No. 10  pp. 1482-1492
Type of Manuscript:  Special Section PAPER (Special Issue on Network Interworking)
Category: Communication protocol
Keyword: 
real time video retrievalreliable data transfer protocolATMSSCOP
 Summary | Full Text:PDF(892.7KB)

Implementation and Performance Evaluation of High Performance CMIP Software over ATM Network
Toru HASEGAWA Akira IDOUE Toshihiko KATO Kenji SUZUKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/06/25
Vol. E80-B  No. 6  pp. 869-880
Type of Manuscript:  Special Section PAPER (Special Issue on Network Operations and Management)
Category: Protocol
Keyword: 
CMIPATMOSI
 Summary | Full Text:PDF(977.3KB)

Process Scheduler and Compiler for SDL-Based Protocol Implementation Tool
Toru HASEGAWA Takashi TAKIZUKA Shingo NOMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/03/25
Vol. E78-B  No. 3  pp. 350-361
Type of Manuscript:  PAPER
Category: Communication Software
Keyword: 
communication softwarecommunication protocolFDT (Formal Description Technique)automatic protocol implementationSDL
 Summary | Full Text:PDF(1MB)

An Acyclic Expansion-Based Protocol Verification for Communications Software
Hironori SAITO Yoshiaki KAKUDA Toru HASEGAWA Tohru KIKUNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/10/25
Vol. E75-B  No. 10  pp. 998-1007
Type of Manuscript:  Special Section PAPER (Special Issue on Communication Software Technologies)
Category: 
Keyword: 
communications softwarecommunication protocolprotocol verificationfinite state machineacyclic expansion algorithmtemporal logic
 Summary | Full Text:PDF(905.4KB)