Tomoyuki OHTA


Mobile Agent-Based Information Dissemination Scheme Using Location Information in Vehicular Ad Hoc Networks
Takeshi HASHIMOTO Junich AOKI Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/09/01
Vol. E99-B  No. 9  pp. 1958-1966
Type of Manuscript:  Special Section PAPER (Special Section on Integration Technologies of Ambient Intelligence and Sensor Networks)
Category: 
Keyword: 
VANETsinformation disseminationmobile agentslocation information
 Summary | Full Text:PDF(3MB)

An Inter-Domain Routing Protocol Based on Autonomous Clustering for Heterogeneous Mobile Ad Hoc Networks
Keisei OKANO Yuto AOKI Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/09/01
Vol. E98-B  No. 9  pp. 1768-1776
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Technologies on Ambient Sensor Networks toward Future Generation)
Category: 
Keyword: 
heterogeneous MANETsrouting protocolclustering
 Summary | Full Text:PDF(1.3MB)

Mobile Agent Migration Mechanism Adaptive to Service Dissemination and Collection for Mobile Ad Hoc Networks
Tomoyuki OHTA Shuhei ISHIZUKA Takeshi HASHIMOTO Yoshiaki KAKUDA Atsushi ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/03/01
Vol. E97-B  No. 3  pp. 610-619
Type of Manuscript:  PAPER
Category: Network
Keyword: 
mobile ad hoc networkservice discoverymobile agent
 Summary | Full Text:PDF(1.3MB)

A Data Transfer Scheme Based on Autonomous Clustering with Positions and Moving Direction of Vehicles for VANETs
Yasuharu OHTA Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/09/01
Vol. E95-B  No. 9  pp. 2728-2739
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Technologies and Applications for Ad Hoc and Wireless Mesh Networks)
Category: 
Keyword: 
vehicular ad-hoc networksclusteringepidemic routingpositioning information
 Summary | Full Text:PDF(1.8MB)

New Safety Support System for Children on School Routes Using Mobile Ad Hoc Networks
Atsushi ITO Yoshiaki KAKUDA Tomoyuki OHTA Shinji INOUE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 18-29
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems Technologies and Their Application to Networked Systems)
Category: Assurance
Keyword: 
mobile ad hoc networksafety support system for childrenBluetoothmobile phone
 Summary | Full Text:PDF(2.2MB)

A Hierarchical Geographical Routing with Alternative Paths Using Autonomous Clustering for Mobile Ad Hoc Networks
Hiroshi NAKAGAWA Satoshi TESHIMA Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 37-44
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems Technologies and Their Application to Networked Systems)
Category: Assurance
Keyword: 
ad hoc networksautonomous clusteringgeographical routing
 Summary | Full Text:PDF(1.1MB)

Improvement of Dependability against Node Capture Attacks for Wireless Sensor Networks
Eitaro KOHNO Tomoyuki OHTA Yoshiaki KAKUDA Masaki AIDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/01/01
Vol. E94-D  No. 1  pp. 19-26
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems Technologies and Their Application to Networked Systems)
Category: Assurance
Keyword: 
wireless sensor networkssecuritynode capture attacksecret sharing schemekey refreshment
 Summary | Full Text:PDF(452.7KB)

An Equivalent Division Method for Reducing Test Cases in State Transition Testing of MANET Protocols
Hideharu KOJIMA Juichi TAKAHASHI Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/03/01
Vol. E92-B  No. 3  pp. 794-806
Type of Manuscript:  Special Section PAPER (Special Section on Ad Hoc and Mesh Networking for Next Generation Access Systems)
Category: 
Keyword: 
state transition testingmobile ad hoc network protocolsnetwork protocol testing
 Summary | Full Text:PDF(417.5KB)

A Hierarchical Multicast Routing Using Inter-Cluster Group Mesh Structure for Mobile Ad Hoc Networks
Izumi YAMAMOTO Kazuki OGASAWARA Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/01/01
Vol. E92-B  No. 1  pp. 114-125
Type of Manuscript:  Special Section PAPER (Special Section on Networking Technologies for Dependable Networks)
Category: 
Keyword: 
ad hoc networksmulticast routing
 Summary | Full Text:PDF(748.4KB)

A Hybrid Greedy Routing with Location Information for Mobile Ad Hoc Networks
Hiroshi NAKAGAWA Kazuyuki NAKAMARU Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/09/01
Vol. E91-B  No. 9  pp. 2806-2817
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems Theories and Application Deployments)
Category: Ad Hoc Networks
Keyword: 
ad hoc networksgeographical routing
 Summary | Full Text:PDF(837.9KB)

Route-Split Routing Resilient to Simultaneous Failure for Mobile Ad Hoc Networks
Tsuyoshi MIZUMOTO Tomoyuki OHTA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/07/01
Vol. E91-A  No. 7  pp. 1625-1633
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
ad hoc networksroutingsimultaneous failure
 Summary | Full Text:PDF(475.1KB)

Development of a Topology Controllable Testing Environment for Mobile Ad Hoc Network Software
Atsushi KAWANO Tomoyuki OHTA Kaori MAEDA Kenji ISHIDA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/11/01
Vol. E90-B  No. 11  pp. 3104-3107
Type of Manuscript:  Special Section LETTER (Special Section on Next Generation Network Management)
Category: 
Keyword: 
mobile ad hoc networkssoftware testing
 Summary | Full Text:PDF(292.2KB)

A Dynamic Index Allocation Scheme for Data Retrieval and Provision in Peer-to-Peer Networks
Atsushi ITO Tomoyuki OHTA Kouichi MITSUKAWA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/09/01
Vol. E89-B  No. 9  pp. 2336-2346
Type of Manuscript:  Special Section PAPER (Special Section on Networking Technologies for Overlay Networks)
Category: 
Keyword: 
peer-to-peer systemdata retrievaldata provisionindex allocation
 Summary | Full Text:PDF(1MB)

An Autonomous Clustering-Based Hierarchical Multicast Routing for Mobile Ad Hoc Networks
Tomoyuki OHTA Toshifumi KAWAGUCHI Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/12/01
Vol. E88-B  No. 12  pp. 4451-4461
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems)
Category: Ad hoc, Sensor Network and P2P
Keyword: 
ad hoc networksclusteringmulticast routing
 Summary | Full Text:PDF(1.4MB)

A Class of Hierarchical Routing Protocols Based on Autonomous Clustering for Large Mobile Ad Hoc Networks
Tomoyuki OHTA Munehiko FUJIMOTO Ryotaro ODA Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/09/01
Vol. E87-B  No. 9  pp. 2500-2510
Type of Manuscript:  Special Section PAPER (Special Section on Networking Technologies for Mobile Internet Systems)
Category: Ad Hoc Network
Keyword: 
ad hoc networksclusteringhierarchical routing
 Summary | Full Text:PDF(1.4MB)

A Hierarchical Routing Protocol Based on Autonomous Clustering in Ad Hoc Networks
Tomoyuki OHTA Munehiko FUJIMOTO Shinji INOUE Yoshiaki KAKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/10/01
Vol. E86-B  No. 10  pp. 2902-2911
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Issue on Assurance Systems and Networks)
Category: Mobile Ad Hoc Networks
Keyword: 
ad hoc networkshierarchical routingclusteringautonomous decentralized systemsmobile computing
 Summary | Full Text:PDF(461.9KB)

An Adaptive Multihop Clustering Scheme for Ad Hoc Networks with High Mobility
Tomoyuki OHTA Shinji INOUE Yoshiaki KAKUDA Kenji ISHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1689-1697
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
ad hoc networksclusteringautonomous decentralized systemsmobile computing
 Summary | Full Text:PDF(304.5KB)