Ryoichi SHINKUMA


Traffic Engineering of Peer-Assisted Content Delivery Network with Content-Oriented Incentive Mechanism
Naoya MAKI  Takayuki NISHIO  Ryoichi SHINKUMA  Tatsuya MORI  Noriaki KAMIYAMA  Ryoichi KAWAHARA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/12/01
Vol. E95-D  No. 12  pp. 2860-2869
Type of Manuscript: Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking)
Category: Network and Communication
Keyword: 
content delivery networkpeer-assisted networkcontents combinationscombining contentstraffic localization
  Summary |  Full Text:PDF (844.3KB)

Route Instruction Mechanism for Mobile Users Leveraging Distributed Wireless Resources
Takeshi KAKEHI  Ryoichi SHINKUMA  Tutomu MURASE  Gen MOTOYOSHI  Kyoko YAMORI  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/06/01
Vol. E95-B  No. 6  pp. 1965-1973
Type of Manuscript: Special Section PAPER (Special Section on Towards Management for Future Networks and Services)
Category: 
Keyword: 
wireless bandwidthroute instructiontraffic balancingsystem modeling
  Summary |  Full Text:PDF (2.2MB)

TXOP Exchange: A Mechanism for Cooperation in CSMA Networks
Takayuki NISHIO  Ryoichi SHINKUMA  Tatsuro TAKAHASHI  Narayan B. MANDAYAM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/06/01
Vol. E95-B  No. 6  pp. 1944-1952
Type of Manuscript: Special Section PAPER (Special Section on Towards Management for Future Networks and Services)
Category: 
Keyword: 
cooperative mechanismTXOP ExchangeCSMA/CAwireless local area networklegacy neutrality
  Summary |  Full Text:PDF (1.2MB)

Virtual Multi-AP Access for Transport-Level Quality Improvement in Wireless Local Area Networks with Hidden Stations
Koichi NISHIDE  Hiroyuki KUBO  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/12/01
Vol. E93-D  No. 12  pp. 3251-3259
Type of Manuscript: Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking)
Category: 
Keyword: 
wireless LANhidden-station problemtransport protocolthroughput
  Summary |  Full Text:PDF (684.8KB)

Social Network Based P2P Multicast Reducing Psychological Forwarding Cost in Mobile Networks
Hiroyuki KUBO  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/12/01
Vol. E93-D  No. 12  pp. 3260-3268
Type of Manuscript: Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking)
Category: 
Keyword: 
mobile P2P multicastpsychological costcooperation problemexperimental measurement
  Summary |  Full Text:PDF (1.4MB)

Incentive Mechanism for P2P Content Sharing over Heterogenous Access Networks
Kenichiro SATO  Ryo HASHIMOTO  Makoto YOSHINO  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/12/01
Vol. E91-B  No. 12  pp. 3821-3830
Type of Manuscript: Special Section PAPER (Special Section on Peer to Peer Networking Technology)
Category: 
Keyword: 
P2P content sharingincentiverewardservice differentiationcost
  Summary |  Full Text:PDF (1.1MB)

Incentive-Rewarding Mechanism for User-position Control in Mobile Services
Makoto YOSHINO  Kenichiro SATO  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/10/01
Vol. E91-B  No. 10  pp. 3132-3140
Type of Manuscript: Special Section PAPER (Special Section on Next-Generation Mobile Multimedia Communications)
Category: 
Keyword: 
incentive rewardcostradio resourceuser position control
  Summary |  Full Text:PDF (597.3KB)

Frame Length Control for Wireless LANs in Fast Mobile Environments
Ryoichi SHINKUMA  Takayuki YAMADA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/07/01
Vol. E91-A  No. 7  pp. 1580-1588
Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
fast-mobile environmentroad-vehicle communicationwireless local area networkrelative speedframe length
  Summary |  Full Text:PDF (1.2MB)

Incentive Service Differentiation for P2P Content Sharing by Wireless Users
Masato YAMADA  Kenichiro SATO  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Vol. E90-B  No. 12  pp. 3561-3571
Type of Manuscript: PAPER
Category: Network
Keyword: 
P2P content sharing by wireless userwireless P2Pincentiveservice differentiationwireless QoSgame theory
  Summary |  Full Text:PDF (692.2KB)

Performance Evaluation of Inter-Vehicle Packet Relay for Road-Vehicle Communication in Fast Mobile Environment
Takayuki YAMADA  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2552-2561
Type of Manuscript: PAPER
Category: Terrestrial Radio Communications
Keyword: 
road-vehicle communicationinter-vehicle communicationrelative mobile speedpropagation modelperformance evaluation
  Summary |  Full Text:PDF (1015.3KB)

Channel Quality Improvement by Inter-Vehicle Packet Relay in Road Vehicle Communication Systems
Takayuki YAMADA  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/02/01
Vol. E90-B  No. 2  pp. 425-428
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
Keyword: 
road-vehicle communicationinter-vehicle communicationrelative mobile speedDoppler shift
  Summary |  Full Text:PDF (235.8KB)

Cooperative Networking Based on Infrastructure Multihop Architecture in Heterogeneous Mobile Networks
Masato YAMADA  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/10/01
Vol. E89-B  No. 10  pp. 2763-2773
Type of Manuscript: Special Section PAPER (Special Section on Mobile Multimedia Communications)
Category: 
Keyword: 
heterogeneous mobile networkinfrastructure multihopcooperative networking3G cellularWLAN
  Summary |  Full Text:PDF (1000.2KB)

Distributed Channel Access for QoS Control in Link Adaptive Wireless LANs
Ryoichi SHINKUMA  Junpei MAEDA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/06/01
Vol. E89-B  No. 6  pp. 1846-1855
Type of Manuscript: PAPER
Category: Terrestrial Radio Communications
Keyword: 
wireless LANIEEE802.11eQoS controldistributed channel accesslink adaptationfairness
  Summary |  Full Text:PDF (748.9KB)

An Application of Uplink Common Channel to Packet Relay in CDMA Radio Access Networks
Satoshi OKADA  Ryoichi SHINKUMA  Tatsuro TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1800-1808
Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Network
Keyword: 
3G radio access networkstwo-hop relayingdead spotrandom access channel
  Summary |  Full Text:PDF (667.7KB)

A New Resource Management Scheme for Multiple Video Transmission in Wireless Environment
Ryoichi SHINKUMA  Minoru OKADA  Shozo KOMAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2153-2160
Type of Manuscript: Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
wireless communicationradio resource managementadaptive transmissionvideo stream transmission
  Summary |  Full Text:PDF (691.4KB)

Adaptive Transmission Scheme for Web Prefetching in Wireless Environment
Ryoichi SHINKUMA  Minoru OKADA  Shozo KOMAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/03/01
Vol. E85-C  No. 3  pp. 485-491
Type of Manuscript: Special Section PAPER (Special Issue on Signals, Systems and Electronics Technology)
Category: Signal Processing
Keyword: 
wireless communicationadaptive transmissionworld wide webprefetch
  Summary |  Full Text:PDF (450.6KB)