Shohei KAMAMURA


Future Nationwide Optical Network Architecture for Higher Availability and Operability Using Transport SDN Technologies
Yoshihiko UEMATSU Shohei KAMAMURA Hiroki DATE Hiroshi YAMAMOTO Aki FUKUDA Rie HAYASHI Katsutoshi KODA 
Publication:   
Publication Date: 2018/02/01
Vol. E101-B  No. 2  pp. 462-475
Type of Manuscript:  POSITION PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
optical transport networkcommon infrastructuresupervisoryfailure recoverydeploymentnetwork architecture
 Summary | Full Text:PDF(5.8MB)

Recommendation-Based Bandwidth Calendaring for Packet Transport Network
Shohei KAMAMURA Rie HAYASHI Hiroki DATE Hiroshi YAMAMOTO Takashi MIYAMURA Yoshihiko UEMATSU Kouichi GENDA 
Publication:   
Publication Date: 2017/01/01
Vol. E100-B  No. 1  pp. 122-130
Type of Manuscript:  PAPER
Category: Network
Keyword: 
bandwidth calendaringpacket transport networkrecommendationresource allocationSDN controller
 Summary | Full Text:PDF(2.3MB)

Fast and Flow-Controlled Multi-Stage Network Recovery from Large-Scale Physical Failures
Kouichi GENDA Hiroshi YAMAMOTO Shohei KAMAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/08/01
Vol. E99-B  No. 8  pp. 1824-1834
Type of Manuscript:  PAPER
Category: Network
Keyword: 
network recoverylarge-scale failureflow controlbandwidth allocationlinear programming
 Summary | Full Text:PDF(993.3KB)

Fast Repairing from Large-Scale Failure Using Hierarchical SDN Controllers
Shohei KAMAMURA Hiroshi YAMAMOTO Kouichi GENDA Yuki KOIZUMI Shin'ichi ARAKAWA Masayuki MURATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/11/01
Vol. E98-B  No. 11  pp. 2269-2279
Type of Manuscript:  PAPER
Category: Network
Keyword: 
fast repairinghierarchical architectureIP over WDM networknetwork configurationSDN controller
 Summary | Full Text:PDF(2.7MB)

A New Content-Oriented Traffic Engineering for Content Distribution: CAR (Content Aware Routing)
Shigeyuki YAMASHITA Daiki IMACHI Miki YAMAMOTO Takashi MIYAMURA Shohei KAMAMURA Koji SASAYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/04/01
Vol. E98-B  No. 4  pp. 575-584
Type of Manuscript:  PAPER
Category: Network System
Keyword: 
traffic engineeringtraffic matrixcontent-oriented routing
 Summary | Full Text:PDF(2.6MB)

Disaster Recovery for Transport Network through Multiple Restoration Stages
Shohei KAMAMURA Daisaku SHIMAZAKI Kouichi GENDA Koji SASAYAMA Yoshihiko UEMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/01/01
Vol. E98-B  No. 1  pp. 171-179
Type of Manuscript:  PAPER
Category: Network System
Keyword: 
linear programmingdisaster recoverymultiple stagespareto-optimizationrestoration
 Summary | Full Text:PDF(2MB)

Autonomous IP Fast Rerouting with Compressed Backup Flow Entries Using OpenFlow
Shohei KAMAMURA Daisaku SHIMAZAKI Atsushi HIRAMATSU Hidenori NAKAZATO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/02/01
Vol. E96-D  No. 2  pp. 184-192
Type of Manuscript:  Special Section PAPER (Special Section on The Internet Architectures, Protocols, and Applications for Diversified Futures)
Category: 
Keyword: 
flow table compressionimplementationIP fast reroutingOpenFlowrestoration
 Summary | Full Text:PDF(1.1MB)

Loop-Free IP Fast Rerouting Considering Double-Link Failures
Shohei KAMAMURA Daisaku SHIMAZAKI Atsushi HIRAMATSU Hidenori NAKAZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3811-3821
Type of Manuscript:  PAPER
Category: Network
Keyword: 
backup topologiesdiversityIP fast reroutingloop-freemultiple failuresnetwork similarity
 Summary | Full Text:PDF(2.3MB)

Scalable Backup Configurations Creation for IP Fast Reroute
Shohei KAMAMURA Takashi MIYAMURA Yoshihiko UEMATSU Kohei SHIOMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 109-117
Type of Manuscript:  PAPER
Category: Internet
Keyword: 
backup configurationIP Fast RerouteMRCrobustnessscalability
 Summary | Full Text:PDF(990.4KB)