Shohei KAMAMURA


Distributed IP Refactoring: Cooperation with Optical Transport Layer and Centralized SDN
Shohei KAMAMURA Aki FUKUDA Hiroki MORI Rie HAYASHI Yoshihiko UEMATSU 
Publication:   
Publication Date: 2018/07/01
Vol. E101-B  No. 7  pp. 1661-1674
Type of Manuscript:  PAPER
Category: Network System
Keyword: 
BGPIP optical cooperationIP refactoringnetwork reconfigurationOSPFsoftware defined networkstate migration
 Summary | Full Text:PDF(3.8MB)

Regulated Transport Network Design Using Geographical Resolution
Shohei KAMAMURA Aki FUKUDA Rie HAYASHI Yoshihiko UEMATSU 
Publication:   
Publication Date: 2018/03/01
Vol. E101-B  No. 3  pp. 805-815
Type of Manuscript:  PAPER
Category: Network
Keyword: 
graph miningIP over DWDMoptical transport networkoptimizationRWA problemsubgraph isomorphism problem
 Summary | Full Text:PDF(2.3MB)

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)