Ryota KAWASHIMA


A Replication Protocol Supporting Multiple Consistency Models without Single Point of Failure
Atsushi OHTA Ryota KAWASHIMA Hiroshi MATSUO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/12/01
Vol. E99-D  No. 12  pp. 3013-3023
Type of Manuscript:  Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking)
Category: Database system
Keyword: 
distributed databasedata replicationconsistency model
 Summary | Full Text:PDF(1.3MB)

A Software Approach of Controlling the CPU Resource Assignment in Network Virtualization
Shin MURAMATSU Ryota KAWASHIMA Shoichi SAITO Hiroshi MATSUO Hiroki NAKAYAMA Tsunemasa HAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/11/01
Vol. E98-B  No. 11  pp. 2171-2179
Type of Manuscript:  Special Section PAPER (Special Section on Network Systems for Virtualized Environment)
Category: 
Keyword: 
software-defined networkingnetwork virtualizationnetwork functions virtualizaionvirtual switchReceive Side Scaling (RSS)
 Summary | Full Text:PDF(2.8MB)

Accelerating the Performance of Software Tunneling Using a Receive Offload-Aware Novel L4 Protocol
Ryota KAWASHIMA Hiroshi MATSUO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/11/01
Vol. E98-B  No. 11  pp. 2180-2189
Type of Manuscript:  Special Section PAPER (Special Section on Network Systems for Virtualized Environment)
Category: 
Keyword: 
Software-Defined Networkingnetwork virtualizationNetwork Function Virtualizationdatacenter networks
 Summary | Full Text:PDF(1.9MB)

Non-tunneling Overlay Approach for Virtual Tenant Networks in Cloud Datacenter
Ryota KAWASHIMA Hiroshi MATSUO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/11/01
Vol. E97-B  No. 11  pp. 2259-2268
Type of Manuscript:  Special Section PAPER (Special Section on Network Virtualization, and Fusion Platform of Computing and Networking)
Category: 
Keyword: 
SDNOpenFlownetwork virtualizationoverlaydatacenter
 Summary | Full Text:PDF(2MB)

FreeNA: A Multi-Platform Framework for Inserting Upper-Layer Network Services
Ryota KAWASHIMA Yusheng JI Katsumi MARUYAMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2009/10/01
Vol. E92-D  No. 10  pp. 1923-1933
Type of Manuscript:  Special Section PAPER (Special Section on New Technologies and their Applications of the Internet)
Category: QoS and Quality Management
Keyword: 
upper-layer servicestransparent functions insertionsystem-call interpositionmulti-platform frameworkSSL
 Summary | Full Text:PDF(953.2KB)