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Video server system using IP storage in long-delay network

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3 Author(s)
Yoshihiro Nomoto ; NTT Service Integration Laboratories, NTT Corporation, 9-11 Midori-Cho 3-Chome, Musashino-Shi, Tokyo 180-8585, Japan ; Kyohei Hayashi ; Yutaka Ishibashi

We evaluate a video server system that performs streaming transmissions of consumer generated video (CGV) files. The CGV files are placed in iSCSI (i.e., SCSI over TCP/IP) storages at each individual's home, and the iSCSI storages are connected to one video server on demand. Since iSCSI uses the TCP protocol, the network delay greatly affects the iSCSI throughput. Although iSCSI storages have different network delays for video servers, it is important to design the system so that the streaming transmission quality does not depend on network delays. To ensure the fairness of streaming transmissions, we use a technique to dynamically control the number of TCP connections in the iSCSI protocol. Simulation results showed that the CGV file streaming transmission quality at 3 Mbps is stable on the condition that the round-trip times between the servers and the storages are less than 100 ms.

Published in:

2009 IEEE 13th International Symposium on Consumer Electronics

Date of Conference:

25-28 May 2009