Efficient data retrieval scheme to improve service capacity of a VBR video server

Shiao-Li Tsao*, Yueh Min Huang, Shiang Chun Liou, Jar Ching Lin, Jen Wen Ding, Jyh Ming Wang, Ho Li Wang

*Corresponding author for this work

Research output: Contribution to conferencePaper

Abstract

The variable bit rate (VBR) nature of a video stream makes it difficult to build up a video server since that the amount of system resources supporting a VBR stream is time-variant. This property results in poor utilization of system resources due to that a VBR video server may be overloaded in some critical times but underutilized frequently. An efficient data retrieval scheme for VBR video servers is presented in this paper. The basic concept behind the scheme is that we can efficiently utilize the disk bandwidth by using read-ahead and buffering technique. Then, irregular resource usage of a VBR video server can be alleviated and the service capacity can thus be promoted. According to experimental results, we find that the proposed scheme can improve 8%-20% number of served users of a VBR VOD system than the original method with less than 6% additional buffer.

Original languageEnglish
Pages1088-1092
Number of pages5
DOIs
StatePublished - 1 Dec 1997
EventProceedings of the 1997 1st International Conference on Information, Communications and Signal Processing, ICICS. Part 3 (of 3) - Singapore, Singapore
Duration: 9 Sep 199712 Sep 1997

Conference

ConferenceProceedings of the 1997 1st International Conference on Information, Communications and Signal Processing, ICICS. Part 3 (of 3)
CitySingapore, Singapore
Period9/09/9712/09/97

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