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Design and analysis of variable bit rate caching strategies for continuous media data

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2 Author(s)
Ligang Dong ; Coll. of Inf. & Electron. Eng., Hangzhou Univemity of Commerce, Zhejiang, China ; Veeravalli, B.

We designed and analyzed three variable bit rate caching strategies for continuous media data. Firstly, we use a just-in-time scheme to improve the utilization efficiency of the resource (the cache space and the cache I/O bandwidth). Secondly, the assumption of constant retrieval bandwidth in past caching algorithms is nearly impossible in a practical multimedia system. We propose the strategy used in the case of variable retrieval bandwidth as well as constant retrieval bandwidth. Thirdly, the phenomena of "switching" in past caching algorithms significantly impacts the system performance, therefore, we propose and satisfy a non-switch constraint, so that the probability of a switching operation is reduced to a maximum extent. The simulation result confirms our analysis.

Published in:

Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on  (Volume:1 )

Date of Conference:

27-30 June 2004

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