Design and Evaluation of a Converting Patching Agent for VOD Services

Authors:
Sook-Jeong Ha;Ihn-Han Bae
Affiliations:
School of Electrical Engineering and Computer Science, Kyungpook National, University, Korea;School of Computer and Information Communication Engineering, Catholic, University of Daegu, Korea
Venue:
KES-AMSTA '07 Proceedings of the 1st KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications
Year:
2007

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Abstract

Patching is a multicast technique that reduces the demand on a server's network-I/O bandwidth by sharing the same video stream with users for true VOD services. This paper proposes a multicast technique called Converting Patching Agent that is based on Greedy Patching and can provide better performance than Grace Patching. Converting Patching Agent changes the latest multicast into a regular multicast for a new special request. It results in the significant reduction of the new multicast data for the new request. Simulation results confirm that the proposed technique is better than grace patching in terms of defection rate and average service latency.