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Determination of Reserved Channel Capacity for Popular Videos in Video-on-Demand Systems  

하숙정 (경북대학교 전자전기컴퓨터학부)
배인한 (대구가톨릭대학교 컴퓨터정보통신공학부)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.30, no.5_6, 2003 , pp. 223-231 More about this Journal
Abstract
Video-on-Demand (VOD) service needs high resource consumption because of high bandwidth and long playback duration which are characteristics of multimedia. Various techniques such as Patching and Channel-Reserving Patching have been proposed to reduce the demand on the network-I/O bandwidth. Patching allows new clients to join an existing multicast for realization of true VOD, and Channel-Reserving Patching reserves the part of total channel capacity of video server in order to serve the requests for popular videos on which requests of users concentrate. To improve the performance of Channel-Reserving Patching, we propose the method that determines the reserved channel capacity of video server for the popular videos in this paper. The performance of our method is evaluated in terms of average servile latency, defection ratio and fairness through simulation, and is compared with those of Patching and another Channel-Reserving Patching.
Keywords
True VOD; Multimedia; Multicast; Skew; Reserved Channel Capacity; Popular Video; Patching; Patching Window; True VOD;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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