A Request Scheduling Strategy using Client's Buffer in VOD Systems


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 7, No. 2, pp. 337-346, Feb. 2000
10.3745/KIPSTE.2000.7.2.337,   PDF Download:

Abstract

In a VOD(video-on-demand) system, a scheduling strategy is designed to increase the system efficiency and to satisfy the isochronous requirements of showing a video to multiple viewers with one disk access. In this paper, we have proposed the Stream Relay Scheme (SRS) which utilizes the client''s buffer space to reduce the server''s disk I/O, buffer consumption, and stream capacity. Under the SRS which we have proposed in this paper, the server does not service all the requests directly but forwards the new request selectively to the client who is being served currently in order to reduce the initial latency and increase the system throughput. The SRS-BAT which integrated the SRS with the Batching technique is introduced. The results of the simulated experiments which compared the SRS with the conventional technique have shown the noticeable performance improvements in terms of initial latency and the server throughput.


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Cite this article
[IEEE Style]
K. H. Han, J. H. Kim, Y. H. Won, "A Request Scheduling Strategy using Client's Buffer in VOD Systems," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 7, no. 2, pp. 337-346, 2000. DOI: 10.3745/KIPSTE.2000.7.2.337.

[ACM Style]
Kum Hee Han, Jong Hoon Kim, and Yoo Hun Won. 2000. A Request Scheduling Strategy using Client's Buffer in VOD Systems. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 7, 2, (2000), 337-346. DOI: 10.3745/KIPSTE.2000.7.2.337.