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Proceedings Paper

Bandwidth skimming: a technique for cost-effective video on demand
Author(s): Derek L. Eager; Mary K. Vernon; John Zahorjan
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Paper Abstract

This paper proposes a new technique for on-demand delivery of streaming media. The idea is to hold in reserve, or `skim', a portion of the client reception bandwidth that is sufficiently small that display quality is not impacted significantly, and yet that is nonetheless enough to support substantial reductions in server and network bandwidth through near-optimal hierarchical client stream merging. In this paper we show that this objective is feasible, and we develop practical techniques that achieve it. The results indicate that server and network bandwidth can be reduced to on the order of the logarithm of the number of clients who are viewing the object, using a small `skim' (e.g., 15%) of client reception bandwidth. These low server and network bandwidths are achieved for every media file, while providing immediate service to each client, and without having to pre-load initial portions of the video at each client.

Paper Details

Date Published: 27 December 1999
PDF: 10 pages
Proc. SPIE 3969, Multimedia Computing and Networking 2000, (27 December 1999); doi: 10.1117/12.373523
Show Author Affiliations
Derek L. Eager, Univ. of Saskatchewan (Canada)
Mary K. Vernon, Univ. of Wisconsin/Madison (United States)
John Zahorjan, Univ. of Washington (Canada)


Published in SPIE Proceedings Vol. 3969:
Multimedia Computing and Networking 2000
Klara Nahrstedt; Wu-chi Feng, Editor(s)

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