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UBC Theses and Dissertations

Design and Performance of a Continuous Media Server for a High-Speed Network Sonah, Bikash


In this thesis we present two multimedia architectures and a data retrieval model for supporting simultaneously multiple clients requesting files of different playback rates. After reviewing some theoretical background from previous research, we study the performance of the architectures in terms of the maximum number of concurrent video streams they can support using circular SCAN disk scheduling policy. We present new techniques, namely, the maximum operation set and the Rate-based Buffer Weighting Scheme, not only to adapt the system to streams of different playback rates but also to relieve the processing load on the server. Next, we devise a new way of designing the Admission Control for both architectures. The new Admission Control is simple, effective and efficient. Finally we compare the merits of the architectures in terms of throughput, contention, client buffer size and reliability.

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