An adaptive video multicast scheme for varying workloads

    Authors

    K. A. Hua; J. H. Oh;K. Vu

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Multimedia Syst.

    Keywords

    video multicast; adaptive scheduling; performance evaluation; service; latency; system throughput; ON-DEMAND SERVICE; MULTIMEDIA; SYSTEMS; SERVER; DESIGN; Computer Science, Information Systems; Computer Science, Theory &; Methods

    Abstract

    Periodic broadcast and scheduled multicast have been shown to be very effective in reducing the demand on server bandwidth. While periodic broadcast is better for popular videos, scheduled multicast is more suitable for less popular ones. Work has also been done to show that a hybrid of these techniques offer the best performance. Existing hybrid schemes, however, assume that the characteristic of the workload does not change with time. This assumption is not true for many applications, such as movie on demand, digital video libraries, or electronic commerce. In this paper, we show that existing scheduled multicast techniques are not suited for hybrid designs. To address this issue, we propose a new approach and use it to design an adaptive hybrid strategy. Our technique adjusts itself to cope with a changing workload. We provide simulation results to demonstrate that the proposed technique is significantly better than the best static approach in terms of service latency, throughput, defection rate, and unfairness.

    Journal Title

    Multimedia Systems

    Volume

    8

    Issue/Number

    4

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    258

    Last Page

    269

    WOS Identifier

    WOS:000178267600001

    ISSN

    0942-4962

    Share

    COinS