On the Design of Efficient Video-on-Demand Broadcast Schedules

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On the Design of Efficient Video-on-Demand Broadcast Schedules (1999)

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by Ailan Hu, et al.

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@MISC{Hu99onthe,
    author = {Ailan Hu and et al.},
    title = {On the Design of Efficient Video-on-Demand Broadcast Schedules},
    year = {1999}
}

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Abstract

In order to address the scalability problems of Video– on–Demand systems, several periodic broadcast schemes have been proposed that partition a video into segments and repetitively broadcast each segment on a separate channel. A new scheme is presented for the bandwidth–efficient periodic broadcast of video. The proposed scheme determines the segment sizes and their corresponding channel bandwidths as a result of a non–linear optimization problem which minimizes the total required bandwidth for the broadcast. The new scheme outperforms the existing schemes in terms of bandwidth demands while it also decouples the playout latency from the number of available channels. Further analysis reveals that its asymptotic bandwidth requirements exactly match the asymptotic bandwidth requirements reported for Poly-Harmonic Broadcasting.

Keyphrases

efficient video-on-demand broadcast schedule new scheme asymptotic bandwidth requirement bandwidth demand several periodic broadcast scheme demand system proposed scheme available channel segment size total required bandwidth scalability problem analysis reveals separate channel poly-harmonic broadcasting non linear optimization problem bandwidth efficient periodic broadcast corresponding channel bandwidth playout latency

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