Exploiting the Fair Share to Smoothly Transport Layered Encoded Video into Proxy Caches

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Exploiting the Fair Share to Smoothly Transport Layered Encoded Video into Proxy Caches (2001)

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by Michael Zink , Carsten Griwodz , Jens Schmitt , Ralf Steinmetz

Venue:	IN PROCEEDINGS OF SPIE/ACM CONFERENCE ON MULTIMEDIA COMPUTING AND NETWORKING (MMCN
Citations:	6 - 3 self

BibTeX

@INPROCEEDINGS{Zink01exploitingthe,
    author = {Michael Zink and Carsten Griwodz and Jens Schmitt and Ralf Steinmetz},
    title = {Exploiting the Fair Share to Smoothly Transport Layered Encoded Video into Proxy Caches},
    booktitle = {IN PROCEEDINGS OF SPIE/ACM CONFERENCE ON MULTIMEDIA COMPUTING AND NETWORKING (MMCN},
    year = {2001},
    pages = {61--72},
    publisher = {}
}

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Abstract

In contrast to classical assumptions in Video on Demand (VoD) research, the main requirements for VoD in the Internet are adaptiveness, support of heterogeneity, and last not least high scalability. Hierarchically layered video encoding is particularly well suited to deal with adaptiveness and heterogeneity support for video streaming. A distributed caching architecture is key to a scalable VoD solution in the Internet. Thus, the combination of caching and layered video streaming is promising for an Internet VoD system, yet, requires thoughts about some new issues and challenges, e.g., how to keep layered transmissions TCP-friendly. In this paper, we investigate one particular of these issues: how can a TCP-friendly transmission exploit its fair share of network resources taking into account that the constrained granularity of layer encoded video inhibits an exact adaptation to actual transmission rates. We present a new technique that makes use of retransmissions of missing segments for a cached layered video to claim the fair share within a TCP-friendly session. Based on simulative experiments the potential and applicability of the technique, which we also call fair share claiming is shown. Moreover, a design for the integration of fair share claiming in streaming applications which are supported by caching is devised.

Keyphrases

fair share proxy cache smoothly transport layered encoded video scalable vod solution main requirement fair share claiming tcp-friendly session actual transmission rate classical assumption distributed caching architecture exact adaptation simulative experiment network resource new issue layered video encoding new technique cached layered video video streaming high scalability heterogeneity support layered video streaming internet vod system layered transmission constrained granularity tcp-friendly transmission