Modeling and evaluation of overlay generation problem for peer-assisted video adaptation and streaming

Authors:
Razib Iqbal;Behnoosh Hariri;Shervin Shirmohammadi
Affiliations:
University of Ottawa, Ottawa, Ontario, Canada;University of Ottawa, Ottawa, Ontario, Canada and Sharif University of Technology, Tehran, Iran;University of Ottawa, Ottawa, Ontario, Canada
Venue:
Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video
Year:
2008

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Abstract

In this paper, we consider the problem of overlay generation for video adaptation and streaming applications in a way to efficiently utilize the bandwidth and computing power of the participating peers. Therefore, the proposed architecture performs regular streaming functions as well as video adaptation functions, moving the video contents adaptation computation load away from dedicated media-streaming/adaptation servers to the participating peers. To verify the performance of our design, we followed an analytical approach based on 0-1 Integer Linear Programming method to model the system and to calculate the optimum overlay. The performance of our scheme is evaluated by simulations. Preliminary results demonstrate that our design performance nearly follows the optimal boundary in terms of resource utilization.