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01-Applied Mathematics & Information Sciences
An International Journal


Volumes > Volume 09 > No. 3


Transcoding in Two-class P2P Streaming Systems

PP: 1549-1556
Shuai Zeng, Lemin Li, Dan Liao,
We study the issue of P2P streaming system with transcoding and expose the fundamental characteristics and mathematical theory of the system in the two-class network structure. We find out and prove that, in a two-class P2P streaming system, to provide peers receiving data above some given flow rate, there is a lower bound of source server load. We give an algorithm to achieve this minimal server load. We also compare the minimal server load by our algorithm with typical traditional design without transcoding in various situations in our simulation experiments, and analyze how much benefit system can get from the utilization of transcoding technique. The results show that, if transcoding technique is utilized appropriately, better performance of two-class P2P streaming system can be achieved.

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