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| A Proxy-Caching Scheduler Based on P2P Cooperation |
| Tang Rui-chun; Wei Qing-lei; Liu Bin |
| Department of Computer Science and Technology, Ocean University of China, Qingdao 266100, China |
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Abstract Lack of cache and service time-delay in the media streaming system are considered. PCSPC (Proxy- Caching Scheduler based on P2P Cooperation) is proposed. First according to the principle that more popular data are assigned more cache, corresponding cache is allocated to every media file’s prefix. And then prefix sequence and proxy sequence are sorted in ascending and descending order respectively by transmission cost, and this method can reduce transmission cost effectively, which is proved by mathematical method. Both cache efficiency and transmission cost are considered in PCSPC. Simulation results show the effectiveness of the strategy.
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Received: 10 September 2008
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2009, Vol. 31 
