基于CDN和P2P混合系统的流媒体调度策略

提出了基于CDN和P2P混合系统的流媒体调度策略。在原有CDN系统架构的基础上,增加了代理服务器之间的P2P协作功能。按照IP最近匹配的原则,能够保证在代理服务器之间流媒体文件传输时间达到最小。对缓存空间中的内容,按照流媒体文件的流行度对其进行排序并更新,达到充分利用缓存空间的目的。仿真结果表明,本文提出的调度策略能有效减小用户延迟,达到资源共享。

Propose streaming media scheduling strategy based on CDN and P2P hybrid system. In the original CDN system architecture, add P2P collaboration function among proxies. According to the IP matching principle, guarantee the transmission time of streaming media file minimum between proxies. Order and update the content of caching space to make use of the caching space. Simulation results show that the scheduling strategy proposed can reduce client delay and share resource effectively.