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在基于P2P的流媒体系统中CDN服务器负载优化算法 被引量:1

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摘要 VOD视频系统中为了能够缓解服务器压力,往往使用P2P与CDN结合的技术。但是传统的缓存完整视频副本的CDN无法灵活地应对动态变化的请求量。在分级的CDN中,每个CDN服务器根据视频的热度动态调整存储的视频容量则可以在CDN的性能与成本之间做到动态的平衡。在本文则是分析了基于P2P的流媒体系统中数据段的传输策略,并根据传输策略设计了一种预测CDN服务器的缓存需求的算法指导CDN服务器进行缓存的替换,以提高CDN服务器的缓存命中率。
作者 张惊
出处 《科技传播》 2015年第2期171-175,共5页 Public Communication of Science & Technology
关键词 P2P 流媒体 CDN
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参考文献12

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