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Resource-aware replication strategies in P2P VoD services with scalable video streams

机译:具有可伸缩视频流的P2P VoD服务中的资源感知复制策略

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This article aims to discuss the replication principle that underlies correlations between peer-network conditions and video quality impacts over unstructured peer-to-peer (P2P) video-on-demand (VoD) overlay networks. In particular, the conditions of a network path among peers, such as communication latencies, packet buffer status, and upload bandwidth, can be used to develop failover mechanisms that enable recovery from a failure in part of the P2P VoD system. The failure recovery can be accomplished by using the resource-aware replication strategy, which can deploy high video quality impacts and popular media-data replicas to the movie time-scale of low averaged resource rate and discontinuous area. The simulation results demonstrate that replicas of popular and high video-distortion data are significant and reflect physical demands. In addition, the averaged visual quality of video can be enhanced, and the load imposed on a VoD server can be reduced, through facilitating proper progression of replication strategy.
机译:本文旨在讨论基于非结构化点对点(P2P)视频点播(VoD)覆盖网络的对等网络条件与视频质量影响之间的相关关系的复制原理。尤其是,对等点之间的网络路径状况(例如通信等待时间,数据包缓冲区状态和上载带宽)可用于开发故障转移机制,从而实现部分P2P VoD系统中的故障恢复。故障恢复可以通过使用资源感知的复制策略来完成,该策略可以将高视频质量影响和流行的媒体数据副本部署到平均资源率低且不连续区域的电影时间尺度上。仿真结果表明,流行的和高视频失真数据的副本非常重要,并反映了物理需求。此外,通过促进复制策略的适当进行,可以提高视频的平均视觉质量,并可以减轻VoD服务器上的负载。

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