| 无线Ad Hoc网络P2P流媒体分发缓存算法 |
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| 引用本文： | 左冬红 杜旭 杨宗凯. 无线Ad Hoc网络P2P流媒体分发缓存算法[J]. 计算机科学, 2007, 34(6): 44-46 |
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| 作者姓名： | 左冬红 杜旭 杨宗凯 |
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| 作者单位： | 华中科技大学电信系,武汉,430074;华中科技大学电信系,武汉,430074;华中科技大学电信系,武汉,430074 |
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| 摘 要： | 无线Ad Hoc网络由于其传输时延较长,网络拓扑动态变化以及高丢包率,给流媒体在无线网络中的分发带来了挑战.但随着移动通信终端设备存储能力的提高,在无线Ad Hoc网络中进行P2P的流媒体分发服务成为可能.本文提出一种最小化网络总体有效传输代价的P2P流媒体分发启发式缓存算法,它是在网络总体缓存资源有限的条件下,综合考虑流媒体片段内部流行度、无线节点可靠性,以及片段实际缓存密度与期望缓存密度之差等因素,以减少流媒体分发总体传输代价为目标的启发式缓存算法,此算法能很好地减少流媒体分发起动时延,有效地减少流媒体分发在无线Ad Hoc网络中的传输代价.
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| 关 键 词： | 对等 流媒体 缓存算法 传输代价 自组织 |
The Replication Strategy for P2P Media Streaming Delivery in Wireless Ad Hoc Networks |
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| ZUO Dong-Hong,DU Xu,YANG Zong-Kai (Dept. of Electronics and Information Engineering,Huazhong Univerisity of Science and Technology,Wuhan. The Replication Strategy for P2P Media Streaming Delivery in Wireless Ad Hoc Networks[J]. Computer Science, 2007, 34(6): 44-46 |
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| Authors: | ZUO Dong-Hong DU Xu YANG Zong-Kai (Dept. of Electronics Information Engineering Huazhong Univerisity of Science Technology Wuhan |
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| Affiliation: | Dept. of Electronics and Information Engineering, Huazhong Univerisity of Science and Technology, Wuhan 430074 |
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| Abstract: | In wireless Ad Hoc networks, due to the long transmission time, dynamic network connectivity, and potentially high loss rate, media streaming delivery in such networks is challenging. But with the memory increase of mobile terminal, media streaming delive |
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| Keywords: | Peer to Peer Media streaming Cache strategy Transmission cost Ad Hoc |
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