中国海洋大学学报(自然科学版)
中國海洋大學學報(自然科學版)
중국해양대학학보(자연과학판)
PERIODICAL OF OCEAN UNIVERSITY OF CHINA
2010年
1期
104-108
,共5页
流媒体%视频点播%分层P2P系统%簇缓存
流媒體%視頻點播%分層P2P繫統%簇緩存
류매체%시빈점파%분층P2P계통%족완존
streaming media%VOD%hierarchy P2P system%cluster cache
研究P2P流媒体点播中普遍存在的启动时间长、传输抖动大的问题,提出了1种基于簇缓存的节点选择策略.通过在簇内缓存节点的查询记录和部分媒体块,并在带宽优先的基础上,结合节点寿命进行资源节点选择,降低播放抖动率.仿真实例说明了该策略的有效性.
研究P2P流媒體點播中普遍存在的啟動時間長、傳輸抖動大的問題,提齣瞭1種基于簇緩存的節點選擇策略.通過在簇內緩存節點的查詢記錄和部分媒體塊,併在帶寬優先的基礎上,結閤節點壽命進行資源節點選擇,降低播放抖動率.倣真實例說明瞭該策略的有效性.
연구P2P류매체점파중보편존재적계동시간장、전수두동대적문제,제출료1충기우족완존적절점선택책략.통과재족내완존절점적사순기록화부분매체괴,병재대관우선적기출상,결합절점수명진행자원절점선택,강저파방두동솔.방진실례설명료해책략적유효성.
Considering the long start-up delay and large transmission jitter in P2P on-demand streaming media, Cluster Cache based Peer Selection Strategy(CCPSS) is proposed. First the peers lookup records and the part of media blocks are cached, then based on bandwidth priority as well as node life, the resource peers are selected to decline start-up delay and the playback jitter rate. Simulation results show the validity of the proposed strategy.