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
4期
99-104
,共6页
流媒体%节点选择%缓存状态%服务质量%公平性
流媒體%節點選擇%緩存狀態%服務質量%公平性
류매체%절점선택%완존상태%복무질량%공평성
streaming media%supplier selection%cache state%QoS%equity
研究P2P-VoD系统中提供流媒体服务的公平性问题,提出基于缓存状态的DRPS(Data Receiving Peers as Suppliers)服务节点选择策略,并设计基于DRPS的预分配调度算法PSA(Preassign Scheduling Algorithm).首先根据缓存状态将节点分类,再结合节点的可用带宽和可用概率进行排序,优先从RS(Receiving Set)节点类中选择服务提供者,最后由客户端执行PSA算法.仿真实例表明该策略的有效性.
研究P2P-VoD繫統中提供流媒體服務的公平性問題,提齣基于緩存狀態的DRPS(Data Receiving Peers as Suppliers)服務節點選擇策略,併設計基于DRPS的預分配調度算法PSA(Preassign Scheduling Algorithm).首先根據緩存狀態將節點分類,再結閤節點的可用帶寬和可用概率進行排序,優先從RS(Receiving Set)節點類中選擇服務提供者,最後由客戶耑執行PSA算法.倣真實例錶明該策略的有效性.
연구P2P-VoD계통중제공류매체복무적공평성문제,제출기우완존상태적DRPS(Data Receiving Peers as Suppliers)복무절점선택책략,병설계기우DRPS적예분배조도산법PSA(Preassign Scheduling Algorithm).수선근거완존상태장절점분류,재결합절점적가용대관화가용개솔진행배서,우선종RS(Receiving Set)절점류중선택복무제공자,최후유객호단집행PSA산법.방진실례표명해책략적유효성.
Considering the equity problem for streaming media service in P2P-VoD system. Based on the cache state, Data Receiving Peers as Suppliers (DRPS) for suppliers selection is proposed,and Preassign Scheduling Algorithm (PSA) is designed. First,peers are assorted by cache state,then peers are sorted by bandwidth and availability probability,preference is given to peers in Receiving Set (RS) to be suppliers,and at last PSA executs at client. Simulation shows the validity of the proposed strategy.
