P2P媒体分发网络中的数据下载调度策略  

Data Transmission Scheduling Schema over P2P Media Distribution Network

作　　者：郭春茂[1] 朱明[1] 郑烇[1] 

机构地区：[1]中国科学技术大学自动化系,合肥230026

出　　处：《计算机工程》2008年第10期235-237,共3页Computer Engineering

基　　金：国家发改委项目中国下一代互联网(CNGI)示范工程"视频多媒体点播系统"(CNGI-04-15-2A)

摘　　要：在P2P媒体分发网络中,当一个节点同时从若干个其他节点获取数据时,为了按时完成更多的下载任务,需要对数据下载任务进行合理调度,为此该文提出了一种基于多任务关联的数据下载调度策略,通过统筹调度一段时间内的下载任务,可有效提高系统的并发服务能力。实验结果表明该策略能提高约10%的并发处理能力。When a node of Peer-to-Peer（P2P） media distribution network downloads data from a number of other nodes at the same time, it needs to schedule the downloading tasks rationally in order to complete as many tasks as possible on time. As a solution for this problem, a scheduling schema based on multi-task association is proposed. By taking all requests in a period into account and scheduling them as a whole, the schema can effectively improve service performance of this system. The simulation results show that it can improve the concurrent processing capacity by about 10 percent.

关 键 词：媒体分发 对等网络 数据下载调度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]