一种新的P2P流媒体数据分配算法评价准则  

New Evaluation Criterion of Data Allocation Algorithm in P2P Media Streaming System

作　　者：许洁斌[1] 何德照[1] 卢锦浩[1] 

机构地区：[1]华南理工大学计算机应用工程研究所,广东广州510640

出　　处：《小型微型计算机系统》2008年第12期2348-2352,共5页Journal of Chinese Computer Systems

基　　金：广东省科技计划项目(2005B10101061)资助

摘　　要：在多对单传输模式下,数据分配算法是P2P流媒体系统关键技术之一.本文介绍了国内外的分配算法,从缓冲延迟、数据块连续性、出错纠正功能、节点限制等多个角度提出了新的数据分配算法的评价指标,并提出综合评价准则的计算方法.通过仿真实验,表明了各个算法在不同的环境下各有优劣,并为新算法的研究提供了有效的途径.Data Allocation is one of the key problems in P2P streaming system with the pattern of multiple supplying peers and single requesting peer. In addition to discussing several data allocation algorithms, this paper presents a new evaluation criterion for data allocation algorithms from buffering delay, arriving discontinuity, error resistibility, peers restriction and other aspects. The result of simulation shows that each algorithm has its own advantages in different network environment. The evaluation criterion provides an effective method to research of new data allocation algorithm.

关 键 词：P2P 流媒体 数据分配 评价准则 缓冲延迟 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]