一种基于P2P的流媒体数据调度算法

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (11): 2778-2780 .

一种基于P2P的流媒体数据调度算法

何珂,方敏

西安电子科技大学计算机学院, 陕西西安 710071

出版日期:2009-11-26 发布日期:2010-01-03

Data scheduling algorithm for media streaming based on P2P

HE Ke,FANG Min

School of Computer Science and Technology, Xidian Univ., Xi’an 710071, China

Online:2009-11-26 Published:2010-01-03

摘要/Abstract

摘要：

针对现有的采用拉式策略的算法在进行调度时数据块不能及时到达的情况，提出了一种自适应的数据调度算法。该算法可以根据节点间数据的传输速率以及P2P网络节点的动态性自动调整对数据服务节点的选择，并可以最小化在播放截止时间之前不能到达的数据块的数量。实验结果表明，新的算法可以一定程度缩短每个调度周期的数据到达延迟。

Abstract:

In order to solve the problem that the data block can not arrive in time in the existing algorithm using pull method,an adaptive data scheduling algorithm is proposed for P2P media streaming. This algorithm can not only choose the server peer automatically according to the transmitting rate and the dynamic feature of P2P networks,but also minimize the quantity of the data block that can not arrive before the playing deadline. Experimental results show that the new algorithm can shorten the data arrival latency of every scheduling period to a certain degree.

何珂,方敏. 一种基于P2P的流媒体数据调度算法[J]. Journal of Systems Engineering and Electronics, 2009, 31(11): 2778-2780 .

HE Ke,FANG Min. Data scheduling algorithm for media streaming based on P2P[J]. Journal of Systems Engineering and Electronics, 2009, 31(11): 2778-2780 .