应用层组播节点流媒体调度算法  

Node Streaming Media Scheduling Algorithm for Application Layer Multicast

作　　者：彭墨青[1] 谢建国[2] 

机构地区：[1]广东外语外贸大学教育技术中心,广州510006 [2]广东外语外贸大学信息科学技术学院,广州510006

出　　处：《计算机工程》2009年第15期235-237,共3页Computer Engineering

基　　金：湖南省自然科学基金资助项目(05JJ30112);广州市科技计划基金资助项目(2007J1-C0321)

摘　　要：针对终端转发机制存在的延迟问题和传输率波动问题,提出一种应用层组播节点流媒体调度算法,通过采用组播节点的缓冲延迟和视频编码预测信息,减弱流视频的突发性高带宽需求,从而实现实时流率平滑传输,以提供稳定的流视频服务。仿真实验结果表明,该算法是有效可行的。Aiming at the problems of time delay and transmission rate wave in terminal transmission mechanism, a node streaming media scheduling algorithm for application layer multicast is presented, which uses the buffering delay of multicast nodes and video code prediction information to cut down outburst high bandwidth requirements of streaming video. The real-time streaming rate smoothing transmission is implemented. The streaming video service is provided. Simulation experimental results show this algorithm is effective and feasible.

关 键 词：流媒体 应用层组播 缓冲 率平滑 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]