一种基于速率的组播拥塞控制算法及其性能分析  

A Rate-Based Multicast Congestion Control Algorithm and Its Performance Analysis

作　　者：苏晓丽[1] 郑明春[2] 李锦涛[1] 孟强[2] 

机构地区：[1]中国科学院计算技术研究所数字化室,北京100080 [2]山东师范大学计算机科学系,山东济南250014

出　　处：《电子学报》2004年第2期330-334,共5页Acta Electronica Sinica

基　　金：山东省优秀中青年科学家科研奖励基金

摘　　要：大部分组播拥塞控制机制都是将包丢失作为网络拥塞的信号 ,存在丢包、响应速度慢以及由此引起的协议间不公平等缺陷 .本文提出了一种新的基于速率拥塞控制算法通过对拥塞的早期检测 ,进行及时反馈 ,发送端通过调节数据包的发送间隔进行拥塞避免和控制 ,使网络能够对拥塞做出快速反应 ,更有效地利用网络资源 .实验结果表明 ,在相同的配置下 ,采用该拥塞控制算法的网络在吞吐量。A novel rate based multicast congestion control scheme-RBMCC is presented,which uses the positive explicit congestion indication and proxy based feedback control scheme to inform the sender about the status of network,so that the sender can detect incipient congestion early and adjust the send rate to alleviate congestion by changing packet intervals.The mechanism was implemented in the Network Simulator and its performance was compared with other algorithms by simulation.The simulation results show that RBMCC improves the dynamics and responsiveness,uses the available resource of network efficiently,and also has good TCP friendliness.

关 键 词：组播 拥塞控制 TCP友好 RBMCC 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]