一种路由器辅助的多速率组播拥塞控制策略  

Router-assisting strategy of the multirate multicast congestion control

作　　者：董春玲[1] 朱晓丽[1] 郑明春[1] 

机构地区：[1]山东师范大学信息管理学院,山东济南250014

出　　处：《计算机应用》2004年第11期19-21,24,共4页journal of Computer Applications

基　　金：山东省优秀中青年科学家科研奖励基金资助项目 (3 0 40 6 8)

摘　　要：IP组播是一种有效的数据传输方式,由于其自身特性决定了在组播中实现可靠性和拥塞控制非常困难,因此设计合适的拥塞控制协议是一个迫切需要解决的问题,而这一点仅依赖于端系统控制拥塞的能力是有限的,文中尝试将一种主动队列管理(AQM)算法REM加入到多速率组播拥塞控制协议RLC当中,使网络本身参与对拥塞的监测和预防,并通过利用REM提供的拥塞指示(CI)对现有多速率组播解决办法在接收者加入层或者离开层的行为策略上进行改进。IP multicast is an efficient way of data transmission,but it is difficult to realize reliability and congestion control because of its properties. The study on congestion control for IP multicast has become an urgent problem to solve,and just relying on the performance of the end-to-end congestion control strategies is not sufficient for this. The Active Queue Management Algorithm——REM was applied to the multirate multicast congestion control protocol RLC.By using the congestion indication provided by REM,the purpose is to make the network itself detect and prevent congestion,and improve the performance of the synchronization strategy of the exsisting multirate multicast for receivers to join layers and leave layers.

关 键 词：多速率组播 拥塞控制 同步点 主动队列管理 REM 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]