一种多播拥塞控制中速率的调节机制  

An approach for regulating the transmission rate in multicast

作　　者：熊乃学[1] 谭连生[1] 杨燕[1] 

机构地区：[1]华中师范大学计算机科学系,湖北武汉430079

出　　处：《通信学报》2004年第11期142-150,共9页Journal on Communications

基　　金：国家自然科学基金资助项目(60174043)湖北省自然科学重点基金资助项目(2002AB025)

摘　　要：本文针对计算机高速互联网中多播流的速率调节问题,在单点对多点的多播流量模型基础上,提出了一种由发送方驱动的单速率多播拥塞控制器的设计方法。并且运用现代控制理论和方法,讨论如何利用基于多播的单速率拥塞控制方法来对多播发送节点的发送速率进行调节,从而使得发送节点的发送速率趋于稳定。对所提出的拥塞控制方案,本文进行了分类仿真,仿真结果显示,控制方案使网络性能表现良好。With regard to the flow regulation of multicast flow in high-speed computer communication network, the present paper proposes a class of sender-driven single rate congestion controllers based on single-to-many multicast model. Based on modern control theory, it is shown the controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the rate of source node is stable, and the congestion controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destination node. We have fulfilled a variety of simulations under various traffic conditions and network environment. They show good performance of the proposed congestion control schemes.

关 键 词：多播 拥塞控制 稳定性 缓冲占有量 

分 类 号：TN929.5[电子电信—通信与信息系统] TN919.8[电子电信—信息与通信工程]