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基于时延的分层多播拥塞控制协议设计 被引量:3

Congestion control protocol design based on delay parameters for layered multicast communication
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摘要 提出了一种适用于多媒体传输的接收端驱动的分层多播拥塞控制机制,简称BDP(based on delay parameters)协议。该协议依据时延参数的动态变化来估测路径可用带宽,保证了网络资源的有效利用,实现了自适应的加层判断;预测网络的拥塞状况,实现了对拥塞的快速响应。ns2仿真结果表明,BDP协议取得良好的稳定性、扩展性、快速收敛性,相比于现有的MRAAR-MT协议,BDP协议表现了更好的TCP公平性。 A congestion control mechanism, BDP (based on delay parameters) was presented to be used in receiver-driven layered multicast for multimedia transmission. Based on the dynamic varying of delay parameters, BDP can estimate the path's available bandwidth for adaptive decision of layer join in order to provide guarantee of efficient network resources utilization, and can forecast the network congestion state in quick response to it. The ns2 simulation results show that BDP can achieve scalability, stability, fast convergence and be superior to MRAAR-MT protocol in TCP fairness.
出处 《通信学报》 EI CSCD 北大核心 2007年第5期55-61,共7页 Journal on Communications
关键词 多播 拥塞控制 时延 可用带宽估测 multicast congestion control delay available bandwidth estimation
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参考文献13

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