新的多速率多播拥塞控制方案  

Novel multi-rate multicast congestion control algorithm

作　　者：张登银[1] 王倩倩[1] 李军[1] 王汝传[1] 

机构地区：[1]南京邮电大学计算机学院,江苏南京210003

出　　处：《通信学报》2007年第1期135-140,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(70271050);国家高技术研究发展计划("863"计划)基金资助项目(2002AA712037)~~

摘　　要：提出了一种新的基于数据包束探测(packet-bunch probe)和TCP吞吐量公式的多速率多播拥塞控制方案PTMCC(packet-bunch probe and TCP-formula based multicast congestion control)。这种接收端驱动的拥塞控制,采用数据包束来探测网络的可用带宽,利用TCP吞吐量公式得到TCP友好速率,并采用了新的速率调节算法。仿真实验表明,PTMCC在收敛性、灵敏性以及TCP友好性上具有较好的性能。A novel congestion control mechanism based on packet-bunch probe and TCP throughput formula （PTMCC） was proposed. This receiver-driven multi-rate multicast congestion control mechanism probes available bandwidth by packet-bunch and gets TCP-friendly rate by TCP throughput formula. A new rate adjustment algorithm was also designed. Simulation results show that the PTMCC make good performance on convergence, TCP-friendliness and response to congestion.

关 键 词：多播 拥塞控制 多速率 分层 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]