摘要: |
提出了一种新的适用于分层多播拥塞控制方案中的往返时间(RTT)估算方法。该估算方法中
,分层
多播会话中未被抑制的接收者进行RTT测量,被抑制接收者进行单向延时测量来估算RTT值,
同时该方法采用优先级因子将经常被抑制的接收者和具有较大RTT的接收者考虑在内。
仿真结果表明该算法是可行的。 |
关键词: 分层多播 拥塞控制 往返时间 估计算法 |
DOI: |
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基金项目:国家高技术研究发展计划(863计划)项目(2006AA01Z232);贵州省
科技厅科技支撑(工业攻关)项目((2008)3034);贵阳市人才创新创业资金资助项目;贵阳市
科技局信息化项目 |
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A New RTT Estimation Algorithm for Layered Multicast |
ZHANG Mu,WANG Pan |
(Department of Computer Science, Guiyang University, Guiyang 550005, China;Jiangsu Province Engineering Research Center of Telecommunication & Network Technology,Nanjing University of Posts and Telecommunications, Nanjing 210003, China) |
Abstract: |
A new RTT(Round Trip Time) estimation algorithm for layered multicast congestion
contro
l is presented. Nonsuppressed receivers in layered multicast session use round
trip estimation to get an accurate RTT,suppressed receivers use oneway measu
r
ement to get an estimation of RTT, and the algorithm takes the frequently suppre
ssed receivers and receivers with large RTT into consideration using a priority
factor. Simulation results show that this algorithm is feasible. |
Key words: layered multicast congestion control round trip time(RTT) estimation algorithm |