基于RTCP反馈的TCP友好的实时流媒体拥塞控制机制  

A TCP-Friendly Real-Time Streaming Media Congestion Control Based on RTCP Feedback

作　　者：耿福泉[1] 方敏[1] 赵林亮[1] 王光兴[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2006年第11期1204-1207,共4页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2003AA712032).

摘　　要：提出了一种端到端的、基于RTCP反馈的、改进了的TFRC拥塞控制机制,即a-TFRC(amelioratedTFRC);主要针对实时流媒体要求低延迟和低抖动的特点,修改了TFRC的慢启动阶段。An end-to-end congestion control mechanism, i.e., a-TFRC（ameliorated TFRC）, is presented, which is TCPfriendly and based on RTCP feedback. In view of that the real-time streaming media need short delay and short-term jitter, the slow start-up phaae of a TFRC is improved to enable the initial ,sending rate of TFRC flow not to be so low that the delay and jitter begin to lengthen at receiving end. Simulation result shows that the proposed mechanism improves the streaming media throughput and QoS so as to ensure the amicability of TCP flow.

关 键 词：流媒体 拥塞控制 TFRC RTP/RTCP QoS 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]