| 基于RTCP反馈的TCP友好的实时流媒体拥塞控制机制 |
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| 引用本文： | 耿福泉,方敏,赵林亮,王光兴.基于RTCP反馈的TCP友好的实时流媒体拥塞控制机制[J].东北大学学报(自然科学版),2006,27(11):1204-1207. |
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| 作者姓名： | 耿福泉 方敏 赵林亮 王光兴 |
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| 作者单位： | 东北大学信息科学与工程学院,辽宁沈阳,110004 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 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,使得TFRC流开始的发送速率不至于太低而使得接收端在开始有较大的延迟和抖动·仿真结果验证了此机制在实现对TCP流友好性的同时提高了实时流媒体的QoS
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| 关 键 词： | 流媒体 拥塞控制 TFRC RTP/RTCP QoS |
| 文章编号： | 1005-3026（2006）11-1204-04 |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 2005年10月20 |
A TCP-Friendly Real-Time Streaming Media Congestion Control Based on RTCP Feedback |
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| GENG Fu-quan,FANG Min,ZHAO Lin-liang,WANG Guang-xing.A TCP-Friendly Real-Time Streaming Media Congestion Control Based on RTCP Feedback[J].Journal of Northeastern University(Natural Science),2006,27(11):1204-1207. |
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| Authors: | GENG Fu-quan FANG Min ZHAO Lin-liang WANG Guang-xing |
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| Institution: | (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China |
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| Abstract: | An end-to-end congestion control mechanism, i.e., a-TFRC(ameliorated TFRC), is presented, which is TCP-friendly 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 phase 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. |
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| Keywords: | TFRC RTP/RTCP QoS |
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