| 一种适用于流媒体传输的无线TCP友好速率控制机制 |
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| 引用本文： | 朱晓亮,杜旭,杨宗凯.一种适用于流媒体传输的无线TCP友好速率控制机制[J].小型微型计算机系统,2007,28(4):577-582. |
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| 作者姓名： | 朱晓亮 杜旭 杨宗凯 |
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| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金;湖北省自然科学基金 |
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| 摘 要： | 综合无线错误丢包以及拥塞丢包事件的统计特征,基于丢包区分,本文提出一种适用于流媒体传输的无线TCP友好速率控制(Wireless TCP-Friendly Rate Control,WTFRC)方程并建立实用的速率控制机制.该机制包括服务器或者代理发送端和用户接收端两部分,分别负责往返传输时间(Round-Trip Time,RTT)估计、发送速率估计调整和丢包区分、丢包率(Pack-et Loss Ratio,PLR)统计、接收速率估计.仿真结果验证了该机制能够获得较高的吞吐量和较平缓的发送速率,并具备较好的TCP友好特征.
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| 关 键 词： | 流媒体 无线网络 TCP友好速率控制 丢包区分 公平性 |
| 文章编号： | 1000-1220（2007）04-0577-06 |
| 修稿时间： | 2006-02-16 |
A Wireless TCP-friendly Rate Control Mechanism for Streaming Delivery |
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| ZHU Xiao-liang,DU Xu,YANG Zong-kai.A Wireless TCP-friendly Rate Control Mechanism for Streaming Delivery[J].Mini-micro Systems,2007,28(4):577-582. |
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| Authors: | ZHU Xiao-liang DU Xu YANG Zong-kai |
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| Affiliation: | Department of Electronics and Information Engineering, Huazhong University of Science and Technology,Wuhan 430074, China |
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| Abstract: | Considering statistic features of packet loss due to wireless error and congestion events,this paper proposes a wireless TCP-friendly rate control (WTFRC) equation for streaming media delivery based on loss differentiation. Besides, a practical rate control mechanism is constructed. Our architecture includes sender functionality on content server or proxy side and receiver functionality on client side. The former is in charge of loss events differentiation, packet loss ratio (PLR) and receiving rate estimation. The latter is in charge of round-trip time (RTT) estimation, sending rate evaluation and adjustment. Simulation results demonstrate that higher throughput, better fairness and smoother sending rate can be achieved by our proposed mechanism. |
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| Keywords: | streaming wireless network TCP friendly rate control loss differentiation fairness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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