| TCPW协议的跨层优化设计 |
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| 引用本文： | 马金忠,叶进,张向利.TCPW协议的跨层优化设计[J].计算机工程,2010,36(13):102-104. |
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| 作者姓名： | 马金忠 叶进 张向利 |
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| 作者单位： | 桂林电子科技大学信息与通信学院,桂林,541004 |
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| 基金项目： | 广两信息与通讯技术重点实验室基金资助项目，广西青年科学基金资助项目，广西自然科学基金资助项目 |
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| 摘 要： | 传统TCP协议直接应用于混合网络会导致网络性能下降，基于带宽估算的TCPW协议是一种端到端的解决方案。针对TCPW协议带宽估算不够准确的问题，利用介质访问控制层的请求发送次数作为拥塞度量，提出TCPW协议的跨层优化设计。仿真结果表明，该优化设计的总吞吐量和公平性相比TCPW协议分别提高了23.8%和2.5%。
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| 关 键 词： | 混合网络 介质访问控制 跨层设计 TCPW协议 请求发送 |
Cross-layer Optimized Design for TCPW Protocol |
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| MA Jin-zhong,YE Jin,ZHANG Xiang-li.Cross-layer Optimized Design for TCPW Protocol[J].Computer Engineering,2010,36(13):102-104. |
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| Authors: | MA Jin-zhong YE Jin ZHANG Xiang-li |
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| Affiliation: | (Information & Communication College, Gulin University of Electronic Technology, Guilin 541004) |
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| Abstract: | The performance of traditional TCP protocol is much discounted over hybrid network. TCP Westwood(TCPW) protocol is an end-to-end solution based on bandwidth estimation. Aiming at the problem of inaccurate bandwidth estimation for TCPW protocol, this paper proposes a cross-layer optimized design, uses times of Request To Send(RTS) of Media Access Control(MAC) layer as a congestion metric. Simulation results show that this optimized design can improve performance of the total throughput and fairness respectively by 23.8% and 2.5% than TCPW protocol. |
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| Keywords: | hybrid network Media Access Control(MAC) cross-layer design TCP Westwood(TCPW) protocol Request To Send(RTS) |
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