| Logvegas:高速长距离网络中基于Vegas的拥塞控制机制 |
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| 引用本文： | 沈明玉,段布托,赵钦. Logvegas:高速长距离网络中基于Vegas的拥塞控制机制[J]. 合肥工业大学学报(自然科学版), 2009, 32(3) |
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| 作者姓名： | 沈明玉 段布托 赵钦 |
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| 作者单位： | 合肥工业大学,计算机与信息学院,安徽,合肥,230009;合肥工业大学,计算机与信息学院,安徽,合肥,230009;合肥工业大学,计算机与信息学院,安徽,合肥,230009 |
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| 摘 要： | TCP Vegas是一个著名的传输控制协议,能在早期探测网络拥塞并成功阻止周期性的丢失数据包,但是在高带宽时延积网络中,TCP Vegas在包丢失后恢复到大窗口的行动迟缓,其拥塞控制算法的性能比较差;文章提出了TCP Vegas的一种改进版本的Logvegas,它基于历史拥塞窗口,允许在包丢失事件发生后按对数级速度恢复拥塞窗口;通过在ns2下进行的大量模拟实验表明,Logvegas可以取得比Tcp Vegas更好的传输性能.
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| 关 键 词： | 拥塞控制 高带宽时延积网络 TCP性能 |
Logvegas: congestion control mechanism based on Vegas in high-speed long-distance networks |
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| SHEN Ming-yu,DUAN Bu-tuo,ZHAO Qin. Logvegas: congestion control mechanism based on Vegas in high-speed long-distance networks[J]. Journal of Hefei University of Technology(Natural Science), 2009, 32(3) |
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| Authors: | SHEN Ming-yu DUAN Bu-tuo ZHAO Qin |
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| Affiliation: | School of Computer and Information;Hefei University of Technology;Hefei 230009;China |
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| Abstract: | TCP Vegas is a well-known transport control protocol,which can detect network congestion in the early stage and successfully prevent periodic packet loss.However,TCP Vegas congestion control may function poorly in high bandwidth-delay product networks because of its sluggish response with large congestion windows after a packet loss.In this paper,an improved version of TCP Vegas called Logvegas is proposed,which is based on the history window size and allows a logarithmic congestion window to recover after ... |
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