| 面向接收方的多跳无线TCP拥塞的控制机制 |
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| 引用本文： | 张辉,易发胜. 面向接收方的多跳无线TCP拥塞的控制机制[J]. 兰州理工大学学报, 2010, 36(1) |
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| 作者姓名： | 张辉 易发胜 |
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| 作者单位： | 1. 黄河水利职业技术学院,信息工程系,河南,开封,475003
2. 电子科技大学,计算机科学和工程学院,四川,成都,610054 |
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| 基金项目： | 国家863高新技术研究基金(2007AA01Z443);;电子科技大学青年科学基金(JX05031)的资助 |
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| 摘 要： | 在多跳无线网络中,因信道错误丢包和主机移动导致的带宽变化使传统TCP对无线信道的利用率低下.在分析和比较了当前相关研究情况后,提出一种基于接收方预测的拥塞控制机制来提高多跳无线网络的信道利用率.该方法在接收方计算当前带宽和RTT,并推导可用带宽反馈到发送方,发送方据此来控制发送速度.仿真试验结果验证了该算法的有效性,表明新算法可以有效提高TCP在多跳无线网络中的性能.
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| 关 键 词： | 多跳无线网络 TCP 拥塞控制 |
Control mechanism of receiver-oriented congestion for TCP over multi-hop wireless networks |
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| ZHANG Hui,YI Fa-sheng. Control mechanism of receiver-oriented congestion for TCP over multi-hop wireless networks[J]. Journal of Lanzhou University of Technology, 2010, 36(1) |
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| Authors: | ZHANG Hui YI Fa-sheng |
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| Affiliation: | 1.Information Engineering Department;Yellow River Conservancy Technical Institute;Kaifeng 475003;China;2.School of Computer Science and Engineering;University of Electronic Science and Technology of China;Chengdu 610054;China |
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| Abstract: | In multi-hop wireless networks,traditional TCP has poor channel utilizations due to its packets losses caused by error and bandwidth change caused by hosts' shift.After analyzing and comparing the related researches available,a new method was proposed based on the forecasting congestion control mechanism of the receiver to improve the channel utilizations.By using this method,the current bandwidth and RTT were evaluated by the receiver,and then the available bandwidth was derived and fed back to the sender.... |
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| Keywords: | multi-hop wireless networks TCP congestion control |
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