| 一种改进的无线TCP拥塞控制算法及〖JZ〗其稳态流量模型 |
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| 引用本文： | 姚凌,纪红,乐光新. 一种改进的无线TCP拥塞控制算法及〖JZ〗其稳态流量模型[J]. 北京邮电大学学报, 2005, 28(2): 42-45 |
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| 作者姓名： | 姚凌 纪红 乐光新 |
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| 作者单位： | 北京邮电大学 数字通信与信息网络实验室， 北京 100876 |
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| 摘 要： | 提出了一种能够通过带宽估计来判断无线链路分组丢失原因，并采取相应拥塞控制机制的无线TCP协议——TCP_LD（TCP lose detection）。采用Padhye模型的建模方法，推导了TCP_LD的稳态流量模型。理论分析和仿真结果说明，TCP_LD能够有效地区分出发生分组丢失的原因，即拥塞丢失或者链路差错丢失，提高了系统的流量，并且具备较好的公平性。
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| 关 键 词： | TCP_LD 拥塞控制 流量 |
| 文章编号： | 1007-5321(2005)02-0042-04 |
| 修稿时间： | 2004-03-24 |
A Novel TCP over Wireless Fading Channel and Its Steady State Throughput Model |
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| YAO Ling,JI Hong,YUE Guang-xin. A Novel TCP over Wireless Fading Channel and Its Steady State Throughput Model[J]. Journal of Beijing University of Posts and Telecommunications, 2005, 28(2): 42-45 |
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| Authors: | YAO Ling JI Hong YUE Guang-xin |
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| Affiliation: | Laboratory of Digital Communication and Information Networks, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | We propose an improved wireless transport control protocol-TCP__LD(TCP lose detection). Using bandwidth estimation, this scheme can distinguish the reason of packets errors, hence adopt appropriate congestion control mechanism. Based on the TCP throughput model of Padhye, an analytical model of TCP__LD steady state throughput is educed. The results show that our scheme is simple and effective for dealing with random packet loss, and can achieve significant throughput improvements without adversely affecting other concurrent TCP connections. |
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| Keywords: | TCP_LD |
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