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一种改善TCP性能的链路层重传方案
引用本文:党莹,赵尚弘,刘伟. 一种改善TCP性能的链路层重传方案[J]. 电子科技, 2007, 0(1): 24-26
作者姓名:党莹  赵尚弘  刘伟
作者单位:空军工程大学,电讯工程学院十三队,陕西,西安,710077;北京信威通信技术股份有限公司,北京,100094
摘    要:有线网络中TCP拥塞控制机制是建立在网络丢包的基础之上的,所以该机制不能适应无线网络中高误码率造成的无线链路丢包的情况。无线链路层重传技术是改善网络性能因无线信道误码率较高而下降的一项重要措施。文中研究了WCDMA无线网络中链路层重传技术对无线TCP数据传输的影响,比较两种重传方案,通过OPNET仿真技术对其进行仿真比较,得出其中一种更有效的改善TCP传输性能的方案。

关 键 词:无线网络  链路层重传  TCP  OPNET仿真
收稿时间:2006-08-07
修稿时间:2006-08-07

A Link Layer Retransmission Scheme for Improving TCP Performance
Dang Ying,Zhao Shanghong,Liu Wei. A Link Layer Retransmission Scheme for Improving TCP Performance[J]. Electronic Science and Technology, 2007, 0(1): 24-26
Authors:Dang Ying  Zhao Shanghong  Liu Wei
Abstract:The TCP congestion control mechanism in the wire network supposes the packet loss is caused by congestion, so it is not applicable to the wireless network. The retransmission technology of wireless link layer is an important measure to improve the degraded network performance in the wireless network. This paper studies the effect of link layer retransmission on wireless TCP data transmission and proposes two retransmission schemes. The simulation of the two schemes using OPNET shows the difference of the two schemes and determines the more effective scheme for improving the performance of TCP transmission.
Keywords:wireless network  link layer retransmission  TCP  OPNET simulation
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