| 在多跳Ad hoc网络中基于路由协议的TCP性能改进 |
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| 引用本文： | 谢宇治,张力军.在多跳Ad hoc网络中基于路由协议的TCP性能改进[J].南京邮电大学学报(自然科学版),2005,25(3):32-36. |
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| 作者姓名： | 谢宇治 张力军 |
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| 作者单位： | 南京邮电大学,信息工程系,江苏 南京,210003;南京邮电大学,信息工程系,江苏 南京,210003 |
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| 摘 要： | 在MAC层基于IEEE 802.11的多跳Ad hoc网络中,底层频繁的冲突严重影响了TCP的性能。文中提出并实现了一种依靠路由协议向上层屏蔽底层短暂而频繁的中断,从而提高TCP报文传输成功率的方案。仿真结果表明该方案使得TCP丢包率大幅下降,TCP吞吐量获得了从12%到200%不等的改善幅度。
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| 关 键 词： | Ad hoc 网络 传输控制协议 AODV |
| 文章编号： | 1000-1972(2005)03-0032-05 |
| 修稿时间： | 2004年6月7日 |
Performance Improvement of TCP Based on Routing Protocol in Multi-hop Ad hoc Networks |
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| XIE Yu-zhi,ZHANG Li-jun.Performance Improvement of TCP Based on Routing Protocol in Multi-hop Ad hoc Networks[J].Journal of Nanjing University of Posts and Telecommunications,2005,25(3):32-36. |
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| Authors: | XIE Yu-zhi ZHANG Li-jun |
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| Institution: | XIE Yu-zhi,ZHANG Li-junDepartment of Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | In multi-hop Ad hoc network based on IEEE 802.11,Frequent collision in MAC layer influences TCP performance.In order to improve the successful probability of TCP data transmission,this paper proposes a scheme relying on the routing protocol to keep TCP unaware of the short and frequent interruption of the low layers.With the new scheme,the simulation results show that TCP drop rate was reduced by a large margin,and that TCP throughput was increased about 12%-200%. |
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| Keywords: | Ad hoc networks Transmission control protocol Ad hoc on-demand distance vector routing |
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