| 基于NS仿真的无线自组网TCP性能研究 |
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| 引用本文： | 季克亮,陈亮.基于NS仿真的无线自组网TCP性能研究[J].南通工学院学报(自然科学版),2011(3):5-10. |
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| 作者姓名： | 季克亮 陈亮 |
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| 作者单位： | [1]南通纺织职业技术学院现代教育技术中心．江苏南通226007 [2]南通纺织职业技术学院信息系,江苏南通226007 |
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| 基金项目： | 江苏省高校“青蓝工程”项目 |
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| 摘 要： | 由于Ad Hoc网络具有多跳、无线连接的特点,其TCP性能成为Ad Hoc网络研究的重点.考虑Ad Hoc网络的多跳拓扑及无线分组丢失,根据TCP主流版本的拥塞控制规则,基于NS实验分析了TCP窗口及吞吐量性能.研究表明：基于有线网络设计与优化的TCP版本,并不都适合于Ad Hoc网络.Tahoe不但将TCP窗口维持在一个较高的数值上,而且在主流TCP版本中吞吐量性能也是较好的.另外,实验与分析也显示,除了无线分组丢失,超时成为影响Ad Hoc网络TCP性能的重要因素.
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| 关 键 词： | NS仿真 无线自组网 TCP性能 拥塞控制 |
Research on TCP Performance Based on NS Simulation in Ad Hoc Network |
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| Authors: | JI Ke-liang CHEN Liang |
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| Institution: | 1. Modem Education Technology Center, Nantong Textile Vocational Technology College, Nantong 226007, China; 2. Information Department, Nantong Textile Vocational Technology College, Nantong 226007,China) |
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| Abstract: | Ad Hoc network has the characteristics of multi-hop and wireless channel, so TCP performance has become the emphasis of Ad Hoc network research. Taking multi-hop and wireless packet loss in Ad Hoc network into account, and on the basis of general TCP version congestion control principle and NS experiments, TCP window size is analyzed. The study reveals that not all TCP versions are suitable for Ad Hoc network. TCP-Tahoe can maintain higher level of TCP window and the network throughout of TCP version is better. Moreover, experiment and analysis indicate that time-out is also an important factor affecting TCP performance besides wireless loss in Ad Hoc network. |
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| Keywords: | NS simulation Ad Hoc network TCP performance congestion control |
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