| TCP/IP协议在卫星链路上的应用研究 |
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| 引用本文： | 周兆清,陈立军. TCP/IP协议在卫星链路上的应用研究[J]. 无线电工程, 2006, 36(1): 47-50 |
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| 作者姓名： | 周兆清 陈立军 |
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| 作者单位： | 中国电子科技集团公司第54研究所,河北,石家庄,050081 |
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| 摘 要： | 因特网的发展对带宽的要求越来越高,现有的地面网络远远不能满足用户的需求,因而卫星网与IP网结合成了目前研究的热点。简要介绍了TCP/IP的协议结构和工作原理。针对卫星网的信道差错率高、传播延迟长和信道不对称性对TCP传播性能有恶化影响,按照从链路层到应用层的分类方法,分别提出了改善措施,包括:传输控制协议层的窗口控制、快速重传、快速重发、ACK控制等改进方案以及基于TCP欺骗技术和TCP分段技术的联接分段代理方案。
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| 关 键 词： | TCP/IP 卫星通信 协议欺骗 |
| 收稿时间： | 2005-08-08 |
| 修稿时间： | 2005-08-08 |
Application Research on TCP/IP over Satellite Link |
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| ZHOU Zhao-qing,CHEN Li-jun. Application Research on TCP/IP over Satellite Link[J]. Radio Engineering of China, 2006, 36(1): 47-50 |
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| Authors: | ZHOU Zhao-qing CHEN Li-jun |
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| Affiliation: | The 54th Research Institute of CETC, Shijiazhuang Hebei 050081, China |
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| Abstract: | The development of the Internet requires more and more bandwidth the existing terrestrial networks cannot satisfy.Therefore, satellite IP network becomes a hot topic at present.This paper analyzes the TCP mechanism and the reason TCP suffers from efficiency loss over a satellite link.Some of the inherent features of satellite network such as large propagation delay, high bit error rate and network asymmetry impact improvement of TCP performance.Three methods for improving TCP over satellite link are analyzed in the paper: 1) link layer solutions ; 2) end to end solutions; 3) connection splitting proxies based on protocol spoofing. |
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| Keywords: | TCP/IP |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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