| LEO卫星网络TCP拥塞控制算法改进研究 |
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| 引用本文： | 拱长青,赵志刚,王光兴.LEO卫星网络TCP拥塞控制算法改进研究[J].计算机工程,2006,32(18):90-91,1. |
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| 作者姓名： | 拱长青 赵志刚 王光兴 |
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| 作者单位： | 1. 东北大学信息科学与工程学院,沈阳,110004;沈阳航空工业学院计算机学院,沈阳,110034
2. 东北大学信息科学与工程学院,沈阳,110004 |
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| 基金项目： | 国家高技术研究发展计划(863计划);辽宁省自然科学基金 |
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| 摘 要： | 基于Vegas拥塞控制算法提出了一个适合于LEO卫星网络环境的TCP拥塞控制算法(Vegas-AB)，该算法是Vegas算法和Vegas-A算法的调和，可以动态地改变Alpha、Beta，Vegas-AB算法与Vegas-A算法的主要分支大体保持一致。在拥塞避免阶段，Vegas-AB算法更激进、更富有侵略性。仿真结果表明，在TCP吞吐量上，Vegas-AB算法优于Vegas算法和Vegas-A算法。
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| 关 键 词： | LEO卫星网络 TCP 拥塞控制 |
| 文章编号： | 1000-3428（2006）18-0090-02 |
| 修稿时间： | |
Research of TCP Congestion Control Algorithm over LEO Satellite Networks |
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| GONG Changqing,ZHAO Zhigang,WANG Guangxing.Research of TCP Congestion Control Algorithm over LEO Satellite Networks[J].Computer Engineering,2006,32(18):90-91,1. |
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| Authors: | GONG Changqing ZHAO Zhigang WANG Guangxing |
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| Affiliation: | (1. School of Information Science & Engineering, Northeastern University, Shenyang 110004; 2. College of Computer, Shenyang Institute of Aeronautical Engineering, Shenyang 110034) |
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| Abstract: | Based on TCP Vegas congestion control algorithm, this paper presents Vegas-AB algorithmr. This algorithm can be fit for Iridium-similar LEO satellite networks. The improvement idea of Vegas-AB algorithm comes from Vegas and Vegas-A algorithms; it is the harmonization of two algorithms. The name nf Vegas-AB means that this algorithm can change its parameters Alpha and Beta, and the main outline of Vegas-AB algorithm is still in accordance with Vegas-A algorithm. During congestion avoidance, the target of Vegas-AB algorithm, Vegas-AB algorithm is more radical and aggressive. Simulation results show that Vegas-All algorithm is superior to Vegas and Vegas-A algorithms in throughput and round trip time. |
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| Keywords: | TCP |
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