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。
关键词:
LEO卫星网络,
TCP,
拥塞控制
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 of 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-AB algorithm is superior to Vegas and Vegas-A algorithms in throughput and round trip time.
Key words:
LEO Satellite Network,
TCP,
Congestion Control
中图分类号:
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.
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.