| Vegas算法对不对称空间链路性能的影响 |
| |
| 引用本文： | 曾杰华,胡圣波.Vegas算法对不对称空间链路性能的影响[J].贵州科学,2011,29(6):1-5. |
| |
| 作者姓名： | 曾杰华 胡圣波 |
| |
| 作者单位： | 1. 贵州师范大学数学与计算机科学学院,贵阳,550001
2. 贵州师范大学智能信息处理研究所,贵阳,550001 |
| |
| 基金项目： | 贵州省科技基金项目:黔科合J字[2009]2127号 |
| |
| 摘 要： | 不对称空间链路TCP性能对空间网络十分重要。基于NS2，建立空间网络TCP场景，在比较几种TCP拥塞控制算法的基础上，重点研究了Vegas算法对不对称空间链路性能的影响。仿真结果表明：Vegas算法的窗口门限值α、β的增大能增加吞吐量，相应的窗口值将变。Vegas算法的估计缓存区里的包数δ影响窗口的大小，δ为默认值时吞吐量较大。
|
| 关 键 词： | 网络拥塞控制 Vegas NS2 |
Influence on Asymmetric Space-link Performance of Vegas Algorithm |
| |
| ZENG Jie-hua,HU Sheng-bo.Influence on Asymmetric Space-link Performance of Vegas Algorithm[J].Guizhou Science,2011,29(6):1-5. |
| |
| Authors: | ZENG Jie-hua HU Sheng-bo |
| |
| Institution: | 1School of Mathematics and Computer Science,Guizhou Normal University,Guiyang,Guizhou 550001,China;2Institute of Intelligent Information Processing,Guizhou Normal University,Guiyang,Guizhou 55000,China) |
| |
| Abstract: | TCP performance of asymmetric space link is very important to spatial network. Based on NS2, the spatial network TCP scenario is built. After several TCP congestion control algorithms are compared, the Vegas algorithm for asymmetrical space-link performance is focused. Simulation results based on NS2 show that Vegas algorithm window threshold ct and β can increase the throughput and the corresponding window sizes will become larger. The number of packets δ in the buffer of Vegas algorithm estimates affects the size of the window, and throughput is biggest while δ is selected the default value. |
| |
| Keywords: | network congestion control Vegas NS2 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
