| 网络可用带宽测量算法IGI的实现和改进 |
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| 引用本文： | 刘星成,莫其明.网络可用带宽测量算法IGI的实现和改进[J].小型微型计算机系统,2006,27(3):432-436. |
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| 作者姓名： | 刘星成 莫其明 |
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| 作者单位： | 1. 中山大学,电子与通信工程系,广东,广州,510275;东南大学,移动通信国家重点实验室,江苏,南京,210096
2. 中山大学,电子与通信工程系,广东,广州,510275 |
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| 基金项目： | 中国科学院资助项目;广东省博士启动基金;国家重点实验室基金 |
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| 摘 要： | 详细讨论了IGI可用带宽测量算法及其实现，并针对该算法的缺点提出了改进的可用带宽测量算法．通过大量的网络测量试验并与MRTG测量结果比较后发现，改进的可用带宽测量算法能快速测量网络的可用带宽，测量准确性更高，稳定性有很大改善，能快速反映可用带宽的变化，增强了跟踪带宽变化的能力．
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| 关 键 词： | 可用带宽 瓶颈带宽 包对 带宽测量 主动探测 |
| 文章编号： | 1000-1220（2006）03-0432-05 |
| 收稿时间： | 11 5 2004 12:00AM |
| 修稿时间： | 2004-11-05 |
Implementation and Improvement on the IGI Measurement Algorithm of Network Available Bandwidth |
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| LIU Xing-cheng,MO Qi-ming.Implementation and Improvement on the IGI Measurement Algorithm of Network Available Bandwidth[J].Mini-micro Systems,2006,27(3):432-436. |
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| Authors: | LIU Xing-cheng MO Qi-ming |
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| Abstract: | This paper discussed in detail the IGI measurement algorithm and its implementation with C/C++.After analyzing the deficiency of this algorithm,a modified available bandwidth measurement algorithm was proposed.Through a huge number of network experiments it was found that the proposed algorithm of measurement could get measurement results more promptly,give more accurate estimation to network bandwidth, and yield more steady results.Furthermore,the proposed algorithm tends to be capable of rapidly reflecting changes of bandwidth and so improves the capability of tracing bandwidth changes. |
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| Keywords: | zavailable bandwidth bottleneck bandwidth packet pair bandwidth measurement active probing |
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