| 无线传感器网络中基于最小速率的拥塞控制算法 |
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| 引用本文： | 杨歆豪,陆锦军,王执铨.无线传感器网络中基于最小速率的拥塞控制算法[J].信息与控制,2010,39(5):513-518. |
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| 作者姓名： | 杨歆豪 陆锦军 王执铨 |
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| 作者单位： | 1. 南京理工大学自动化学院,江苏,南京,210094
2. 南通职业大学现代教育技术中心,江苏,南通,226007 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省自然科学基金资助项目，江苏省六大人才高峰课题资助项目 |
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| 摘 要： | 针对无线传感器网络的拥塞问题，设计了一种基于最小速率的拥塞控制算法。利用分布式动态系统的理论对拥塞问题进行了建模，并证明了该算法能够保证所有节点的发送速率收敛到可用的最小带宽。利用李亚普诺函数证明了算法在变拓扑网络结构下的有效性。NS仿真结果表明，这种最小速率算法能够很好地抑制无线传感器网络中的拥塞现象，保证了较高的吞吐量和较低的网络延时，提高了整个网络的服务质量。
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| 关 键 词： | 无线传感器网络 网络拥塞控制 分布式动态系统 可用带宽 |
| 收稿时间： | 2009-09-21 |
| 修稿时间： | 2010-03-09 |
Congestion Control Algorithm Based on Min-Rate over Wireless Sensor Network |
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| YANG Xinhao,LU Jinjun,WANG Zhiquan.Congestion Control Algorithm Based on Min-Rate over Wireless Sensor Network[J].Information and Control,2010,39(5):513-518. |
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| Authors: | YANG Xinhao LU Jinjun WANG Zhiquan |
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| Affiliation: | YANG Xinhao~1,LU Jinjun~2,WANG Zhiquan~1 (1.College of Automation,Nanjing University of Science and Technology,Nanjing 210094,China,2.Center of Modern Education Technology,Nantong Vocational College,Nantong 226007,China) |
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| Abstract: | The congestion control algorithm based on min-rate is designed for network congestion in wireless sensor network. The congestion problem is modeled by the theory of distributed dynamic system, and it can be proved that the send rate for all nodes converges to the minimal available bandwidth by the proposed min-rate (MR) algorithm. Via Lyapunov function, the validity of the proposed algorithm is shown under the variable network topology. NS simulation results indicate that the MR algorithm restrains the congestion in wireless sensor network, maintains high throughput and low delay time, also improves the quality of service for the whole network. |
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| Keywords: | wireless sensor network network congestion control distributed dynamic system available bandwidth |
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