计算机应用 ›› 2015, Vol. 35 ›› Issue (9): 2430-2435.DOI: 10.11772/j.issn.1001-9081.2015.09.2430

• 网络与通讯 • 上一篇    下一篇

基于模糊压缩感知的无线传感网络拥塞控制算法

甘峰浩1, 牛玉刚1, 贾廷纲2   

  1. 1. 化工过程先进控制和优化技术教育部重点实验室(华东理工大学), 上海 200237;
    2. 上海电气集团股份有限公司 自动化事业部, 上海 200070
  • 收稿日期:2015-03-26 修回日期:2015-07-16 出版日期:2015-09-10 发布日期:2015-09-17
  • 通讯作者: 牛玉刚(1964-),男,辽宁营口人,教授,博士生导师,主要研究方向:随机系统、拥塞控制、无线传感网络、智能电网,acniuyg@ecust.edu.cn
  • 作者简介:甘峰浩(1990-),男,河南濮阳人,硕士,主要研究方向:无线传感网络的拥塞控制技术;贾廷纲(1973-),男,山东淄博人,教授级高级工程师,博士,主要研究方向:工业自动化。
  • 基金资助:
    国家自然科学基金资助项目(61273073);上海市优秀技术带头人资助项目(14XD1420900)。

Congestion control algorithm in wireless sensor network based on fuzzy compress sensing

GAN Fenghao1, NIU Yugang1, JIA Tinggang2   

  1. 1. Key Lab Advanced Control and Optimization for Chemical Processed of Ministry of Education (East China University of Science and Technology), Shanghai 200237, China;
    2. Automation Division, Shanghai Electric Group Company Limited, Shanghai 200070, China
  • Received:2015-03-26 Revised:2015-07-16 Online:2015-09-10 Published:2015-09-17

摘要: 针对无线传感网络(WSN)的拥塞问题,提出了一种将模糊控制和压缩感知(CS)技术相结合来缓解无线传感网络拥塞的算法。首先,将压缩感知技术引进到无线传感网络的拥塞控制中,理论分析了压缩感知对缓解传感网络拥塞的效果,通过对采集数据进行压缩感知处理来减少网络冗余信息,从而缓解网络拥塞。其次,针对网络拥塞时压缩感知技术不能动态适应无线传感网络复杂环境的问题,设计了一种模糊-压缩感知的拥塞控制算法,该算法结合网络拥塞状况对压缩感知的观测矩阵维数进行动态调节,从而使压缩感知技术更好地适应传感网络拥塞状况的变化。该机制在不同的拥塞状况下能够提高网络吞吐量10%~50%,降低网络的丢包率10%~50%,减少网络时延将近5 s。通过NS2仿真表明,该机制对无线传感网络的拥塞缓解有较明显的效果。

关键词: 无线传感网络, 拥塞控制, 压缩感知, 模糊控制

Abstract: To solve the congestion problem in Wireless Sensor Network (WSN), a congestion control mechanism which combines fuzzy control and Compressed Sensing (CS) techniques together was proposed to alleviate WSN congestion. Firstly, compressed sensing technology was introduced into WSN to congestion control in wireless sensor networks, and the congestion control effect of CS was analyzed. It would reduce redundant information and relive network congestion. Secondly, for the problems that compressed sensing cannot adapt to the complex environment of WSN, a congestion control algorithm of fuzzy compressed sensing was designed in this paper, which combined the congestion degree of network to dynamically adjust the dimension of observation matrix, thus make the compress sensing better adapt the complex environment of WSN. The mechanism can improve the network throughput by 10% to 50%, reduce the packet loss rate by 10% to 50%, and reduce the network delay by nearly 5 s. NS2 simulation shows that the mechanism achieves better improvement to WSN congestion.

Key words: Wireless Sensor Network (WSN), congestion control, Compressed Sensing (CS), fuzzy control

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