工业环境无线传感器网络分集技术

刘锋; 徐金梧; 阳建宏; 黎敏

doi:10.3724/SP.J.1146.2009.01524

工业环境无线传感器网络分集技术

doi: 10.3724/SP.J.1146.2009.01524

基金项目:

国家自然科学基金(50674010)和国家863计划项目(2007AA04Z169)资助课题

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出版历程
- 收稿日期: 2009-11-27
- 修回日期: 2010-08-23
- 刊出日期: 2010-12-19

Diversity Technique and Channel Optimization for Industrial Wireless Sensor Networks

摘要

摘要: 在工业环境应用无线传感器网络，将面临设备及器材引起的大量散射电磁波带来的无线信道随机衰落。该文对工业环境无线信号进行了分析，针对传感器节点体积及成本受限的情况，在极化分集基础上提出一种天线姿态寻优方案，对极化分集与天线姿态寻优带来的分集增益进行了仿真和对比，并设计了适用于无线传感器网络的天线优化方案。通过工业环境实际测量，验证了无线传感器网络天线分集方案的有效性。
- 无线传感器网络 /
- 无线信道 /
- 工业环境 /
- 分集
Abstract: The industrial wireless sensor networks may suffer serious random fading of wireless channel in industrial environment which is induced by the metallic equipments and apparatus. By analyzing the radio signals in industrial environment, an antenna attitude optimized system is presented based on the polarization diversity technology considering the limitation of size and cost for wireless sensor networks. The performance comparison between selection-diversity system and antenna attitude optimized system is carried out, and an antenna optimization scheme is put forward suitable for wireless sensor networks, with high effectiveness verified by measurements in actual industrial environment.
- Wireless sensor networks /
- Wireless channel /
- Industrial environment /
- Diversity

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参考文献(1)

Long Cheng-zhi, Chen Hui, and Li Li-hong. Energy-efficiency cooperative communications with node selection for wireless sensor networks. Computational Intelligence and Industrial Application, Wuhan, 2008: 761-765.[2]Nguyen T D, Berder O, and Sentieys O. Cooperative MIMO schemes optimal selection for wireless sensor networks. Vehicular Technology Conference, Dublin, 2007: 85-89.[3]Mi-Kyung Oh, Ma Xiao-li, and Giannakis G B, et al.. Cooperative synchronization and channel estimation in wireless sensor networks. Thirty-Seventh Asilomar Conference on Signals, Systems and Computers, Pacific Grove, 2003, 1: 238-242.[4]Shuguang C, Goldsmith A J, and Bahai A. Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks[J].IEEE Journal on Selected Areas in Communications.2004, 22(6):1089-1098[5]Wang W, Peng D M, and Wang H G, et al.. Position based unequal error protection for image transmission with energy constraint over multirate XPD MIMO sensor networks. IEEE Global Telecommunications Conference, New Orleans, 2008: 1-5.[6]Nabar R U, Bolcskei H, and Erceg V, et al.. Performance of multiantenna signaling techniques in the presence of polarization diversity[J].IEEE Transactions on Signal Processing.2002, 50(10):2553-2562[7]Stber G L. Principles of Mobile Communication. 2nd Edition, Norwell Massechussets, Kluwer Acdemic Publishers, 2004: 41-44.Durgin Gregory D. Space-Time Wireless Channels. 1st Edition, Upper Saddle River, NJ, USA, Prentice Hall Press, 2004: 156.[8]Tounou C, Decroze C, and Carsenat D, et al.. Diversity antennas efficiencies enhancement. IEEE Antennas and Propagation Society International Symposium, Honolulu, HI, 2007: 1064-1067.

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