多天线阵列的矿井超宽带无线通信系统

doi:10.3969/j.issn.0255-8297.2014.04.004

应用科学学报 ›› 2014, Vol. 32 ›› Issue (4): 357-364.doi: 10.3969/j.issn.0255-8297.2014.04.004

多天线阵列的矿井超宽带无线通信系统

张国鹏，刘鹏，丁恩杰

中国矿业大学物联网（感知矿山）研究中心，江苏徐州221008

收稿日期:2013-11-14 修回日期:2014-02-18 出版日期:2014-07-31 发布日期:2014-02-18
作者简介:刘鹏，博士，副教授，研究方向：通信与信息系统，E-mail: liupeng@cumt.edu.cn
基金资助:
江苏省自然科学基金(No.BK2012141)；国家留学基金委公派博士后研究项目基金(No.2900759643)；国家“863”高技术研究发
展计划基金(No.2013AA06A411)；中央高校基本科研业务费基金(No.2011QNB26)资助

A MIMO-UWB Communication System for Coal Mines

ZHANG Guo-peng, LIU Peng, DING En-jie

Internet of Things Research Center, China University of Mining and Technology, Xuzhou 221008, Jiangsu Province, China

Received:2013-11-14 Revised:2014-02-18 Online:2014-07-31 Published:2014-02-18

摘要/Abstract

摘要： 将多天线阵列(multi-input multi-output, MIMO) 技术用于改善井下超宽带(ultra wideband, UWB)无线通信系统的误码率性能. 首先，研究单天线(single input single output, SISO)UWB 系统在矿井巷道的多径传播特性，以及相应的抗多径发射/接收策略和误码率性能. 在此基础上，从理论上分析MIMO 技术进一步提高
UWB 系统抗井下多径衰落的可行性；然后，在不增加系统发射能量和不改变SISO-UWB 接收机结构的前提下，通过增加发射天线数并结合无线信道空时分集理论，提出用于煤矿井下无线通信的MIMO-UWB 系统及其空时编/解码方案. 实验结果表明：与传统的SISO-UWB收发策略相比，所研究的MIMO-UWB空时编/解码方案在各类井下多径环境中均能获得35 dB 的误码率性能增益.

关键词: 煤矿井巷, 超宽带, 空时编/解码, 误码率

Abstract: This paper applies the multi-input multi-output (MIMO) antenna technology to improve the bit error rate (BER) performance of ultra wideband (UWB) systems for underground coal mines. The multipath propagation environment in coal mines is studied. UWB transceivers using single-input single-output (SISO)antennas and their BER performance are analyzed. Feasibility of using MIMO for anti-multipath fading in coal mines is studied theoretically. With the transmission energy and the receiver structure unchanged, a MIMOUWB based space-time coding/decoding scheme is developed by just increasing the number of transmission antennas. Simulation results show that the MIMO-UWB space-time coding/decoding scheme can achieve 35 dB BER performance gain in various coal mine environments as compared with traditional SISO-UWB systems.

Key words: underground coal mines, ultra wideband (UWB), space-time coding/decoding, bit error rate (BER)

中图分类号:

TN911.73

张国鹏，刘鹏，丁恩杰. 多天线阵列的矿井超宽带无线通信系统[J]. 应用科学学报, 2014, 32(4): 357-364.

ZHANG Guo-peng, LIU Peng, DING En-jie. A MIMO-UWB Communication System for Coal Mines[J]. Journal of Applied Sciences, 2014, 32(4): 357-364.

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多天线阵列的矿井超宽带无线通信系统

A MIMO-UWB Communication System for Coal Mines

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