| 矿井超宽带无线中继传输的误码率性能 |
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| 引用本文： | 张国鹏,刘鹏,丁恩杰.矿井超宽带无线中继传输的误码率性能[J].应用科学学报,2014,32(5):508-514. |
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| 作者姓名： | 张国鹏 刘鹏 丁恩杰 |
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| 作者单位： | 中国矿业大学物联网研究中心，江苏徐州221008 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金，国家留学基金委公派博士后研究项目基金，中央高校基本科研业务费专项资金 |
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| 摘 要： | 应用数据中继技术改善矿井超宽带(ultra-wideband,UWB)无线通信系统的误码率性能,并研究误码率最低的中继节点部署策略.首先,分析UWB单跳数据链路(无中继)在矿井的多径传播特性和误码率.此后,在不增加传输能量的基础上,研究基于“解码再中继”协议的井下UWB多跳中继链路的误码率,提出误码率最低的中继节点部署策略.实验结果表明:采用所提出的最优中继节点部署策略,可以在不增加节点能量消耗的前提下将多跳UWB通信的误码率降低3～5 dB.
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| 关 键 词： | 矿井超宽带通信 中继转发 解码再中继 误码率 |
| 收稿时间： | 2014-04-01 |
| 修稿时间： | 2014-05-30 |
Relaying Based UWB Communication in Coal Mines |
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| ZHANG Guo-peng,LIU Peng,DING En-jie.Relaying Based UWB Communication in Coal Mines[J].Journal of Applied Sciences,2014,32(5):508-514. |
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| Authors: | ZHANG Guo-peng LIU Peng DING En-jie |
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| Institution: | Internet of Things Research Center, China University of Mining and Technology, Xuzhou 221008, Jiangsu Province, China |
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| Abstract: | This paper applies wireless relay technology to improve bit error rate (BER) performance of ultrawideband
(UWB) system in coal mines, and studies optimal relay deployment strategies for the lowest BERs
in different coal mine environments. The multipath propagation environment in coal mines and the resultant
BER performance for single-hop UWB links are discussed. Without increasing the transmission energy, BER
performance for multi-hop relaying based UWB transmissions is analyzed. Using the multi-hop relaying, a
decoding-and-forwarding (DF) based UWB transmission scheme is proposed. Simulation results show that,
compared with traditional single-hop UWB transmissions, the proposed method can achieve 35 dB BER
performance gain in various coal mine environments without extra energy consumption. |
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| Keywords: | UWB communication in underground coal mines relay decoding and forwarding bit error rate (BER) |
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