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首页> 外文期刊>International Journal of Advancements in Technology >The Bit Error Rate analysis of Direct Sequence Ultra Wide Band System in Mine Channel
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The Bit Error Rate analysis of Direct Sequence Ultra Wide Band System in Mine Channel

机译：矿井直接序列超宽带系统误码率分析

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The necessity for wireless communications in underground mines is well understood. Some companies have started to deploy modern wireless networks in mine galleries with the objective of increasing safety and productivity. This paper presents the Bit Error Rate (BER) analysis of Direct Sequence Pulse Amplitude Modulation (PAM) Ultra Wide Band (UWB) system for underground mine environment. Discrete time channel impulse response is used to build up revised channel model for underground mine which is based on the UWB channel model proposed by IEEE802.15.3a.With the revised channel model, we compare the performance of IEEE channel and mine channel by considering Mean Excess Delay, Root Mean Square (RMS) delay and Number of significant Paths with in 10 dB of peak (NP 10dB) and observe the significant increase in the parameter. We evaluated the BER performance using RAKE receiver employing maximal ratio combining (MRC) for different data rate, repeat bit and number of RAKE figure in underground mine channel. Simulation results shows that DS-PAM-UWB system can sustain in the dense multipath environment of underground mine and provide acceptable BER.
机译：井下无线通信的必要性已广为人知。一些公司已经开始在矿井画廊中部署现代无线网络，以提高安全性和生产率。本文介绍了用于地下矿井环境的直接序列脉冲幅度调制（PAM）超宽带（UWB）系统的误码率（BER）分析。在IEEE802.15.3a提出的UWB信道模型的基础上，采用离散时间信道脉冲响应建立地下矿井的修正信道模型，并结合修正信道模型，通过考虑均值的方法比较IEEE信道和矿井信道的性能。过量延迟，均方根（RMS）延迟和具有10 dB峰值（NP 10dB）的有效路径数，并观察到该参数的显着增加。我们使用RAKE接收器对地下矿井通道中的不同数据速率，重复比特和RAKE位数进行了评估，并使用了最大比合并（MRC）来评估BER性能。仿真结果表明，DS-PAM-UWB系统能够在地下矿井的密集多径环境中维持并提供可接受的BER。

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