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Frequency-Shift Filtering for OFDM Signal Recovery in Narrowband Power Line Communications

机译:窄带功率OFDm信号恢复的频移滤波   线路通信

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摘要

Power line communications (PLC) has been drawing considerable interest inrecent years due to the growing interest in smart grid implementation.Specifically, network control and grid applications are allocated the frequencyband of 0-500 kHz, commonly referred to as the narrowband PLC channel. Thisfrequency band is characterized by strong periodic noise which results in lowsignal to noise ratio (SNR). In this work we propose a receiver which usesfrequency shift filtering to exploit the cyclostationary properties of both thenarrowband power line noise, as well as the information signal, digitallymodulated using orthogonal frequency division multiplexing. An adaptiveimplementation for the proposed receiver is presented as well. The proposedreceiver is compared to existing receivers via analysis and simulation. Theresults show that the receiver proposed in this work obtains a substantialperformance gain over previously proposed receivers, without requiring anycoordination with the transmitter.
机译:近年来,由于对智能电网实施的兴趣日益浓厚,电力线通信(PLC)引起了人们的极大兴趣。特别是,为网络控制和电网应用分配了0-500 kHz的频带,通常称为窄带PLC通道。该频段的特点是强烈的周期性噪声,导致信噪比(SNR)低。在这项工作中,我们提出了一种接收机,该接收机使用频移滤波来利用窄带电力线噪声以及信息信号的循环平稳特性,并利用正交频分复用对信息信号进行数字调制。还提出了针对所提出的接收机的自适应实现。通过分析和仿真,将建议的接收器与现有接收器进行比较。结果表明,在这项工作中提出的接收机比以前提出的接收机获得了可观的性能增益,而无需与发射机进行任何协调。

著录项

  • 作者

    Shlezinger, Nir; Dabora, Ron;

  • 作者单位
  • 年度 2014
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
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