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    Deep clipping for impulsive noise mitigation in OFDM-based power-line communications

    Access Status
    Fulltext not available
    Authors
    Juwono, Filbert Hilman
    Guo, Q.
    Huang, D.
    Wong, K.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Juwono, F.H. and Guo, Q. and Huang, D. and Wong, K. 2014. Deep clipping for impulsive noise mitigation in OFDM-based power-line communications. IEEE Transactions on Power Delivery. 29 (3): pp. 1335-1343.
    Source Title
    IEEE Transactions on Power Delivery
    DOI
    10.1109/TPWRD.2013.2294858
    ISSN
    0885-8977
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/71479
    Collection
    • Curtin Research Publications
    Abstract

    Nonlinear preprocessors, including clipping, blanking, and joint blanking/clipping have been proposed to be employed in orthogonal frequency-division multiplexing systems for mitigating the impulsive noise in power-line communications. In this paper, we propose using a new variant of nonlinear preprocessor, namely, deep clipping, to mitigate the impulsive noise. In contrast to clipping, blanking, and joint blanking/clipping, where one or two thresholds is used to detect if the impulsive noise occurs, and if the impulsive noise occurs how to handle it, deep clipping is characterized by two alternative parameters, namely, a threshold and a depth factor. By optimizing the two parameters, we find that deep clipping achieves better signal-to-noise ratio (SNR) performance than clipping, blanking, and joint blanking/clipping. In addition, we present a mathematical expression for deep clipping and show that the SNR expressions regarding conventional clipping, blanking, and joint blanking/clipping can be easily obtained by using our analytical methods. © 1986-2012 IEEE.

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