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    On the performance of blanking nonlinearity in real-valued OFDM-based PLC

    Access Status
    Fulltext not available
    Authors
    Juwono, Filbert Hilman
    Guo, Q.
    Huang, D.
    Chen, Y.
    Xu, L.
    Wong, K.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Juwono, F.H. and Guo, Q. and Huang, D. and Chen, Y. and Xu, L. and Wong, K. 2018. On the performance of blanking nonlinearity in real-valued OFDM-based PLC. IEEE Transactions on Smart Grid. 9 (1): pp. 449-457.
    Source Title
    IEEE Transactions on Smart Grid
    DOI
    10.1109/TSG.2016.2606643
    ISSN
    1949-3053
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/73231
    Collection
    • Curtin Research Publications
    Abstract

    © 2016 IEEE. To mitigate the impulsive noise in orthogonal frequency-division multiplexing (OFDM)-based power-line communications (PLC), a blanker can be employed at the receiver. In the literature, the performance of the blanker has been discussed and analyzed thoroughly. However, the analysis was limited only to passband OFDM PLC systems with complex-valued baseband representation. This paper aims to derive a mathematical expression of the output signal-to-noise ratio (SNR) of a blanker in baseband OFDM-based PLC, which are real-valued and used in some PLC standards. We also analyze the performance of separate real/imaginary blanking, instead of the traditional amplitude blanking, in passband OFDM-based PLC systems. It will be shown that the performance of amplitude blanking is similar to separate real/imaginary blanking in high signal-to-impulsivenoise ratio (SINR) values. However, when the SINR is low, the performance of amplitude blanking is better than the separate real/imaginary blanking. The difference is about 1 dB for SINR = -10 dB and 1.5 dB for SINR = -30 dB when signalto- background-noise ratio, SBNR = 25 dB and impulsive noise probability p = 0.01.

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