Linear combining of nonlinear preprocessors for OFDM-based power-line communications

F.H. Juwono, Qinghua Guo, Y. Chen, Lu Xu, David Huang, Kitpo Wong

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)


    © 2015 IEEE. Nonlinear preprocessors, including conventional clipping, blanking, joint blanking/clipping, and deep clipping, have been employed to mitigate the impulsive noise in orthogonal frequency division multiplexing-based power-line communications. Those nonlinear preprocessors are characterized by one or two thresholds, which are optimized to achieve an optimum output signal-to-noise ratio (SNR). In this paper, we aim to further improve the output SNR by linearly combining two nonlinear preprocessors. Both analytical and simulation results show that the proposed method yields better output SNR and symbol/bit error rate performance than the individual ones.
    Original languageEnglish
    Article number7052382
    Pages (from-to)253-260
    Number of pages8
    JournalIEEE Transactions on Smart Grid
    Issue number1
    Early online date2 Mar 2015
    Publication statusPublished - Jan 2016


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