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Article

Cyclostationary Impulsive Noise Mitigation in the Presence of Cyclic Frequency Offset for Narrowband Powerline Communication Systems

1
Department of Electrical Engineering, National Ilan University, Yilan 26047, Taiwan
2
Graduate Institute of Communication Engineering, College of Electrical Engineering and Computer Science, National Taiwan University, Taipei 10617, Taiwan
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(6), 988; https://doi.org/10.3390/electronics9060988
Received: 9 May 2020 / Revised: 5 June 2020 / Accepted: 10 June 2020 / Published: 13 June 2020
(This article belongs to the Special Issue Advances of Power Line Communication (PLC))
Cyclostationary impulsive noise (CSIN) is the dominant source of additive noise in narrowband powerline communication (NB-PLC) systems. Frequency-shift (FRESH) filters have been applied to NB-PLC systems based on orthogonal frequency division multiplexing (OFDM) to mitigate CSIN and enhance the OFDM signals by leveraging the difference in cyclic frequency associated with CSIN and OFDM data symbols. Note that under the effects of frequency fluctuation in the mains voltage, the cyclic frequency offset associated with CSIN can degrade the performance of FRESH-filter receivers. To alleviate such an impact on the FRESH-filter receivers, this paper presents a method for the estimation of the cyclic frequency offset by observing phase variations in the coefficients of the FRESH filter. Computer simulations based on IEEE 1901.2 specifications demonstrate the effectiveness of the proposed scheme in suppressing the cyclic frequency relative error by at least 15.45 dB. Following compensation for the cyclic frequency offset, the proposed scheme achieved a bit error rate of 10 4 with an E b / N 0 loss of only 0.7 dB, compared with the ideal case. Compared to the case without the cyclic frequency offset compensation, the proposed scheme achieved an E b / N 0 gain of 2.7 dB. View Full-Text
Keywords: cyclostationary impulsive noise (CSIN); cyclic frequency offset; FRESH filter; narrowband powerline communication (NB-PLC); IEEE 1901.2; OFDM cyclostationary impulsive noise (CSIN); cyclic frequency offset; FRESH filter; narrowband powerline communication (NB-PLC); IEEE 1901.2; OFDM
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MDPI and ACS Style

Chien, Y.-R.; Lin, J.-L.; Tsao, H.-W. Cyclostationary Impulsive Noise Mitigation in the Presence of Cyclic Frequency Offset for Narrowband Powerline Communication Systems. Electronics 2020, 9, 988. https://doi.org/10.3390/electronics9060988

AMA Style

Chien Y-R, Lin J-L, Tsao H-W. Cyclostationary Impulsive Noise Mitigation in the Presence of Cyclic Frequency Offset for Narrowband Powerline Communication Systems. Electronics. 2020; 9(6):988. https://doi.org/10.3390/electronics9060988

Chicago/Turabian Style

Chien, Ying-Ren; Lin, Jian-Liang; Tsao, Hen-Wai. 2020. "Cyclostationary Impulsive Noise Mitigation in the Presence of Cyclic Frequency Offset for Narrowband Powerline Communication Systems" Electronics 9, no. 6: 988. https://doi.org/10.3390/electronics9060988

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