TY - JOUR
T1 - Linear combining of nonlinear preprocessors for OFDM-based power-line communications
AU - Juwono, Filbert H.
AU - Guo, Qinghua
AU - Chen, Yifan
AU - Xu, Lu
AU - Huang, Defeng David
AU - Wong, Kit Po
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/1
Y1 - 2016/1
N2 - 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.
AB - 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.
KW - Impulsive noise
KW - Linear combining
KW - Nonlinear preprocessor
KW - Power-line communications (PLC)
UR - http://www.scopus.com/inward/record.url?scp=84960445050&partnerID=8YFLogxK
U2 - 10.1109/TSG.2015.2403953
DO - 10.1109/TSG.2015.2403953
M3 - Article
AN - SCOPUS:84960445050
SN - 1949-3053
VL - 7
SP - 253
EP - 260
JO - IEEE Transactions on Smart Grid
JF - IEEE Transactions on Smart Grid
IS - 1
M1 - 7052382
ER -