Mitigation of effect of impulsive noise for OFDM systems over power line channels

Impulsive noise introduces significant time variance into the power line channel and causes performance degradation of orthogonal frequency division multiplexing (OFDM) systems. In this paper, we provide a performance analysis for OFDM-based power line communications in the presence of impulsive noi...

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Bibliographic Details
Published in2008 IEEE International Symposium on Power Line Communications and Its Applications pp. 386 - 390
Main Authors Yong-Hwa Kim, Kyong-Hoe Kim, Hui-Myoung Oh, Kwan-Ho Kim, Seong-Cheol Kim
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2008
Subjects
Additive white noise
Background noise
Channel estimation
Degradation
Gaussian noise
impulsive noise
Noise level
OFDM
orthogonal frequency-division multiplexing (OFDM)
Phase shift keying
Power line communication (PLC)
Power line communications
Programmable control
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Summary:Impulsive noise introduces significant time variance into the power line channel and causes performance degradation of orthogonal frequency division multiplexing (OFDM) systems. In this paper, we provide a performance analysis for OFDM-based power line communications in the presence of impulsive noise. Performance degradation of coherent M-ary PSK and differential MPSK can be mitigated by a signal level limiter. Simulation results present that the optimum signal level can significantly improve the performance of OFDM systems over power line channels with impulsive noise.
ISBN:1424419751
9781424419753
DOI:10.1109/ISPLC.2008.4510459