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

Author

Kim, Yong-Hwa ; Kim, Kyong-Hoe ; Oh, Hui-Myoung ; Kim, Kwan-Ho ; Kim, Seong-Cheol

Author_Institution

Korea Electrotechnol. Res. Inst., Ansan

fYear

2008

fDate

2-4 April 2008

Firstpage

386

Lastpage

390

Abstract

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.

Keywords

OFDM modulation; carrier transmission on power lines; differential phase shift keying; impulse noise; telecommunication channels; OFDM systems; differential MPSK; impulsive noise; performance degradation; power line channels; Additive white noise; Background noise; Channel estimation; Degradation; Gaussian noise; Noise level; OFDM; Phase shift keying; Power line communications; Programmable control; Power line communication (PLC); channel estimation; impulsive noise; orthogonal frequency-division multiplexing (OFDM);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Line Communications and Its Applications, 2008. ISPLC 2008. IEEE International Symposium on

Conference_Location

Jeju city, Jeju Island

Print_ISBN

978-1-4244-1975-3

Electronic_ISBN

978-1-4244-1976-0

Type

conf

DOI

10.1109/ISPLC.2008.4510459

Filename

4510459