Unitary matrix frequency modulated OFDM for power line communications over impulsive noise channels

Authors:
Chang-Jun Ahn;Hiroshi Harada;Satoshi Takahashiz
Affiliations:
National Institute of Information and Communications Technology, Yokosuka, Japan;-;Faculty of Information Science, Hiroshima City University, Hiroshima, Japan
Venue:
EHAC'06 Proceedings of the 5th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications
Year:
2006

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Abstract

Power line channel is the time-frequency variant channel with impulsive noise. Therefore, power line communication makes performance degradation due to time-frequency variant and impulsive noise. To overcome performance degradation, we consider the unitary signal constellation scheme and investigate the performance improvement of unitary matrix frequency modulated orthogonal frequency-division multiplexing (OFDM) for power line communication (UMFM-PLC/OFDM) over a PLC channel, and evaluate the BER performance. The proposed UMFM-PLC/OFDM system outperforms compared with the conventional PLC/OFDM.