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Performance Evaluation of CE-OFDM in PLC Channel

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Author(s): El ghzaoui Mohammed, Belkadid Jamal, Benbassou Ali

Journal: Signal Processing : An International Journal
ISSN 1985-2339

Volume: 4;
Issue: 6;
Start page: 318;
Date: 2011;
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Keywords: OFDM | CE-OFDM | CPM | BER | PAPR

ABSTRACT
One major drawback associated with an OFDM system is that the transmitter’soutput signal may have a high peak-to-average ratio (PAPR). High levels of PARmay be a limiting factor for power line communication (PLC) where regulatorybodies have fixed the maximum amount of transmit power. To overcome thisproblem, many approaches have been presented in the literature. One potentialsolution for reducing the peak-to-average power ratio (PAPR) in an OFDMsystem is to utilize a constant envelope OFDM (CE-OFDM) system. This paperdescribes a CE-OFDM based modem for Power Line Communications (PLC)over the low voltage distribution network. The impact of the electrical applianceson the signal transmission is investigated. The good performances of the BERhave been checked by the simulation platform of real PLC channel using Matlab.Finally, CE-OFDM-CPM is compared with conventional OFDM under HomePlugAV..

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