Optimization of wavelet based OFDM for multipath powerline channel by genetic algorithm

Authors:
Volkan Kumbasar;Oğuz Kucur;A. Arif Ergin;Ertan Öztürk
Affiliations:
Gebze Institute of Technology, Electronics Engineering Department, Gebze 41400, Kocaeli, Turkey;Gebze Institute of Technology, Electronics Engineering Department, Gebze 41400, Kocaeli, Turkey;Gebze Institute of Technology, Electronics Engineering Department, Gebze 41400, Kocaeli, Turkey;Zonguldak Karaelmas University, Electrical-Electronics Engineering Department, 67100 Zonguldak, Turkey
Venue:
Wireless Communications & Mobile Computing
Year:
2009

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Abstract

Using genetic algorithm (GA), optimal wavelets are obtained to reduce ISI and ICI powers of a wavelet-based orthogonal frequency division multiplexing (OFDM) system over a practical two path low-voltage powerline channel or two path fading channel by relaxing the perfect quadrate mirror filter (QMF) orthogonality. Optimum wavelet-based OFDM system experiences less interference compared to conventional and Daubechies (Db) wavelet-based OFDM systems. Copyright © 2008 John Wiley & Sons, Ltd.