Genetic algorithm based equalization for direct sequence ultra-wideband communications systems

Authors:
Nazmat Surajudeen-Bakinde;Xu Zhu;Jingbo Gao;Asoke K. Nandi
Affiliations:
Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK;Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK;Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK;Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK
Venue:
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Year:
2009

Citing 5
Cited 0

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Abstract

We propose a genetic algorithm (GA) based equalization approach for direct sequence Ultra-wideband (DS-UWB) wireless communications, where GA is combined with a RAKE receiver to combat the inter-symbol interference (ISI) due to the frequency selective nature of UWB channels for high data rate transmission. Simulation results show that the proposed GA based structure significantly outperforms the RAKE receiver. It also provides a close bit error rate (BER) performance to the optimal maximum likelihood detection (MLD) approach, while requiring a much lower computational complexity.