Genetic Algorithm Based Frequency Domain Equalization for DS-UWB Systems without Guard Interval

In this work, a genetic algorithm (GA) based frequency domain equalization (FDE) scheme referred to as FDE-GA, which does not require any guard interval (GI),is proposed for direct sequence-ultra wideband (DS-UWB) wireless communication systems and is shown to significantly outperform the RAKE recei...

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Bibliographic Details
Main Authors: Surajudeen-Bakinde, N., Xu Zhu, Jingbo Gao, Nandi, A. K., Hai Lin
Format: Conference Proceeding
Language:English
Subjects:
Bit error rate
Complexity theory
Fading
Frequency domain analysis
Genetic algorithms
Multipath channels
Receivers
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Summary:In this work, a genetic algorithm (GA) based frequency domain equalization (FDE) scheme referred to as FDE-GA, which does not require any guard interval (GI),is proposed for direct sequence-ultra wideband (DS-UWB) wireless communication systems and is shown to significantly outperform the RAKE receiver. The proposed FDE-GA receiver also has a dramatic complexity reduction over the previous RAKE-GA receiver, while achieving a comparable bit error rate (BER) performance. The FDE-GA structure achieves a much higher bandwidth efficiency than conventional FDE methods, because the inter-block-interference (IBI), as a result of the absence of the GI, is removed effectively within each block before the GA.
ISSN:1550-3607
1938-1883
DOI:10.1109/icc.2011.5962615