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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...
Wireless Multiuser receivers suffer from their relatively higher computational complexity that prevents widespread use of this technique. In addition, one of the main characteristics of multi-channel communications that can severely degrade the performance is the inconsistent and low values of SNR that result in high BER and poor channel capacity. It has been shown that the computational complexity...
In this paper, a fast antenna selection algorithm is proposed in wireless multiple input multiple output systems. The algorithm makes use of an efficient recursive QR factorization for selecting the sub-optimal antenna subset in terms of minimum error rate. The proposed algorithm decreases the computational complexity greatly, and improves the performance of the linear receiver. Simulation results...
In this paper we present a transceiver scheme based on a novel equalizer for indoor DS-UWB systems. The proposed scheme consists of a transmitter, a receiver with a novel equalizer which can reduce the overhead during the training phase and reduce the computation complexity without inducing loss of the BER performance. Furthermore, we evaluate performance on convergence rate, complexity and robustness...
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