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We propose the least squares support vector classifier (LS-SVC) based equalization schemes for direct sequence ultra wideband (DS-UWB) systems, where a bank of independent LS-SVCs are employed to detect each block of signals. The LS-SVC based equalizers provide a close bit error rate (BER) performance in the line-of-sight (LOS) scenario to the case with additive white Gaussian noise (AWGN). Simulation...
We investigate the effects of two different scaling methods and two mutation types on the performance of a genetic algorithm (GA) based equalization approach for direct sequence Ultra-wideband (DS-UWB) wireless communications. Also, we use adaptive generation along with some other parameters to know their effects on the performance in comparison to a previous work, where GA is combined with a RAKE...
Ultra wideband (UWB) radio positioning systems are being developed for many emerging applications. This paper is aimed at addressing the aspect of the antenna by identifying the main requirements and technical challenges, and examining available antennas so as to find suitable solutions for this special application.
Starting with the FCCpsilas first report & order in 2002, more and more research and development works about the applications of UWB technology have been carried out. The FCC constraints on the spectrum of the EIRP density of the pulses applied in UWB applications include the average and peak emission limits. This paper presents the investigation on the spectral mask of the FCC compliant UWB pulses...
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