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Closed-form PDF for multiuser TR-UWB systems under gaussian noise and impulsive interference

Abstract : In most existing transmitted-reference ultra-wideband (TR-UWB) communication systems, receivers use the standard Gaussian approximation (SGA) for multiuser interference (MUI). It is an assumption used in most conventional multiuser systems, where the MUI tends to a Gaussian process by the central limit theorem, and convergence is relatively fast with respect to the number of users. However, for TR-UWB systems which are developed for short-range applications, we have a small number of active users. In this case, significant performance degradation is found in TR-UWB receivers due to the impreciseness of SGA. In this paper, we show that the Middleton class-A model is a more appropriate statistical model for MUI modeling in TR-UWB systems than the often used SGA. A closed-form expression for the probability density function (PDF) of the TR-UWB system under MUI, Gaussian noise and impulsive alpha-stable interference is developed. All these analytical results are confirmed by numerical simulations. (17 References).
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https://hal.inria.fr/hal-01023119
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Submitted on : Friday, July 11, 2014 - 3:10:30 PM
Last modification on : Friday, November 6, 2020 - 4:37:46 AM

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  • HAL Id : hal-01023119, version 1

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Djamel Abed, Salah Redadaa, Smail Tedjini. Closed-form PDF for multiuser TR-UWB systems under gaussian noise and impulsive interference. Progress In Electromagnetics Research, PIER C, IEEE, 2013. ⟨hal-01023119⟩

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