Performance Analysis and Optimization of Tc-DTR IR-UWB Receivers over Multipath Fading Channels with Tone InterferenceReportar como inadecuado




Performance Analysis and Optimization of Tc-DTR IR-UWB Receivers over Multipath Fading Channels with Tone Interference - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

* Corresponding author 1 Division Télécoms et Réseaux L2S - Laboratoire des signaux et systèmes 2 DIEI - Department of Electrical and Information Engineering

Abstract : In this paper, we analyze the performance of a particular class of transmitted-reference receivers for impulse radio ultra wideband communication systems, which is called chip-time differential transmitted-reference Tc-DTR. The analysis aims at investigating the robustness of this receiver to single-tone and multi-tone narrowband interference NBI and comparing its performance with other non-coherent receivers that are proposed in the literature. It is shown that the Tc-DTR scheme provides more degrees of freedom for performance optimization and that it is inherently more robust to NBI than other non-coherent receivers. More specifically, it is analytically proved that the performance improvement is due to the chip-time-level differential encoding-decoding of the direct sequence DS code and to an adequate design of DS code and average pulse repetition time. The analysis encompasses performance metrics that are useful for both data detection i.e., average bit error probability and timing acquisition i.e., false-alarm probability Pfa and detection probability Pd. Moving from the proposed sem-analytical framework, the optimal code design and system parameters are derived, and it is highlighted that the same optimization criteria can be applied to all the performance metrics considered in this paper. In addition, analytical frameworks and theoretical findings are substantiated through Monte Carlo simulations.





Autor: Marco Di Renzo - Dario De Leonardis - Fabio Graziosi - Fortunato Santucci -

Fuente: https://hal.archives-ouvertes.fr/



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