Title: A new technique for environment identification in impulsive radio systems

Authors: Lorenzo Mucchi; Tommaso Landi

Addresses: Department of Electronics and Telecommunications, University of Florence, Via di Santa Marta 3, 50139 Firenze, Italy ' Department of Electronics and Telecommunications, University of Florence, Via di Santa Marta 3, 50139 Firenze, Italy

Abstract: Current wireless communication systems strongly need to know whether a line-of-sight (LOS) or non-LOS (NLOS) path is present between transmitter and receiver. The next generation wireless communication and localisation systems will require a more accurate environment identification in order to ensure a given level of QoS. In this paper we introduce a new environment identification technique which is able to identify not only the LOS/NLOS condition but also the typology of environment in which the transmitter and receiver operate: this allows both a more accurate localisation of all the users and a proper configuration of the receiver to best adapt to the propagation (cognitive approach) or network (cooperative approach) conditions. Unlike the techniques previously discussed in the literature, the one herein proposed does not require any estimation (ex. of channel parameters), while it is only based on a statistical analysis of the raw received UWB probe signal.

Keywords: environment identification; channel identification; UWB probe signals; ultra wideband; impulse radio; wireless communications; cognitive receivers; user localisation; self-configuration; adaptive modulation; adaptive coding; robust communications; cooperative networks.

DOI: 10.1504/IJUWBCS.2012.051045

International Journal of Ultra Wideband Communications and Systems, 2012 Vol.2 No.3, pp.141 - 155

Published online: 30 Aug 2014 *

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