Rapid search algorithms for code acquisition in UWB impulse radio communications

Authors:
L. Reggiani;G. M. Maggio
Affiliations:
Dipt. di Elettronica ed Informazione, Politecnico di Milano, Italy;-
Venue:
IEEE Journal on Selected Areas in Communications
Year:
2006

Citing 0
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Abstract

Ultrawideband (UWB) impulse radio is an emerging technology suitable for high-rate tactical wireless communications. One of the crucial challenges for a connecting station remains the initial code acquisition, in a hostile propagation environment (e.g., urban combat). In this paper, we address the coarse acquisition of pseudonoise (PN) codes and propose algorithms for speeding up the acquisition process and/or reducing the complexity of the acquisition algorithm itself. Also, in the case of energy detection, we show that the front-end sampling rate may be reduced. An in-depth analysis, supported by simulations in the presence of multipath is presented, and the results discussed.