Closed-form analysis of multibranch switched diversity with noncoherent and differentially coherent detection

Authors:
David Morales-Jiménez;José F. Paris;Kai-Kit Wong
Affiliations:
Department of Ingeniería de Comunicaciones, ETSIT, University of Málaga, E-29071 Málaga, Spain;Department of Ingeniería de Comunicaciones, ETSIT, University of Málaga, E-29071 Málaga, Spain;Department of Electronic and Electrical Engineering, University College London, Torrington Place, WC1E 7JE London, UK
Venue:
International Journal of Communication Systems
Year:
2013

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Abstract

Exact closed-form analytical expressions are derived for the average bit error probability of multibranch switched diversity systems over independent and identically Nakagami-m distributed fading channels. Practical schemes that use noncoherent or differentially coherent symbol detection are considered. The general bit error probability expression derived in this paper includes as particular cases the following signaling formats: orthogonal binary signaling, correlated binary signaling, differential phase-shift keying, and differential quadrature phase-shift keying. Finally, we apply our analytical results to study the impact of the switching threshold selection on the system performance. Copyright © 2011 John Wiley & Sons, Ltd.