Second Order Statistic Analysis of Selection Macro-DiversityCombining over Gama Shadowed Rayleigh Fading Channels
Authors: M. Stefanović, B. Mirić, P. Spalević, S. Panić
Keywords: Macrodiversity system, Markov chains, Gamma distribution
Abstract:
In this paper an approach to the second order statistics analysis of macrodiversity system operating over the Gamma shadowed Rayleigh fading channels is presented. Simultaneous influence of multipath fading and shadowing is allievated through the usage of macrodiversity system. We have considered SC (selection combining) macrodiversity system consisting of two base stations (microdiversity systems). Cases of MRC (Maximal Ratio Combining) and SC diversity with arbitrary number of branches, applied at microlevel over the Rayleigh fading channels are discussed. Selection between maco-combiners is based on output signal power values. Numerical results for LCR (Level crossing rate) at the output of this system are presented and discussed in the function of various system parameters.
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