GPU-Enabled Simulation of a Combined Macrodiversity System in Gamma-Shadowed Nakagami-m Fading Channel

We propose the combined diversity receiver consisting of macro-diversity (MD) selection combining (SC) receiver and two micro-diversity (µD) maximum ratio combining (MRC) receivers, as a solution to the impediments a mobile signal undergoes in a cellular mobile radio Gamma-shadowed channel with a short-term Nakagami-m fading. The closed-form expressions for the moment generating function (MGF) for both µD MRC receivers’ output signal and macro-diversity SC receiver’s output signal envelopes are derived. By varying Nakagami-m short term fading severity parameter m and the order of Gamma distribution c we have considered and discussed the change in system performances and graphically presented numerical results. Moreover, we integrate the obtained formulas within the simulation environment for optimal network planning leveraging general-purpose computation on GPU for faster execution.