Branimir S. Jakšić

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In this paper, macrodiversity SC (selection combining) receiver with two microdiversity SC receivers is considered. Received signal experiences Gamma long term fading resulting in signal envelope power variation and short term fading resulting in signal envelope variation. Macrodiversity SC receiver reduces long term fading effects on system performances and microdiversity SC receivers reduce short term fading effects on system performances. Expression level crossing rate of macrodiversity SC receiver output signal envelope is calculated. Mathematical expressions are presented graphically to show the influence of Nakagami-m parameter severity and Gamma parameter severity on level crossing rate of proposed system.

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