Performance of macrodiversity system with two EGC diversity receivers in the presence of shadowed multipath fading

In this paper, macro diversity Selection Combining (SC) system with two Equal Gain Combining (EGC) diversity receivers operating over shadowed multipath fading environment is considered. The received signal is subjected simultaneously to Gamma long term fading and Nakagami-m short term fading resulting in signal envelope variation and signal envelope power variation. The moments of macro SC receiver output signal are evaluated. Macro diversity SC receiver is used to reduce Gamma long term fading effects on system performance and micro diversity EGC receivers are used to mitigate Nakagami-m short term fading effects on moments. The numerical results are presented graphically to show the influence of severity of Nakagami-m fading, severity of Gamma fading and correlation coefficient on moments of macro SC receiver output signal envelope.