Level crossing rate of macrodiversity system with three microdiversity receivers over shadowed weibull fading channel

Abstract

In this paper, the cellular mobile communication system with microdiversity and macrodiversity reception operating over Gamma shadowed Weibull multipath fading environment is analyzed. Macrodiversity selection combining (SC) receiver reduces Gamma long term fading effects and three microdiversity SC receivers mitigate Weibull short term fading effects on the system performance. The useful closed form expression for average level crossing rate of SC receiver output signal envelope operating over Weibull multipath fading channel is derived and this expression is used for calculation the average level crossing rate of proposed macrodiversity system. The influence of Weibull fading parameters, Gamma shadowing severity parameter and shadowing correlation coefficient on average level crossing rate is analyzed.