Level Crossing Rate of Macrodiversity System Operating over Gamma Shadowed Rician Fading Channel
نویسندگان
چکیده
Macrodiversity system with macrodiversity selection combining (SC) receiver and two microdiversity SC receivers is considered. Received signal is affected simultaneously to Gamma long term fading and Rician short term fading resulting in system performance degradation. Macrodiversity SC receiver reduces Gamma shadowing effects and microdiversity SC receivers reduce multipath fading effects on bit error probability. Closed form expression for average level crossing rate of macrodiversity SC receiver output signal envelope is evaluated. Numerical results are presented graphically to show the influence of Gamma long term fading severity, shadowing correlation and Rician factor on average level crossing rate. Keywordsfading channel; Gamma shadowed; Rician factor; selection combining (SC).
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