WSEAS Transactions on Communications
Print ISSN: 1109-2742, E-ISSN: 2224-2864
Volume 15, 2016
Level Crossing Rate of Macrodiversity SC Receiver Output Process in the Presence of Weibull Short Term Fading, Gamma Long Term Fading and Weibull Cochanell Interference
Authors: , , ,
Abstract: In this paper, macrodiversity reception with macrodiversity (MAD) selection combining (SC) receiver and two microdiversity (MID) SC receivers operating over Gamma shadowed Weibull short term fading channel in the presence of cochannel interference subjected to Weibull multipath fading is observed. Level crossing rate (LCR) of the ratio of two Weibull random processes is evaluated and this expression is used for calculation the LCR at the output of MID SC receivers. The closed form expression of LCR at the output of MAD SC receiver is also determined. The influence of Gamma long term fading severity parameter, Gamma long term fading correlation coefficient, Weibull fading nonlinearity parameter of desired signal and Weibull fading nonlinearity parameter of cochannel interference on LCR of MAD system is studied and discussed.
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Keywords: cochannel interference, Gamma long term fading, Level crossing rate (LCR), Weibull short term fading
Pages: 285-291
WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 15, 2016, Art. #31