PERFORMANCE OF MACRO DIVERSITY WIRELESS COMMUNICATION SYSTEM OPERATING IN WEIBUL MULTIPATH FADING ENVIRONMENT

Suad N Suljovic, Dejan Milic, Zorica Nikolic, Stefan Panic, Mihajlo Stefanovic, Djoko Bandjur

DOI Number
10.2298/FUEE1704599S
First page
599
Last page
609

Abstract


In this paper, we consider wireless mobile radio communication system with macro diversity reception. Signal is subject to Weibull small scale fading and Gamma large scale fading resulting in system performance degradation. Receiver uses macro diversity selection combining (SC) technique in order to reduce the impact of long term fading effects, and two micro diversity SC branches are used to mitigate Weibull short term fading effects on system performance. Probability density function (PDF), and cumulative distribution function (CDF), as well as level crossing rate (LCR) and average fade duration (AFD) of the SC receiver output signal envelope are evaluated. The obtained expressions converge rapidly for all considered values of Weibull fading parameter and Gamma shadowing severity parameter. Mathematical results are studied in order to analyze the influence of Weibull fading parameter and Gamma shadowing severity parameter on statistical properties of the SC receiver output signal.

Keywords

Weibull short term fading, probability density function, cumulative distribution function, level crossing rate, average fade duration

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References


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ISSN: 0353-3670 (Print)

ISSN: 2217-5997 (Online)

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