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Closed‐Form Expressions for Selection Combining System Statistics over Correlated Generalized‐K Fading Channels in the Presence of Interference
Authors:Bojana Z. Nikolic  Mihajlo C. Stefanovic  Stefan R. Panic  Jelena A. Anastasov  Borivoje Milosevic
Abstract:This paper considers the effects of simultaneous correlated multipath fading and shadowing on the performances of a signal‐to‐interference ratio (SIR)‐based dual‐branch selection combining (SC) diversity receiver. This analysis includes the presence of cochannel interference. A generalized fading/shadowing channel model in an interference‐limited correlated fading environment is modeled by generalized‐K distribution. Closed‐form expressions are obtained for probability density function and cumulative distribution function of the SC output SIR, as well as for the outage probability. Based on this, the influence of various fading and shadowing parameter values and the correlation level on the outage probability is examined.
Keywords:Composite fading channels  generalized‐K distribution  selection combining  signal‐to‐interference ratio (SIR)  outage probability
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