Capacity of dual-branch MRC system over correlated Nakagami-m fading channels with non-identical fading parameters and imbalanced average SNRs
by Pukhrambam Bijaya Devi; Amujao Yengkhom; Mohammad Irfanul Hasan; Gitanjali Chandwani
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 13, No. 2, 2017

Abstract: We present the closed-form expressions for the capacity with correlated, non-identical fading parameters and imbalanced average SNRs (Signal-to-Noise Ratios) of dual-branch MRC (Maximal Ratio Combining) diversity system over Nakagami-m fading channels. This capacity is evaluated for ORA (Optimum Rate Adaptation with constant transmit power) and CIFR (Channel Inversion with Fixed Rate) schemes. Numerical results have been presented and compared with the available capacity results of ORA and CIFR schemes in the literature. The effect of different practical constraints, e.g. non-identical fading parameters, fade correlation and level of imbalanced in average SNRs on the channel capacity of the systems, is analysed.

Online publication date: Tue, 21-Nov-2017

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