Title: Capacity of dual branch MRC system for correlated imbalanced average SNRs over Nakagami-m fading channels using OPRA scheme

Authors: Amujao Yengkhom; Pukhrambam Bijaya Devi; Mohammad Irfanul Hasan; Gitanjali Chandwani

Addresses: Department of Electronics and Communication Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand, India ' Department of Electronics and Communication Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand, India ' Department of Electronics and Communication Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand, India ' Department of Electronics and Communication Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand, India

Abstract: The closed-form expressions of the capacity for dual branch Maximal Ratio Combining (MRC) diversity system with correlated and imbalanced average Signal-to-Noise Ratio (SNRs) over Nakagami-m fading channels are presented. Our approach is based on probability density function to find the mathematical expressions for Optimal Power and Rate Adaptation (OPRA) scheme. Numerically evaluated results are shown and compared with the available capacity results of OPRA scheme in the literature. The effect of different practical constraint i.e. - fade correlation and level of imbalanced in average SNRs on the channel capacity of the systems, is analysed.

Keywords: channel capacity; dual-branch; maximal ratio combining; optimum rate adaptation.

DOI: 10.1504/IJWMC.2019.103117

International Journal of Wireless and Mobile Computing, 2019 Vol.17 No.4, pp.383 - 392

Accepted: 28 Jun 2019
Published online: 30 Sep 2019 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article