Closed-Form and Asymptotic BER Analysis of the Fluctuating Double-Rayleigh with Line-of-Sight Fading Channel

TL;DR

This paper provides a comprehensive analysis of the average bit error rate for a generalized double-Rayleigh fading channel with line-of-sight, including closed-form, asymptotic expressions, and efficient approximations, validated by simulations.

Contribution

It introduces a closed-form and asymptotic BER analysis for a generalized fading model with shadowed line-of-sight, enhancing understanding of its performance characteristics.

Findings

Closed-form BER expressions derived for the channel model.

Asymptotic expressions for extreme channel parameters.

Numerical simulations confirm the accuracy of the analysis.

Abstract

Recently, a generalization of the double-Rayleigh with line-of-sight channel fading model taking into account shadowing of the line-of-sight component has been proposed. In this research, a closed-form analysis of the average bit error rate for MPSK/MQAM modulations is performed. The derived solution is accompanied by proposed numerically efficient approximation and all possible asymptotic expressions that correspond to extreme channel parameters. Lastly, a numerical simulation was performed that demonstrated the correctness of the derived results.