New Results on the Fluctuating Two-Ray Model with Arbitrary Fading Parameters and Its Applications

TL;DR

This paper introduces new exact analytical expressions for the fluctuating two-ray (FTR) fading model with arbitrary parameters and evaluates its impact on digital communication system performance.

Contribution

It provides the first exact formulas for the FTR distribution with arbitrary parameters and analyzes their effects on system capacity and error rates.

Findings

New analytical expressions for FTR distribution functions

Performance evaluation of systems over FTR channels

Insights into parameter effects on communication reliability

Abstract

The fluctuating two-ray (FTR) fading model provides a much better fit than other fading models for small-scale fading measurements in millimeter wave communications. In this paper, using a mixture of gamma distributions, new exact analytical expressions for the probability density and cumulative distribution functions of the FTR distribution with arbitrary fading parameters are presented. Moreover, the performance of digital communication systems over the FTR fading channel is evaluated in terms of the channel capacity and the bit error rate. The interaction between channel fading parameters and system performance is further investigated. Our newly derived results extend and complement previous knowledge of the FTR fading model.