# Shadowed FSO/mmWave Systems with Interference

## TL;DR

This paper analyzes the performance of mixed FSO/mmWave relay networks with interference, providing unified analytical expressions for key metrics and proposing an optimal power allocation strategy to enhance system reliability.

## Contribution

It introduces a unified H-transform based framework for analyzing mixed FSO/mmWave systems with interference, including closed-form and asymptotic performance expressions.

## Key findings

- Derived closed-form outage probability and BER expressions.
- Provided asymptotic high-SINR performance analysis.
- Proposed an optimal power allocation strategy to minimize outage.

## Abstract

We investigate the performance of mixed free space optical (FSO)/millimeter-wave (mmWave) relay networks with interference at the destination. The FSO/mmWave channels are assumed to follow Malaga-M/Generalized-K fading models with pointing errors in the FSO link. The H-transform theory, wherein integral transforms involve Fox's H-functions as kernels, is embodied to unifying the performance analysis framework that encompasses closed-form expressions for the outage probability, the average bit error rate (BER) and the average capacity. By virtue of some H-transform asymptotic expansions, the high signal-to-interference-plus-noise ratio (SINR) analysis reduces to easy-to-compute expressions for the outage probability and BER, which reveals inside information for the system design. We finally investigate the optimal power allocation strategy, which minimizes the outage probability.

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Source: https://tomesphere.com/paper/1905.00479