RIS-Aided Free-Space Optics Communications in A2G Networks over Inverted Gamma-Gamma Turbulent Channels

TL;DR

This paper analyzes the performance of RIS-assisted free-space optics communication over inverted Gamma-Gamma turbulent channels, considering pointing errors and security aspects, providing closed-form expressions and numerical validation.

Contribution

It introduces a novel framework for analyzing RIS-assisted FSO systems over IGGG channels with pointing errors and security considerations, deriving key performance metrics.

Findings

Derived closed-form expressions for outage probability and error rates.

Analyzed the impact of system parameters on performance.

Validated results through numerical simulations.

Abstract

With the advent of sixth-generation networks, reconfigurable intelligent surfaces (RISs) have revolutionized wireless communications through dynamic electromagnetic wave manipulation, thereby facilitating the adaptability and unparalleled control of real-time performance evaluations. This study proposed a framework to analyze the performance of RIS-assisted free-space optics (FSO) communication over doubly inverted Gamma-Gamma (IGGG) distributions with pointing error impairments. Furthermore, a special scenario addressing secure communication in the potential presence of an eavesdropper. Consequently, we derived closed-form expressions for the outage probability, average bit error rate, average channel capacity, average secrecy capacity, and secrecy outage probability by employing an asymptotic analysis to provide deeper insights into the influence of various system parameters. Finally, we verified our analytical results through appropriate numerical simulations.