Performance Analysis on Visible Light Communications With Multi-Eavesdroppers and Practical Amplitude Constraint

TL;DR

This paper analyzes the secure performance of visible light communication systems with multiple eavesdroppers under practical amplitude constraints, deriving bounds and expressions using stochastic geometry.

Contribution

It introduces a novel analysis considering amplitude constraints and multiple eavesdroppers, providing closed-form bounds and low-complexity expressions for VLC security performance.

Findings

Derived closed-form bounds for secrecy outage probability

Obtained low-complexity expressions verified by simulations

Analyzed impact of eavesdropper locations on security metrics

Abstract

In this paper the secure performance for the visible light communication (VLC) system with multiple eavesdroppers is studied. By considering the practical amplitude constraint instead of an average power constraint in the VLC system, the closed-form expressions for the upper and the lower bounds of the secrecy outage probability and the average secrecy capacity are derived. Since the locations for both legitimate receiver and eavesdroppers are unknown as well as random, the stochastic geometry method is introduced for problem formulation. Moreover, accurate expressions with a low computational complexity are obtained with the rigorous derivation. Simulation results verify the correctness of our theoretical analysis.