RIS-Assisted Simultaneous Legitimate Monitoring and Jamming for Industrial Wireless Networks

TL;DR

This paper introduces a RIS-assisted method for simultaneous legitimate monitoring and jamming in industrial wireless networks, optimizing power and deployment for improved security and efficiency.

Contribution

It proposes a novel BCD-PSO scheme for optimizing RIS phase shifts to enable concurrent monitoring and jamming with minimal power in industrial settings.

Findings

BCD-PSO improves monitoring and jamming performance.

Optimized RIS deployment enhances resource utilization.

Simulation shows increased robustness and efficiency.

Abstract

In this paper, we study reconfigurable intelligent surface (RIS)-assisted simultaneous legitimate monitoring and jamming techniques for industrial environments, so that egitimate monitor (LM) and legitimate jammers (LJs) can sustainably monitor and interfere with suspicious communications with minimum transmission power. Specifically, we propose a Block Coordinate Descent-Particle Swarm Optimization (BCD-PSO) based scheme to optimize RIS's phase shift matrix and minimize LJs' transmission power, while successfully jamming and stably monitoring unauthorized communications. Simulation results demonstrate that the proposed BCD-PSO can enhance the performances in terms of monitoring, resource utilization and robustness. Moreover, we effectively exam the best deployment of RIS towards diverse objectives.