Temperature-Aware Phase-shift Design of LC-RIS for Secure Communication

TL;DR

This paper presents a temperature-aware algorithm for LC-RIS in secure communication, addressing temperature-induced phase-shift variations to enhance data security and performance.

Contribution

The paper introduces a novel temperature-adaptive phase-shift design for LC-RIS, improving secure communication by compensating for thermal effects.

Findings

Significant improvement in secure data rate with temperature-aware algorithm

Effective compensation for temperature-induced phase-shift variations

Enhanced security performance in LC-RIS based systems

Abstract

Liquid crystal (LC) technology enables low-power and cost-effective solutions for implementing the reconfigurable intelligent surface (RIS). However, the phase-shift response of LC-RISs is temperature-dependent, which, if unaddressed, can degrade the performance. This issue is particularly critical in applications such as secure communications, where variations in phase-shift response may lead to significant information leakage. In this paper, we consider secure communication through an LC-RIS and developed a temperature-aware algorithm adapting the RIS phase shifts to thermal conditions. Our simulation results demonstrate that the proposed algorithm significantly improves the secure data rate compared to scenarios where temperature variations are not accounted for.