Аннотация
This paper introduces a challenge concerning physical layer security in visible light communication (VLC) systems. Specifically, it addresses the issue within a closed-off room scenario by employing intelligent reflective surfaces (IRS) to safeguard data transmission. The proposed approach focuses on dynamically altering the communication channel, making eavesdropping attempts ineffective by rapid changes in the multipath channel profile. The efficacy of this strategy is demonstrated through simulations, highlighting its potential for future advancements in the system.