Optimized Design of Joint Mirror Array and Liquid Crystal-Based RIS-Aided VLC Systems

Most studies of reflecting intelligent surfaces (RISs)-assisted visible light communication (VLC) systems have focused on the integration RISs in channel between transmitter-receiver pair to combat line-of-sight (LoS) blockage issue and enhance corresponding achievable data rate. Some recent efforts investigated liquid crystal (LC)-RIS VLC receiver also improve To jointly benefit from previously mentioned appealing capabilities RIS technology both receiver, this work, we propose a novel indoor system that is assisted by mirror array-based an LC-based aided-VLC receiver. illustrate performance proposed system, rate maximization problem formulated, solved, evaluated for system. This optimizes roll yaw angles as well refractive index Moreover, considers practical assumptions, such presence non-users blockers LoS path transmitter user's random device orientation (i.e., self-blockage). Due non-convexity formulated multi-variate optimization problem, low-complexity algorithm utilized get global optimal solution. A multi-user scenario scheme presented. Furthermore, energy efficiency investigated. Simulation results are provided, confirming yields noteworthy improvement performances compared several baseline schemes.