ORIS Allocation to Minimize the Outage Probability in a Multi-User VLC Scenario

Visible Light Communication (VLC) is a promising solution to address the growing demand for wireless data, leveraging the widespread use of light-emitting diodes (LEDs) as transmitters. However, its deployment is challenged by link blockages that cause connectivity outages. Optical reconfigurable intelligent surfaces (ORISs) have recently emerged as a solution to mitigate these disruptions. This work considers a multi-user VLC system and investigates the optimal association of ORISs to LEDs and users to minimize the outage probability while limiting the number of ORISs used. Numerical results from our proposed optimization algorithm demonstrate that using ORISs can reduce the outage probability by up to 85% compared to a no-ORIS scenario.