  One of the main challenges facing optical wireless communication (OWC)
systems is service disconnection in high blockage probability scenarios where
users might lose the line of sight (LoS) connection with their corresponding
access points (APs). In this work, we study the deployment of passive
reflecting surfaces referred to as Intelligent Reflecting Surfaces (IRSs) in
indoor visible light communication (VLC) to boost users signal to noise ratio
(SNR) and ensure service continuity. We formulate an optimization problem to
allocate APs and the mirrors of IRSs to users such that the sum rate is
increased. The results show a 35% increase in the sum rate of the IRS-aided OWC
system compared to the sum rate achieved by only considering the LoS channel
components. The results also shows that the deployment of IRSs improves the sum
rate under LoS blockage.
