  In this work, we showcase the potential benefit of employing optical
intelligent reflecting surfaces (O-IRS) for improving safety message
dissemination for vehicular visible light communication (V-VLC) systems
particularly at the road intersections. Buildings, roadside structures,
signboards, and other impediments commonly hinder line-of-sight (LoS)
communication between vehicles at urban crossroads scenarios. We propose using
O-IRS at road intersection to improve the communication link's reliability. We
compare the performance of proposed scheme with baseline scenarios such as
optical relay and non line-of-sight (NLOS) road reflection (NRR) aided
vehicle-to-vehicle (V2V) communication. From obtained results, it has been
shown that O-IRS offers considerable performance enhancement as compared to the
baseline scenarios. In particular, O-IRS can achieve longer communication range
as compared to the optical relay aided V-VLC systems while ensuring desired
quality-of-service (QoS).
