Adaptive Real-Time Speed Limit Broadcasting for Autonomous Driving applications Using Visible Light Communication

Vehicular Visible Light Communication (VVLC) systems is considered a revolutionary solution to ensure safe autonomous driving. VVLC systems have been considered to provide vehicle to vehicle (V2V), vehicle-to-infrastructure (V2I) and vehicle to everything (V2X) communication. While V2V systems have been extensively studied, demonstrated, evaluated and tested in the literature, research work related to V2I and V2X is still limited. In this regard, this paper considers utilizing VVLC to design cheap speed limit broadcasting system that provides adaptive real-time speed limit information, unlike what is proposed in the literature. The proposed technique only modifies the currently employed electronic speed signals to smart adaptive speed signals via the use of the visible light communication link. Experimental results confirm the feasibility and effectiveness of the visible light link to convey speed limit information.