STVC: Secure Traffic-light to Vehicle Communication

We propose a STVC (Secure Traffic-light to Vehicle Communication) for wireless communication between the traffic-light and vehicles. As the traffic-light periodically broadcasts its scheduling information over the wireless medium to the vehicles, the driver takes advantage of cooperative intersection collision avoidance, echo-driving and idle-stop services. In this work, we performed an idle-stop service that a vehicle stops and restarts the engine automatically for the traffic signals so that it saves fuel consumption and has effect on reducing CO₂ gas with the help of the STVC. To the best of our knowledge, the STVC is the first attempt to be practically applicable in a large-scale complex real-road network, located in Gangnam-gu, Seoul, Korea. In this paper, we tackle the several obstacles such as LOS (Line of Sight) problem, security, and radio frequency interference, which the STVC faces in real-road network, and provide the practical solution.