safety improvement in millimeter wave vehicle-to-infrastructure communications

message transition with the lowest possible delay, is a critical need for safety applications of vehicle communications. but how we can reduce such delays? in this paper, we investigate the use of millimeter waves (mm-waves) due to their wide bandwidth and higher data rates, compared to dedicated short range communication (dsrc) technology for vehicle-to-infrastructure (v2i) communications. we use a 3d ray tracing technique over two different actual environments: a high dense urban, and a low dense sub-urban area. simulation results reveal that mm-waves have lower delay spread compared to the current dsrc technology.