With the fast development in Internet and communication technologies,vehicles that often quickly move in cities or suburbs,have the strong ability of computation and communication.Then many researchers called vehicles as computers with four wheels or big phones in Internet of Vehicles(IOV).IOV is emerging as an important part of the smart city being proposed and With the fast development in Internet and communication technologies, vehicles that often move in cities or suburbs, have the strong ability of computation and communication. Many many called called vehicles with four wheels or big phones in Internet of Vehicles (IOV). IOV is emerging as an important part of the smart city being proposed and