ABSTRACT
Recently, the wireless networks are managed through utilizing a fixed spectrum policy, whereby licenses were assigned officially to provide the network services for large geographical areas. In wireless access in vehicular environments (WAVEs), the communication methods deployed based on two standards: vehicle-to-vehicle communication (V2V) and vehicle-to-roadside (V2R) base station (BS) or access point (AP) communication. For instance, in the United States and Europe, the bands at 5.85-5.925 GHz of the wireless spectrum were assigned for both V2V and V2R. However, the transmitting process was operated based on the standards of IEEE 802.11p and IEEE 1609.4 [1,2]. In the meanwhile, in realistic urban environments, there are many applications functioning by vehicles, such as safety applications in additional to traffic monitoring application systems.
