Vehicular communication networks are expected to provide safety and comfort services to passengers and drivers. To support diverse set of services and applications, vehicular network is expected to used variety of wireless access technologies for Vehicle-to-Vehicle (V2V) and Vehicle-to-roadside (V2R) communications. V2R communication could introduce high delay as roadside communication unit relays the information from source vehicle to destinations vehicles. Thus, for time critical messages, V2R based communication is not suitable to notify drivers in a timely manner. V2V based communication in VANET is performed in a peer-to-peer basis and the intended vehicles could exchange their information directly using single hop or multi-hop communications. In this case, performance of VANET depends on connectivity among vehicles since reliable connectivity for single hop or multi-hop communication is very important to forward time-critical information. The connectivity in VANET is directly related to density of vehicles, relative speed of the vehicles, association time of wireless technology, and transmission range and frequency bands used by vehicles. In this chapter, we present cloud assisted cognitive radio enabled vehicular communications.