Vehicle-to-vehicle connectivity analysis for vehicular ad-hoc networks

Vehicle-to-vehicle (V2V) communication in Vehicular Ad hoc Networks (VANETs) is of importance in the Intelligent Transportation System (ITS) in which vehicles enlisted with wireless devices can communicate with each other. Many applications can save peoples life or time on traffic such as accident alerts or congestion prediction, etc. However, network communication over VANETs is inheritedly unstable because of the high mobility of vehicles. In this paper, we analyze vehicle to vehicle wireless connectivity by using mathematic models. We consider the effect of headway distance, acceleration, association time (i.e. connection setup time), relative speed of vehicles, transmission range and message/data size in short range based V2V communications in the models. The numerical results in simulations validate the analysis.

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