Research on a vehicle mobility model based on dynamic path planning for VANET

For the research on evaluation of routing protocols, a vehicle mobility model for vehicular ad-hoc networks (VANET) based on dynamic path planning was designed. A map module and a vehicle motion control module were designed for this model, and a Dijkstra-based dynamic path planning algorithm was put forward. By using the model, a vehicle node can obtain the real-time conditions of the nodes around it based on the real-time traffic conditions and the share of the real-time information among the vehicles on the road, and then an optimum path can be chosen by using the proposed dynamic path planning algorithm, thus an effective path selection scheme can be calculated. The experimental results indicate that the proposed model can make the vehicle nodes arrive at the destination faster and safer in various traffic circumstances compared with the traditional models including the Random turn and the Shortest path.