An Trace Based Vehicular Mobility Model for Simulation of Vehicular Delay Tolerant Networks

The vehicular mobility models will seriously affect the simulation results of the key technologies for Vehicular Delay Tolerant Networks. Most of the existing vehicular mobility models are synthetic mobility models which cannot properly reflect the real environment. This paper proposed vehicular mobility model based on real traces, which has considered the road topology, the vehicle speed control rules, the vehicle initial location, the turning probability at intersection and so on. On this basis, it further analyzed the closeness of simulation of the actual vehicle behavior from the model, the statistics characteristic of vehicular trace and the network connection characteristic. The simulation results show that the proposed model can factually approximate the actual behavior of vehicle in real environment.