A Kind of Event Trust Model for VANET Based on Statistical Method

The paper proposed a trust model based on mathematical statistic method to enhance the safety of a VANET. By applying the statistical principles such as significance test, hypothesis test and confidence interval, the model can help the reputation management center to calculate trust values of all vehicle nodes, can help vehicle nodes to judge whether an event message can be trust or not. The simulation experiment results show that the model can effectively identify false event messages, improve the accuracy of data and enhance the information security of a VANET.