Institute of Electrical & Electronic Engineers
In this paper the authors propose a trust model based on a Markov chain in order to formalize the trust metric variation and its stability in the context of Vehicular Ad hoc NETworks (VANETs). The proposed model takes into account not only the dynamic trust metric variation according to the vehicles behaviors, but also the constraints related to the monitoring process. In their model each vehicle can act as monitor and update the trust metric of its neighbors according to their behavior in the network. In addition, their model can be customized through different parameters like the trust interval and the number of transitions needed to reach the highest trust level. This flexibility enables to adapt the model according to the application context.