Signaling Game-Inspired Model for Ubiquitous Security in VANETs

In vehicular networks, wireless communications between smart vehicles can make a highway travel safer and faster. But hackers can use the system to cause accidents. To avoid this problem and guarantee ubiquitous public safety on the roads, vehicular networks need an appropriate security mechanism to protect them from various malicious attacks. In this paper, we present an intrusion detection system available to detect internal malicious nodes. When an accident appears on the road, the vehicles must have information about this. But the existence of malicious nodes, this information will be deleted from the network. Because of this, we have adopted a mathematical model based on coalition and signaling game theory to design an Intrusion Detection Game (IDG) modeling the interaction between malicious nodes and the Coalition Head that equipped with Intrusion Detection System (CH-IDS) agent, and seek its Bayesian Nash Equilibrium (BNE) for the optimal detection strategy.