Intrusion Detection System for WSN-based Intelligent Transportation Systems

The application of Wireless Sensor Networks (WSNs) in Intelligent Transportation Systems (ITSs) has been the topic of extensive research in the last decade. Various aspects of WSNs have been addressed in the context of transportation networks. In particular, the different aspects of security (confidentiality, integrity, and availability) strongly enticed the research devoted to ITSs. However, those efforts concentrated on preventive techniques constituting a first line of defense (like cryptography and authentication), which are effective in inhibiting the diverse malicious attacks. Relatively, little attention has been paid for employing a second line of defense that can detect intrusive behavior after successfully penetrating the first one. The latter line of defense is known as the Intrusion Detection System (IDS). While mature in wired and many types of wireless networks, IDSs are envisaged to have more opportunities in WSNs. In this paper, we study the incorporation of IDSs in WSN-based ITSs. We distinguish the characteristics of ITSs that affect the design of effective security measures and propose a novel IDS based on the WITS architecture (proposed in [1]).