Towards a trusted vehicular routing in VANET

Abstract

Vehicular ad-hoc network (VANET) offers a large number of new potential applications. Drivers may benefit from collision warning, road sign alarms and in-place traffic view, and others. This network tends to operate without any infra-structure or legacy client and server communication. However, due to some special properties such as high mobility, network partitioning, and constrained topology, situations in which the network topology changes dynamically are tempting to attackers for various reasons, e.g. faked location and malicious information. In this paper, by using trusted computing technology we propose a security mechanism called TGPSR to provide a holistic protection for geographic information routing protocol (GPSR) which has great applied potential in VANET. TGPSR is expected to effectively prevent malicious behaviors especially for tampering with routing protocol or neighbor location table (NLT). Extensive simulations confirm that TGPSR is superior to GPSR in defending against malicious behaviors and without compromising performance through comparing many metrics such as throughput, packet loss rate, packet delivery rate, jitter, average delay, routing efficiency, and simulation time. © 2012 Springer Science+Business Media.