A Defense System: Jamming Detection and Mitigation for Safety Applications in Vehicular Networks

The periodically exchanged basic safety messages (BSM) in vehicular networks have become a new attack target for jamming attacks that are easy to conduct in a vehicular environment. The detection and mitigation must be cordially integrated to provide acceptable communication latency under attacking conditions. This paper considers a comprehensive defense system detecting and mitigating jamming attacks. We analyze the impact of the jamming attack on BSMs on our initially proposed random channel surfing scheme coupling with a detection method. The detection method can hardly provide 100% accuracy, and this consequently delays the reaction. We study the defense system by a mathematical model which is validated by simulations in NS-3. The obtained results depict how the performance of the channel surfing scheme depends on its preinstalled detection method