Cooperative Anti-Jamming Relaying for Control Channel Jamming in Vehicular Networks

Radio Frequency (RF) jamming attacks represent a major threat to the availability of services in vehicular networks. In particular, if the control channel is under persistent jamming attacks, the vehicles within the jamming area cannot receive the safety related messages from the road side unit (RSU), which can possibly cause tremendous economic loss and claim human lives. In this paper, we propose to adopt the cooperative relaying technique to address this problem, whereby the neighbouring vehicles outside of the jamming area serve as the relay nodes to forward the received control channel signal to the victim vehicles through the jamming-free service channel. To investigate the performance of this cooperative relaying scheme, we analyse the outage probability at the victims under different jamming scenarios based on Poisson point process (PPP) model. Simulation results are provided to validate the theoretical results and show the effectiveness of the cooperative anti-jamming relay scheme under different conditions.