Abstract
In this paper, we deal with the eavesdropping issue in Wireless Access in Vehicular Environments- (WAVE-) based vehicular networks. A proactive flexible interval intermittent jamming (FIJ) approach is proposed which predicts the time length T of the physical layer packet to be transmitted by the legitimate user and designs flexible jamming interval (JI) and jamming-free interval (JF) based on the predicted T . Our design prevents eavesdroppers from overhearing the information with low energy cost since the jamming signal is transmitted only within JI. Numerical analysis and simulation study validate the performance of our proactive FIJ, in terms of jamming energy cost and overhearing defense, by comparing with the existing intermittent jamming (IJ) and FIJ.
Highlights
A WAVE- (Wireless Access in Vehicular Environments-) based vehicular network has been considered a promising way to improve safety and driving experience with vehicular level information exchange playing the most critical role
For a specific physical packet with time length T, the time length of the “Application Data,” which is generated in the application layer and contains the core information to be transmitted, is obtained (ii) An flexible interval intermittent jamming (FIJ) scheme is proposed where the length of jamming interval (JI) depends on the value of T such that the friendly jammer disables the eavesdropper with less energy cost (iii) Support vector regression (SVR) is applied to learn the characteristics of the time length of N historical physical packets and predict the time length of the future physical packet
It can be found that proactive FIJ based on SVR can lead to similar package error rate (PER) compared with the FIJ scheme derived from known time length
Summary
A WAVE- (Wireless Access in Vehicular Environments-) based vehicular network has been considered a promising way to improve safety and driving experience with vehicular level information exchange playing the most critical role. If the jammer obtains the value of T after the packet has been generated and decides the length of JI and JF nonnegligible time delay will be introduced before starting the jamming process This way, the jamming signal may not be able to be transmitted synchronously with the physical packet leading to degraded jamming performance. For a specific physical packet with time length T, the time length of the “Application Data,” which is generated in the application layer and contains the core information to be transmitted, is obtained (ii) An FIJ scheme is proposed where the length of JI depends on the value of T such that the friendly jammer disables the eavesdropper with less energy cost (iii) Support vector regression (SVR) is applied to learn the characteristics of the time length of N historical physical packets and predict the time length of the future physical packet.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
