A Vehicle Mounted Relay Assisted Covert Communication Location Optimization Method in IOV
Kun Chen, Wen Tian, Shuang Zhang, Huaifeng Shi, Yanan Gao, Wanxin Ma · IEICE Transactions on Communications · 2025
Covert communication, as an effective security method, had been widely introduced to improve the security of communication against fixed detection device in internet of vechicles (IOV). However, the application of mobile monitoring devices poses a huge threat to traditional covert communication. To solve this problem, we propose a vehicle mounted relay assisted covert communication location optimization method (VMRCCLOM). Specifically, the method first obtains detector's optimal total error probability and detection threshold by pushing the monotonicity of the function, and then the expression of transmission rate is obtained according to the probability of transmission interruption. Finally, based on the objective function of maximizing the transmission rate, the optimal relay location is designed by geometric method. Experiment results indicate that our VMRCCLOM can effectively improve the transfer rate and concealment probability of communication compared with existing work.