Abstract
The security of wireless communication has been a paramount concern. In this letter, we propose a novel power-frequency joint allocation strategy (PFJAS), which can achieve high anti-jamming capability and covert performance for wireless communication systems. Specifically, a joint transmit power and frequency optimization problem is formulated to maximize the detection error probability at the warden, under constraints of transmission reliability and frequency selection uniformity. Then, the formulated optimization problem is solved by utilizing an alternating algorithm, where the power allocation and frequency selection (PAFS) algorithm based on Block Coordinate Descent (BCD) is iteratively performed until satisfying the performance requirement. Numerical results show our proposed PFJAS can achieve high anti-jamming capability and covert performance by exploiting the background noise in the environment.
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