Information security has always been a critical issue in wireless networks. Apart from other
secure techniques, covert communication emerges as a potential solution to security for …

Physical layer covert communication is a crucial secure communication technology that
enables a transmitter to convey information covertly to a recipient without being detected by …

In this paper, we investigate the feasibility and performance of the covert communication
with a spectrum sharing relay in the finite blocklength regime. Specifically, the relay …

In this article, we investigate the design of the trajectory of an unmanned aerial vehicle
(UAV) and the transmit power of ground users to improve covert communications against a …

The cell-free (CF) network architecture has promising applications in Internet of Things (IoT)
networks due to its dynamic and adaptive nature in resource allocation. However, due to the …

In this paper, the covert communication is considered with a full-duplex (FD) receiver under
covertness and reliability constraints in the finite blocklength regime. Conventional covert …

In this paper, we study the covert performance of the downlink low earth orbit (LEO) satellite
communication, where the unmanned aerial vehicle (UAV) is employed as a cooperative …

Covert communication enforces the transmitted signal to be indistinguishable from other
signals under wireless environment, making it difficult for an eavesdropper to detect and …