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 …

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 …

In this paper, we investigate the throughput performance of covert communication over a
channel with incumbent channel activities. Unlike existing work, we explicitly consider the …

Covert communication hides the transmission of a message from a watchful adversary, while
ensuring reliable information decoding at the receiver, providing enhanced security in …

Covert wireless communications aim to hide the existence of transmission behavior from
watchful adversaries to enhance security. In this paper, we propose a spectrum mask based …

In this paper, we explore covert communication in a heterogeneous network where a
transmitter sends a confidential message to a receiver by utilizing two different radio …

Covert communications can hide the very existence of wireless transmissions and thus are
able to address privacy issues in numerous applications of the emerging Internet of Things …

We investigate covert wireless communication in a multi-antenna relay network, where the
relay transmits its own covert message to the destination when assisting the source's …

Covert communications enable a transmitter to send information reliably in the presence of
an adversary, who looks to detect whether the transmission took place or not. We consider …

Device-to-device (D2D) underlaid cellular networks are regarded as an emerging network
structure in the 5G systems. We study the covert communication of such networks consisting …