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 address the problem of joint covert communication and secure
transmission in untrusted relaying networks when multiple wardens exist in the network. We …

We consider a scenario in which K transmitters attempt to communicate covert messages
reliably to a legitimate receiver over a discrete memoryless multiple-access channel (MAC) …

Covert communication prevents legitimate transmission from being detected by a warden
while maintaining certain covert rate at the intended user. Prior works have considered the …

We analyze a two-receiver binary-input discrete memoryless broadcast channel, in which
the transmitter communicates a common message simultaneously to both receivers and a …

In a majority of research on covert communications, knowledge about channel state
information (CSI) of main channel and/or warden channel is assumed to be known or …

We study the covert communication over K-user-pair discrete memoryless interference
channels (DM-ICs) with a warden. It is assumed that the warden's channel output distribution …

We revisit the problem of entanglement-assisted covert communication over bosonic
channels and show that the benefits of entanglement can be achieved with fewer …

Wireless covert communication is the technology of hiding messages in wireless
communication data frames and signals for covert transmission, which belongs to the cross …

Wireless covert communication is an emerging communication technique that prevents
eavesdroppers. This paper presents a novel approach to wireless covert communication …