Covert communication aims to hide the existence of the transmissions to guarantee the
security in wireless communications. In this letter, channel uncertainty is exploited to achieve …

In this letter, we investigate covert communication in relay networks with relay selection. We
consider the scenario that while forwarding the source's message, the selected relay …

Covert wireless communication aims to hide the very existence of wireless transmissions in
order to guarantee a strong security in wireless networks. In this paper, we examine the …

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

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 …

Covert communication conceals transmission of messages between Alice and Bob from an
adversary, Willie, who tries to determine if a transmission took place or not. While covert …

Covert communication can hide the information transmission process from the warden to
prevent adversarial eavesdropping. However, it becomes challenging when the location of …

Internet of Things (IoT) systems are of paramount importance to provide ubiquitous wireless
connectivity for smart cities. However, such systems are facing security challenges due to …

Covert communications hide the transmission of a message from a watchful adversary while
ensuring a certain decoding performance at the receiver. In this paper, a wireless …