This paper considers an intelligent reflecting surface (IRS)-assisted covert communication
system, where an IRS is deployed for the covert transmission from a legitimate transmitter …

We consider the secure transmission of information over an ergodic fading channel in the
presence of an eavesdropper. Our eavesdropper can be viewed as the wireless counterpart …

We design new secure on-off transmission schemes in wiretap channels with outdated
channel state information (CSI). In our design, we consider not only the outdated CSI from …

We present a covert (low probability of detection) communication scheme that exploits the
node multiplicity and channel variations in wireless broadcast networks. The transmitter …

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 …

Despite its potential for reducing the detection probability at the warden, the effectiveness of
covert communication in practical situations is often hindered by harsh wireless signal …

Secrecy on the physical layer receives increased research interest. Especially in the
wireless communication scenarios, the interest in confidentiality of messages increases. In …

Backscatter communication system is the backbone of many low cost and low power
distributed wireless systems. This paper studies the physical layer security (PLS) …

This letter investigates the finite blocklength covert communications where transmitter Alice
randomly chooses channel use according to probability in the transmission block. To …

The classic wiretap channel (WTC) problem is concerned with a transmitter (Alice) that
wants to send a message W to the intended receiver (Bob) while keeping it secret from a …