With the gradual promotion of the fifth generation (5G) mobile communication and Internet of
Things (IoT) applications, wireless communication transmission will be more vulnerable to …

This letter considers covert communication in downlink NOMA systems, where a public
action (communication from Alice to the NOMA-weak user U1) is used to provide a cover for …

It is challenging to covert communication under channel distribution information (CDI)
uncertainty caused by limited feedback and rapid-changing channels. This letter …

In this letter, we investigate covert communications in uplink non-orthogonal multiple access
(NOMA) systems, where a covert user tries to transmit private information to a legitimate …

In this paper, we investigate covert communication in an intelligent reflecting surface (IRS)-
assisted non-orthogonal multiple access (NOMA) system, where a legitimate transmitter …

In this letter, we investigate an active reconfigurable intelligent surface (RIS) and non-
orthogonal multiple access (NOMA)-aided covert communication system with hardware …

This letter proposes a joint covert and secure transmission scheme in the non-orthogonal
multiple access (NOMA) networks against internal eavesdropping and external monitoring …

This paper investigates the covert communication of cooperative non-orthogonal multiple
access (NOMA) systems, where the near user serves as a decode-and-forward (DF) relay …

This paper investigates covert communication in simultaneously transmitting and reflecting
reconfigurable intelligent surface (STAR-RIS) assisted non-orthogonal multiple access …

Abstract As the Internet of Things (IoT) becomes increasingly popular, the amount of
information transmitted through the IoT network has increased significantly. Therefore, the …