The Internet of things (IoT) is one of the main use cases of ultra massive machine type
communications (umMTC), which aims to connect large-scale short packet sensors or …

In this article, we investigate the design of the trajectory of an unmanned aerial vehicle
(UAV) and the transmit power of ground users to improve covert communications against a …

In this paper, we propose to utilize an intelligent reflecting surface (IRS) as a promising
technology to enhance the coverage and physical layer security of non-orthogonal multiple …

In this paper, a framework for the performance evaluation of uplink Non-Orthogonal Multiple
Access (NOMA) Backscattering Communication (BackCom) systems is proposed. A two …

Non-orthogonal multiple access (NOMA) has been considered as a promising solution to
provide spectrally efficient communications in the 5th generation and beyond networks …

This paper considers covert communication scenarios in satellite uplink. First we discuss the
basic principles and key features of three typical non-orthogonal multiple access (NOMA) …

The integration of intelligent reflecting surface (IRS) and multiple access provides a
promising solution to improved coverage and massive connections at low cost. However …

Non-orthogonal multiple access (NOMA) has emerged as an enabling solution for 5th
generation and beyond networks, but the often-neglected issues due to successive …

Non-orthogonal multiple access (NOMA) and ambient backscatter communication have
been envisioned as two promising technologies for the Internet-of-things due to their high …

A key feature of the non-orthogonal multiple access (NOMA) technique is that users with
better channel conditions have prior information about the messages of other users. The …