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 …

It has been predicted that by the year 2030, 5G and beyond 5G (B5G) networks are
expected to provide hundreds of trillions of gigabytes of data for various emerging …

The Internet-of-Things (IoT) has greatly facilitated our daily lives. Nevertheless, how to
achieve higher spectral efficiency, large-scale device access, and lower latency for the next …

In this study, the performance of a secondary network in cognitive radio (CR) is studied in
the context of vehicle-to-everything (V2X). The non-orthogonal multiple access (NOMA) is …

In conventional cognitive radio (CR), the users in secondary network (SN) can only access
the idle spectrum when users in primary network (PN) are absent. This novel strategy …

This paper considers the secrecy outage performance of a multiple-relay assisted non-
orthogonal multiple access (NOMA) network over Nakagami-m fading channels. Two time …

Spectrum bands are the backbone of wireless networks. Every user is allocated a fraction of
the spectrum from available fixed spectrum band. But, the fixed available spectrum band …

The key idea of non-orthogonal multiple access (NOMA) is to serve multiple users in the
same resource block to improve the spectral efficiency. Whereas due to the resource …

We investigate physical layer security of an uplink NOMA system consisting of one base
station, multiple users and one eavesdropper. During each uplink transmission, two users …

In this paper, we propose a novel beamforming design to enhance physical layer security of
a non-orthogonal multiple access (NOMA) system with the aid of artificial noise (AN). The …