This paper investigates the performance of a new framework for low-outage downlink non-
orthogonal multiple access (NOMA) using a coordinated direct and relay transmission …

High spectral and energy efficiencies are vital for the implementation of smart cities. To this
end, this article investigates the performance of an amplify-and-forward (AF) relay-aided …

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 …

In this paper, we demonstrate that despite the power constraints on all transmit nodes
caused by the interference temperature limit (ITL) imposed by the primary user, power …

Non-orthogonal multiple access (NOMA) has the potential to provide higher throughput than
conventional orthogonal multiple access (OMA), which has been considered as a key …

In this letter, an orbital angular momentum-based multiple-input multiple-output (OAM-
MIMO) multiplexing system is integrated with non-orthogonal multiple access (NOMA) to …

With the development of wireless communications and internet of things (IoT), non-
orthogonal multiple access (NOMA) has been considered as one of effective schemes to …

This study considers the outage and throughput performance of downlink in the secondary
network of cognitive radio assisted non-orthogonal multiple access (NOMA) systems. Both …

The key idea of non-orthogonal multiple access (NOMA) is to serve multiple users in the
same frequency band to improve the spectral efficiency. Whereas a security flaw emerges in …

In this article, we investigate max completion time optimization for Internet of Things (IoT) in
LEO satellite-terrestrial integrated networks (STINs), in which IoT devices use non …