This paper investigates the throughput of a non-orthogonal multiple access (NOMA)-based
cognitive radio (CR) system with multiple unmanned aerial vehicle (UAV)-assisted relays …

Due to the shortcomings of the standard bat algorithm (BA) for multi-parameter optimization,
an improved bat algorithm is proposed. The benchmark function test shows that the …

The security energy efficiency (SEE) is investigated in a two way-full duplex (TW-FD) relay
assisted cognitive radio non-orthogonal multiple access (CR-NOMA) networks. In order to …

The performance of an unmanned aerial vehicle (UAV) assisted cooperative cognitive radio
(CR) network is studied in this paper. The study is carried out for line-of-sight (LOS) links …

Combining energy harvesting with cognitive radio and nonorthogonal multiple access
(NOMA) techniques will be a notable candidate for improving both energy and spectral …

In this paper, we propose a security-aware spectrum sharing scheme for wireless-powered
cognitive radio networks (CRNs) with non-orthogonal multiple access (NOMA). In this …

In this paper, we analyze the performance of an energy harvesting (EH)-assisted overlay
cognitive non-orthogonal multiple access (NOMA) system. The underlying system consists of …

This paper considers a multiple-input multiple-output (MIMO) non-orthogonal multiple
access (NOMA) cognitive radio (CR) system with an unmanned aerial vehicle relay (UR). In …

In this paper, we propose a spectrum-sharing protocol for a cooperative cognitive radio
network based on non-orthogonal multiple access technology, where the base station (BS) …

Combination of unmanned aerial vehicle (UAV) and non-orthogonal multiple access
(NOMA) is deemed as an promising solution to achieving massive connectivity in future …