The ambitious high data-rate applications in the envisioned future beyond fifth-generation
(B5G) wireless networks require new solutions, including the advent of more advanced …

The aim of this systematic review was to identify the correlations between spectrum sensing,
clustering algorithms, and energy-harvesting technology for cognitive-radio-based internet …

In this paper, we study radio frequency (RF)-powered underlay cognitive radio networks
(CRNs) with power-domain non-orthogonal multiple access (NOMA). In these networks, by …

The integration of cognitive radio (CR) technology and non-orthogonal multiple access
(NOMA) techniques, referred to as CR-based NOMA systems, has been recently configured …

With the rapid growth of vehicles, the vehicular networks meet main challenges such as
dynamic, heterogeneous, and large scaled. In addition, the cellular-based vehicular …

Energy supplies, spectrum resources, and transmission overheads of wireless nodes are the
bottlenecks in decentralized networks (eg, device-to-device communication networks). In …

Energy Efficiency (EE) is a significant problem for Cognitive Radio (CR) network. Recently,
more interest has focused on EE optimization problem in wireless-powered communication …

Future millimeter-wave systems, 5G cellular or WiFi, must rely on highly directional links to
overcome severe pathloss in these frequency bands. Establishing such links requires the …

Cognitive Radio (CR) provides a promising solution to the spectrum scarcity problem in
dense wireless networks, where the sensing ability of cognitive users helps acquire …

We study a hybrid satellite-terrestrial cognitive network (HSTCN) relying on non-orthogonal
multiple access (NOMA) interconnecting a satellite and multiple terrestrial nodes. In this …