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 …

Cognitive radio and non-orthogonal multiple access are promising for alleviating the severe
spectral scarcity problem encountered by the next generation wireless communication …

Wireless power transfer (WPT) is an effective way to prolong the lifetime of the energy-
constraint networks. In this paper, we investigate a wireless powered cooperative non …

The combination of cognitive radio and non-orthogonal multiple access (NOMA) has
tremendous potential to achieve high spectral efficiency in the IoT era. In this paper, we …

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) …

This paper studies a multiple-input single-output non-orthogonal multiple access cognitive
radio network relying on simultaneous wireless information and power transfer. A realistic …

Recently, wireless powered cooperative cognitive radio networks (CRNs), which combine
the technologies of radio frequency (RF) energy harvesting and CR, have drawn great …

To improve the radio spectral efficiency for 5G and beyond, novel radio access techniques
need to be designed to accommodate unprecedented number of connected devices, and …

An energy harvesting (EH) enabled network is capable of delivering energy to users, who
are located sufficiently close to the base stations. However, wireless energy delivery …

Non-orthogonal multiple access (NOMA)-based cognitive wireless networks can improve the
spectral efficiency to utilize the vacant spectrum resource and exploit the power domain …