The next wave of wireless technologies is proliferating in connecting things among
themselves as well as to humans. In the era of the Internet of Things (IoT), billions of …

Non-orthogonal multiple access (NOMA) has been widely recognized as a promising way to
scale up the number of users, enhance the spectral efficiency, and improve the user-fairness …

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 …

With the advent of 5G and the need for energy-efficient massively connected wireless
networks, in this work, we consider an energy harvesting (EH) based multi-relay downlink …

Multi-access mobile edge computing (MEC) allows each user to offload partial task bits to
multiple MEC servers via multi-access radio transmission, enabling the collaboration of …

As a promising technique, power beacon provides ability of wireless energy transfer to
relaying devices in Internet of Things (IoT) to serve far devices with respect to low latency …

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 …

In this paper, we investigate the performance of a secondary network in a cognitive radio
network employing a non-orthogonal multiple access (NOMA) scheme to form a CR-NOMA …

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 work, we investigate the relationship between the reliability and security of a typical
two-user downlink non-orthogonal multiple access (NOMA) communication system. The …