Relay communication, in which the relay forwards the signal received by a source to a
destination, has a massive consideration in research, due to its ability to expand the …

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) …

Since radio frequency (RF) signals can be used for both information transmission and
energy harvesting, RF-based energy harvesting is capable of integrating with other existing …

The wireless communication system has been facing a technological revolution due to the
shift through various generations. To fulfil the 5G and beyond 5G (B5G) networks, we need …

Energy harvesting (EH) is a promising technology for enhancing a network's quality of
service (QoS). EH-based communication systems are studied by tackling the challenges of …

Recently, the conception of Internet of Things (IoT) has been widely applied in many areas,
and brings great benefits to our daily life. According to Cisco annual internet report, IoT …

In a conventional cognitive radio (CR) network, only when the primary user's (PU) frequency
bands are sensed to be free, secondary users (SUs) can utilize these frequency band …

Cognitive radio (CR) enables dynamic spectrum access and offers a promising solution to
the impending spectrum scarcity problem. It senses the licensed spectrum and identifies …