Cognitive radio (CR), as an emerging technology to improve the utilization of radio
spectrum, the fundamental of CR technology is spectrum sensing, due to the detection …

Spectrum sensing describes, whether the spectrum is occupied or empty. Main objective of
cognitive radio network (CRN) is to increase probability of detection (Pd) and reduce …

There are abundant research results related to cognitive radio systems (CR systems), but
using queueing models to portray CR systems is a new research trend. In this paper, a …

The growing subscriber demands in various subscribers have been taken into account in the
deployment of fifth generation (5G) radio. Multicarrier Waveforms (MCW) will play an …

Cognitive radio networks (CRNs) make it possible for opportunistic spectrum access by
dynamically identifying and utilising underutilised frequency bands. In this research, we …

“Spectrum sensing is a crucial component in Cognitive Radio Networks (CRN)”. CRN
systems' capacity to reliably and quickly sense the principal signal is a vital requirement …

Increased use of wireless technologies and in turn more utilization of available spectrum is
subsequently leading to the increasing demand for wireless spectrum. This research work …

Due to the rapid development of unmanned aerial vehicles (UAVs) communication
technology, UAVs are gradually competing with primary users (PUs) for spectrum resources …

Cognitive Radio (CR) is designed to overcome the issue of spectrum scarcity. The CR
function is based on Software Defined Radio (SDR), which identifies the idle spectrum from …