We consider a cognitive radio network with an energy-harvesting secondary transmitter to
improve both energy efficiency and spectral efficiency. The goal of this paper is to determine …

Widely regarded as one of the most promising emerging technologies for driving the future
development of wireless communications, cognitive radio has the potential to mitigate the …

We consider an energy-harvesting cognitive radio system where the secondary transmitter
harvests energy. This system operates under an energy causality constraint mandating that …

The successful deployment of dynamic spectrum access requires cognitive radio (CR) to
more accurately find the unoccupied portion of the spectrum. An accurate spectrum sensing …

It is inevitable for cognitive radio to find unutilized portion of the spectrum more accurately for
successful deployment of dynamic spectrum sensing. To achieve highly reliable spectrum …

The exponential increase in the number of the Internet of Things (IoT) necessitates dynamic
and shared spectrum access at the edge of network. In cognitive radio (CR)-based IoT …

An optimal detection method along with two reduced-complexity methods, modified energy
detection (MED) and equal gain detection (EGD), under low signal-to-noise ratio (SNR) …

Currently, use of geo-location databases is the preferred method for detecting TV white
spaces by white space devices in the United States of America. The approach protects TV …

Access to the television white space by white space devices comes with a major technical
challenge: white space devices can interfere with existing television signals. Two methods …

Space-time spectral white spaces in a cognitive radio environment are defined based on
multidimensional spatio-temporal spectral properties of radio waves received by a planar …