This paper presents the design, implementation and evaluation of Picasso, a novel radio
design that allows simultaneous transmission and reception on separate and arbitrary …

Cognitive radio (CR) networks have been proposed as a solution to both spectrum
inefficiency and spectrum scarcity problems. However, they face several challenges based …

This article provides a comprehensive survey of cognitive radio technology, focusing on its
application to dynamic spectrum access, especially from the perspective of realizing …

This paper considers a spectrum sharing based cognitive radio (CR) communication system,
which consists of a secondary user (SU) having multiple transmit antennas and a single …

Smart grid is widely considered to be the next generation of power grid, where power
generation, management, transmission, distribution, and utilization are fully upgraded to …

In the present contribution, we propose a novel opportunistic ambient backscatter
communication (ABC) framework for radio frequency (RF)-powered cognitive radio (CR) …

In this paper, dynamic spectrum access (DSA) in multi-channel cognitive radio networks
(CRNs) is studied. The two fundamental issues in DSA, spectrum sensing and spectrum …

Cognitive radio has attracted an increasing amount of interest over the past few years as an
effective method of alleviating the spectrum scarcity problem in wireless communications …

With the advent of the fifth generation of wireless standards and an increasing demand for
higher throughput, methods to improve spectral efficiency of wireless systems have become …

Spectrum sensing, which aims at detecting spectrum holes, is the precondition for the
implementation of cognitive radio (CR). Collaborative spectrum sensing among the cognitive …