Cognitive radio has been proposed as a promising technology to resolve the spectrum
scarcity problem by dynamically exploiting underutilized spectrum bands. Cognitive radio …

Cognitive radio sensor network (CRSN) has emerged as a promising solution to address the
spectrum scarcity problem in traditional sensor networks, by enabling sensor nodes to …

Cooperative spectrum sensing is envisaged to increase reliability in cognitive radio
networks. Several users cooperate to detect the availability of a wireless channel. In this …

Spectrum sensing is a prominent functionality to enable dynamic spectrum access (DSA) in
cognitive radio (CR) networks. It provides protection to primary users (PUs) from interference …

User cooperation for spectrum sensing in cognitive radios has been proposed in order to
improve the overall performance by mitigating multi-path fading and shadowing experienced …

In this paper, we discuss the joint improvement of the energy efficiency (EE) and the
spectrum efficiency (SE) in OFDM-based cognitive radio (CR) networks. A multi-objective …

Limited spectrum resources and the dramatic growth of high data rate applications have
motivated opportunistic spectrum access exploiting the promising concept of cognitive …

Abstract The Pietra–Ricci index detector (PRIDe) has been recently proposed as one of the
simplest techniques for data-fusion cooperative spectrum sensing (CSS), attaining …

Cognitive Radio (CR) is projected to be the next disruptive radio communications and
networking technology and has already attracted considerable interest from researchers …

Cognitive radio essentially depends on optimum spectrum sensing for primary user
detection. Noise uncertainty in spectrum sensing makes the detection process with fixed …