Due to the under-utilization problem of the allocated radio spectrum, cognitive radio (CR)
communications have recently emerged as a reliable and effective solution. Among various …

Cognitive radio (CR) is the enabling technology for supporting dynamic spectrum access:
the policy that addresses the spectrum scarcity problem that is encountered in many …

Cognitive radio is widely expected to be the next Big Bang in wireless communications.
Spectrum sensing, that is, detecting the presence of the primary users in a licensed …

The article analyzes the problem of energy efficient techniques in cooperative spectrum
sensing (CSS). Although it was proven that single-device sensing is not sufficient for reliable …

Energy-efficient design has become increasingly important to battery-powered wireless
devices. In this paper, we focus on the energy efficiency of a cognitive radio network, in …

Abstract The Cognitive Radio Network (CRN) in 5G heterogeneous network has trade-off
between energy efficiency and spectrum sensing efficiency. Energy Efficiency is important …

Cognitive radio has been widely considered as one of the prominent solutions to tackle the
spectrum scarcity. While the majority of existing research has focused on single-band …

Cognitive radio is an emerging technology that aims for efficient spectrum usage by allowing
unlicensed (secondary) users to access licensed frequency bands under the condition of …

Cognitive radio (CR) is one of the most disruptive techniques for enabling the next
generation wireless communication networks due to its potential in improving the spectral …

In cognitive radio networks, joint optimization of sensing time and cooperative fusion
scheme has been studied in the past in terms of sensing-throughput tradeoff design. In this …