Cognitive radio is an exciting emerging technology that has the potential of dealing with the
stringent requirement and scarcity of the radio spectrum. Such revolutionary and …

Cognitive radio is a promising technology that enables an unlicensed user (also known as a
cognitive user) to identify the white space of a licensed spectrum band (called a spectrum …

In cognitive networks, cognitive (unlicensed) users need to continuously monitor spectrum to
detect the presence of primary (licensed) users. In part I, we have illustrated the benefits of …

With the rapid growth of wireless applications and services in the recent decade, spectrum
resources are facing huge demands. The radio spectrum is a limited resource and is …

Cognitive radio systems necessitate the incorporation of cooperative spectrum sensing
among cognitive users to increase the reliability of detection. We have found that …

Cooperative spectrum sensing is attracting more attention in cognitive radio networks. This
paper proposes a fully distributed consensus-based cooperative spectrum sensing scheme …

Cognitive radio technology has been proposed to improve spectrum efficiency by having the
cognitive radios act as secondary users to opportunistically access under-utilized frequency …

Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the
CRs act as secondary users that opportunistically access free frequency bands. Due to the …

In cognitive networks, cognitive (unlicensed) users need to continuously monitor spectrum to
detect the presence of primary (licensed) users. In this paper, we illustrate the benefits of …

The sensing‐throughput trade‐off and the sensing‐energy trade‐off for cooperative
spectrum sensing have been the subject of recent research. Two important, but often …