Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless
systems. This paper surveys the fundamental capacity limits and associated transmission …

Cognitive Radio Communications and Networks gives comprehensive and balanced
coverage of the principles of cognitive radio communications, cognitive networks, and …

We investigate the dynamic spectrum sharing problem among primary and secondary users
in a cognitive radio network. We consider the scenario where primary users exhibit on-off …

In recent years, the development of intelligent, adaptive wireless devices called cognitive
radios, together with the introduction of secondary spectrum licensing, has led to a new …

The concept of cognitive radio (CR) has recently received great attention from the research
community as a promising paradigm to achieve efficient use of the frequency resource by …

Hierarchical dynamic spectrum access (DSA) has received the most attention in recent years
as the solution for better spectrum utilization. In this paper, on the other hand, we develop a …

We consider a cognitive radio system where the secondary transmitter varies its transmit
power based on the information available from the spectrum sensor. The operation of the …

Intelligent reflecting surface (IRS) is a promising solution for enabling the control of wireless
environments. Most of existing works consider that an IRS consists of a large number of …

In this paper, we propose a novel class of Nash problems for cognitive radio (CR) networks,
modeled as Gaussian frequency-selective interference channels, wherein each secondary …

In cognitive radio networks, power control is necessary to not only decrease the interference
among the secondary users (SUs), but also avoid negative impact to the primary users …