This paper provides an overview of cognitive radio (CR) networks, with focus on the recent
advances in resource allocation techniques and the CR networks architectural design. The …

We propose a new framework of joint spectrum allocation and power control to utilize open
spectrum bands in cognitive radio networks (CRNs) by considering both interference …

In this letter, we present a novel method of solving the Generalized Waterfilling problem
(GWFP) using equivalence with a waterfilling problem (WFP) which has a closed form …

The proliferation of wireless technologies and services has intensified the demand for the
radio spectrum. However, the currently existing fixed spectrum assignment policy leads to an …

This book discusses in-depth the concept of distributed artificial intelligence (DAI) and its
application to cognitive communications In this book, the authors present an overview of …

The computational complexity of resource allocation processes, in cognitive radio networks
(CRNs), is a major issue to be managed. Furthermore, the complicated solution of the …

The problem of subcarrier allocation (SA) and power allocation (PA) for both the downlink
and uplink of cognitive radio networks (CRNs) is studied. Two joint SA and PA schemes …

In this letter, a power-control scheme for maximum sum-rate is proposed for the fading
multiple access channels by considering the presence of primary users. Both the average …

An efficient fairness-aware uplink resource allocation algorithm in orthogonal frequency-
division multiplexing-based cognitive radio systems is presented. The proposed resource …

Spectrum sensing is not always perfect in practical cognitive radio networks. In this paper,
two kinds of sensing errors are considered into the channel allocation scheme. Our work …