A cognitive radio network (CRN) is formed by either allowing the secondary users (SUs) in a
secondary communication network (SCN) to opportunistically operate in the frequency …

This paper considers spectrum sharing for wireless communication between a cognitive
radio (CR) link and a primary radio (PR) link. It is assumed that the CR protects the PR …

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 …

This paper studies the outage probability performance of decode-and-forward (DF) cognitive
dual-hop systems for Nakagami-m fading channels, with consideration of an interference …

This paper studies the information-theoretic limits of a secondary or cognitive radio (CR)
network under spectrum sharing with an existing primary radio network. In particular, the …

Cognitive radio has attracted an increasing amount of interest over the past few years as an
effective method of alleviating the spectrum scarcity problem in wireless communications …

Spectrum sharing has attracted a lot of attention in cognitive radio recently as an effective
method of alleviating the spectrum scarcity problem by allowing unlicensed users to coexist …

In this paper, we investigate the capacity gains offered by cognitive radio in a spectrum-
sharing system where the transmit power and rate of the secondary user are adjusted based …

In this paper, the ergodic channel capacity for a secondary user is investigated using soft
sensing information about primary user activity in a shared channel under joint peak transmit …

Multicarrier waveforms have been commonly recognized as strong candidates for cognitive
radio. In this paper, we study the dynamics of spectrum sensing and spectrum allocation …