This paper studies optimal bandwidth and power allocation in a cognitive radio network
where multiple secondary users (SUs) share the licensed spectrum of a primary user (PU) …

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 …

We consider a cognitive radio network in which a set of base stations make opportunistic
unlicensed spectrum access to transmit data to their subscribers. As the spectrum of interest …

Resource allocation problem in cognitive radio networks (CRN) is one of the key issues to
improve the efficiency of spectrum utilization. Most of previous work on resource allocation …

In this paper, we study the optimal power control policies for fading channels in cognitive
radio networks considering both the transmit and the interference power constraints. For …

In this paper, we study the optimal power allocation strategies to achieve the delay-limited
capacity and outage capacity for fading channels in cognitive radio networks considering …

This paper derives tight ergodic sum-rate capacity scaling limits for cognitive radio
secondary networks under five different communication environments (CoE) for two different …

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 (secondary) …

Motivated by the desire for efficient spectral utilization, we present a novel algorithm based
on binary power allocation for sum rate maximization in Cognitive Radio Networks (CRN). At …

This paper considers a spectrum sharing based cognitive radio network where a M-user
fading multiple access network shares the same spectrum with an existing primary network …