We consider a network of cognitive users (also referred to as secondary users (SUs))
coexisting and sharing the spectrum with primary users (PUs) in an underlay cognitive radio …

We address the problem of multi-user downlink beamforming and power allocation in a
cognitive radio (CR) secondary network (SN) with constraints on the total interference in the …

Cognitive radio is a promising technique to dynamic utilize the spectrum resource and
improve spectrum efficiency. In this paper, we study the problem of mutual interference …

In this paper, we consider a multi-channel cognitive radio network (CRN) where multiple
secondary users share a single channel and multiple channels are simultaneously used by …

A cognitive radio (CR) network refers to a secondary network operating in a frequency band
originally licensed/allocated to a primary network consisting of one or multiple primary users …

We consider the problem of maximizing the throughput of a multi-antenna cognitive radio
(CR) network. With spatial multiplexing over each frequency band, a multi-antenna CR node …

Maximization of the weighted sum-rate of secondary users (SUs) possibly equipped with
multiantenna transmitters and receivers is considered in the context of cognitive radio (CR) …

In this paper, we consider joint beamforming, power, and channel allocation in a multiuser
and multichannel underlay multiple-input-single-output (MISO) cognitive radio network …

In this paper, we present a joint antenna beamforming and power allocation technique to
maximize the multiuser sum rate in an underlying microcellular system which reuses the …

Cognitive radio has been recently proposed as a promising technology to improve the
spectrum utilization. In this paper, we consider the coexistence between a large number of …