Dynamic resource allocation in cognitive radio networks

R Zhang, YC Liang, S Cui - IEEE signal processing magazine, 2010‏ - ieeexplore.ieee.org
This article provides an overview of the state-of-art results on communication resource
allocation over space, time, and frequency for emerging cognitive radio (CR) wireless …

Intelligent reflecting surface-assisted cognitive radio system

J Yuan, YC Liang, J Joung, G Feng… - IEEE Transactions on …, 2020‏ - ieeexplore.ieee.org
Cognitive radio (CR) is an effective solution to improve the spectral efficiency (SE) of
wireless communications by allowing the secondary users (SUs) to share spectrum with …

SINR balancing technique for downlink beamforming in cognitive radio networks

K Cumanan, L Musavian… - IEEE Signal …, 2009‏ - ieeexplore.ieee.org
We propose a novel signal to interference and noise (SINR) balancing technique for a
downlink cognitive radio network (CRN) wherein multiple cognitive users (also referred to as …

Joint beamforming, power, and channel allocation in multiuser and multichannel underlay MISO cognitive radio networks

S Dadallage, C Yi, J Cai - IEEE Transactions on Vehicular …, 2015‏ - ieeexplore.ieee.org
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 …

Joint beamforming and user maximization techniques for cognitive radio networks based on branch and bound method

K Cumanan, R Krishna, L Musavian… - IEEE Transactions …, 2010‏ - ieeexplore.ieee.org
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 …

[ספר][B] Cooperative and cognitive satellite systems

S Chatzinotas, B Ottersten, R De Gaudenzi - 2015‏ - books.google.com
Cooperative and Cognitive Satellite Systems provides a solid overview of the current
research in the field of cooperative and cognitive satellite systems, hel** users understand …

[PDF][PDF] Cognitive radio communications and networks

AM Wyglinski, M Nekovee, YT Hou - IEEE Communications Magazine, 2008‏ - Citeseer
In the previous chapter, the benefits, from a theoretical perspective, of cooperative
communications were introduced. In this chapter we expand upon cooperative …

Large-scale multi-cluster MIMO approach for cognitive radio sensor networks

M Hefnawi - IEEE Sensors Journal, 2016‏ - ieeexplore.ieee.org
This paper proposes a large-scale cooperative multiple-input multiple-output (CMIMO)
beamforming scheme for uplink (UL) access in broadband cognitive radio wireless sensor …

Cooperative beamforming for cognitive radio systems with asynchronous interference to primary user

MH Hassan, MJ Hossain - IEEE transactions on wireless …, 2013‏ - ieeexplore.ieee.org
In a cognitive radio (CR) network when a group of CR users acts as relays for a given CR
user, a cooperative beamforming can be used to improve the quality of communications …

A distributed beamforming approach for enhanced opportunistic spectrum access in cognitive radios

J Liu, W Chen, Z Cao, YJ Zhang - GLOBECOM 2009-2009 …, 2009‏ - ieeexplore.ieee.org
Cognitive radio is a powerful solution that can significantly improve the utilization of the
precious limited radio spectrum. It allows secondary users (SUs) to opportunistically access …