A survey of security challenges in cognitive radio networks: Solutions and future research directions

A Attar, H Tang, AV Vasilakos, FR Yu… - Proceedings of the …, 2012 - ieeexplore.ieee.org
In this survey, we present a comprehensive list of major known security threats within a
cognitive radio network (CRN) framework. We classify attack techniques based on the type …

Satellite cognitive communications: Interference modeling and techniques selection

SK Sharma, S Chatzinotas… - 2012 6th Advanced …, 2012 - ieeexplore.ieee.org
Due to increasing demand of high speed data rate for satellite multimedia and broadcasting
services and spectrum scarcity problem in satellite bands, exploring new techniques for …

[图书][B] Cognitive radio communication and networking: Principles and practice

RC Qiu, Z Hu, H Li, MC Wicks - 2012 - books.google.com
The author presents a unified treatment of this highly interdisciplinary topic to help define the
notion of cognitive radio. The book begins with addressing issues such as the fundamental …

Robust distributed power control in cognitive radio networks

S Parsaeefard, AR Sharafat - IEEE Transactions on Mobile …, 2012 - ieeexplore.ieee.org
We propose a robust distributed uplink power allocation algorithm for underlay cognitive
radio networks (CRNs) with a view to maximizing the social utility of secondary users (SUs) …

Chance constrained robust beamforming in cognitive radio networks

S Ma, D Sun - IEEE Communications Letters, 2012 - ieeexplore.ieee.org
We propose a novel method for chance constrained robust beamforming problem in
cognitive radio (CR) networks. Considering the channel estimation errors in practice, the …

Cooperative beamforming for cognitive radio networks: A cross-layer design

J Liu, W Chen, Z Cao, YJA Zhang - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
Cognitive Radio (CR) can significantly improve the utilization of the precious radio spectrum
by allowing Secondary Users (SUs) to borrow the licensed spectrum if they do not cause …

Synthesis and array processor realization of a 2-D IIR beam filter for wireless applications

RM Joshi, A Madanayake, J Adikari… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
A broadband digital beamforming algorithm is proposed for directional filtering of temporally-
broadband bandpass space-time plane-waves at radio frequencies (RFs). The …

Robust beamforming in interference channels with imperfect transmitter channel information

R Mochaourab, EA Jorswieck - Signal Processing, 2012 - Elsevier
We consider K links operating concurrently in the same spectral band. Each transmitter has
multiple antennas, while each receiver uses a single antenna. This setting corresponds to …

Relay selection in underlay cognitive radio networks

M Seyfi, S Muhaidat, J Liang - 2012 IEEE Wireless …, 2012 - ieeexplore.ieee.org
In this paper, we investigate the performance of relay selection in an underlay cognitive
radio system in the presence of primary user (PU) interference. In particular, we consider a …

Robust power allocation designs for cognitive radio networks with cooperative relays

S Mallick, R Devarajan, MM Rashid… - 2012 IEEE …, 2012 - ieeexplore.ieee.org
In this paper, we develop robust power allocation schemes for cognitive radio networks
(CRNs) that can operate in multiple bands with cooperative relays considering uncertainty …