Cognitive radio networking and communications: An overview

YC Liang, KC Chen, GY Li… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
Cognitive radio (CR) is the enabling technology for supporting dynamic spectrum access:
the policy that addresses the spectrum scarcity problem that is encountered in many …

Cooperative spectrum sensing in cognitive radio networks: A survey

IF Akyildiz, BF Lo, R Balakrishnan - Physical communication, 2011 - Elsevier
Spectrum sensing is a key function of cognitive radio to prevent the harmful interference with
licensed users and identify the available spectrum for improving the spectrum's utilization …

Energy detection of unknown signals in fading and diversity reception

SP Herath, N Rajatheva… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
A comprehensive performance analysis of the energy detector over fading channels with
single antenna reception or with antenna diversity reception is developed. For the no …

Cooperative spectrum sensing in cognitive radio networks in the presence of the primary user emulation attack

C Chen, H Cheng, YD Yao - IEEE Transactions on wireless …, 2011 - ieeexplore.ieee.org
In recent years, the security issues of the cognitive radio (CR) networks have drawn a lot of
research attentions. Primary user emulation attack (PUEA), as one of common attacks …

Efficient cooperative cyclostationary spectrum sensing in cognitive radios at low SNR regimes

M Derakhshani, T Le-Ngoc… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
This paper proposes efficient cooperative cyclostationary spectrum sensing schemes in
which each secondary-user (SU) performs single-cycle (SC) cyclostationary detection for …

A selective-relay based cooperative spectrum sensing scheme without dedicated reporting channels in cognitive radio networks

Y Zou, YD Yao, B Zheng - IEEE Transactions on Wireless …, 2011 - ieeexplore.ieee.org
Typically, each cooperative spectrum sensing process requires two phases: the primary
user's signal detection phase, in which all cognitive users attempt to detect the presence of …

Cooperative spectrum sensing: State of the art review

N Pratas, NR Prasad, A Rodrigues… - 2011 2nd International …, 2011 - ieeexplore.ieee.org
Spectrum sensing is the key mechanism in enabling spectrum awareness in Cognitive
Radio. The performance of the spectrum sensing depends on the local channel conditions …

Cooperative spectrum sensing under a random geometric primary user network model

KW Choi, E Hossain, DI Kim - IEEE Transactions on Wireless …, 2011 - ieeexplore.ieee.org
We propose a novel cooperative spectrum sensing algorithm for a cognitive radio (CR)
network to detect a primary user (PU) network that exhibits some degree of randomness in …

Optimization of cooperative spectrum sensing in cognitive radio

T Cui, F Gao, A Nallanathan - IEEE Transactions on Vehicular …, 2011 - ieeexplore.ieee.org
In this paper, we consider cooperative spectrum sensing when two secondary users (SUs)
collaborate via the relaying scheme. We investigate two cooperative sensing strategies, ie …

Distributed cooperative spectrum sensing based on weighted average consensus

W Zhang, Z Wang, Y Guo, H Liu… - 2011 IEEE Global …, 2011 - ieeexplore.ieee.org
In this paper, we study the distributed spectrum sensing in cognitive radio networks. Using
weighted average consensus algorithm, we develop a weighted soft measurement …