Multi-objective optimization of cognitive radio networks

RM Alonso, D Plets, M Deruyck, L Martens, GG Nieto… - Computer Networks, 2021 - Elsevier
New generation networks, based on Cognitive Radio technology, allow dynamic allocation
of the spectrum, alleviating spectrum scarcity. These networks also have a resilient potential …

Spectrum sensing using weighted covariance matrix in Rayleigh fading channels

M Jin, Q Guo, J Xi, Y Li, Y Yu… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
Covariance-based detection is a low-complexity blind spectrum sensing scheme that
exploits spatial and/or temporal correlations of primary signals. However, its performance …

Practical issues for spectrum management with cognitive radios

SM Dudley, WC Headley, M Lichtman… - Proceedings of the …, 2014 - ieeexplore.ieee.org
The policy of permanently assigning a frequency band to a single application has led to
extremely low utilization of the available spectrum. Cognitive radio, with its ability to be both …

Distributed cooperative spectrum sensing in cognitive radio for ad hoc networks

W Ejaz, N Ul Hasan, HS Kim - Computer Communications, 2013 - Elsevier
Cognitive radio refers to an intelligent radio with the capability of sensing the radio
environment and dynamically reconfiguring the operating parameters. Recent research has …

A sequential cooperative spectrum sensing scheme based on cognitive user reputation

H Vu-Van, I Koo - IEEE Transactions on Consumer Electronics, 2012 - ieeexplore.ieee.org
The spectrum sensing plays an essential role in Cognitive Radio (CR), which enables
opportunistic access to underutilized licensed spectrums. Cooperative spectrum sensing …

Maximum connectivity-based channel allocation algorithm in cognitive wireless networks for medical applications

D Jiang, Y Wang, Y Han, H Lv - Neurocomputing, 2017 - Elsevier
With the advent of multimedia and pattern recognition based medical technology,
intelligence medical applications in smart hospital, smart clinic, and smart medical for …

Novel filter bank-based cooperative spectrum sensing under practical challenges for beyond 5G cognitive radios

S Dikmese, K Lamichhane, M Renfors - EURASIP Journal on Wireless …, 2021 - Springer
Cognitive radio (CR) technology with dynamic spectrum management capabilities is widely
advocated for utilizing effectively the unused spectrum resources. The main idea behind CR …

Knapsack-based energy-efficient node selection scheme for cooperative spectrum sensing in cognitive radio sensor networks

NU Hasan, W Ejaz, S Lee, HS Kim - IET Communications, 2012 - IET
A cognitive radio (CR) is the most promising candidate for the successful deployment of
dynamic spectrum access (DSA). To embed DSA in a wireless sensor network, a CR is …

Spectrum sensing optimization and performance enhancement of cognitive radio networks

M Emara, HS Ali, SEA Khamis… - Wireless Personal …, 2016 - Springer
Cognitive radio (CR) is an attractive approach to face the shortage in the electromagnetic
spectrum resources and improve the overall spectrum utilization. In this paper, two spectrum …

Throughput optimization with cooperative spectrum sensing in cognitive radio network

A Bhowmick, MK Das, J Biswas… - 2014 IEEE …, 2014 - ieeexplore.ieee.org
In cognitive radio (CR) network spectrum sensing is an important issue. Cooperative
spectrum sensing improves the detection probability. The accuracy in taking decision about …