Results 11 to 20 of about 215,250 (265)

Spectrum sharing security and attacks in CRNs: a review [PDF]

open access: yes, 2014
Cognitive Radio plays a major part in communication technology by resolving the shortage of the spectrum through usage of dynamic spectrum access and artificial intelligence characteristics.
Alhakami, Wajdi   +2 more
core   +3 more sources

Cognitive Radio for Smart Grid with Security Considerations

open access: yesComputers, 2016
In this paper, we investigate how Cognitive Radio as a means of communication can be utilized to serve a smart grid deployment end to end, from a home area network to power generation.
Khaled Shuaib   +4 more
doaj   +1 more source

Noncooperative equilibrium solutions for spectrum access in distributed cognitive radio networks [PDF]

open access: yes, 2008
This paper considers the problem of channel selection and dynamic spectrum access in distributed cognitive radio networks. The ability of a cognitive radio to adaptively switch between channels offers tremendous scope to optimize performance.
Armour, SMD   +4 more
core   +2 more sources

Cognitive radio networks

open access: yes2012 9th International Conference on Communications (COMM), 2012
Cognitive Radio Networks (CRNs) are emerging as a solution to increase the spectrum utilization by using unused or less used spectrum in radio environments. The basic idea is to allow unlicensed users access to licensed spectrum, under the condition that the interference perceived by the licensed users is minimal.
openaire   +3 more sources

Spectrum sharing and cognitive radio [PDF]

open access: yes, 2009
Spectrum sharing has been the subject of a 3 year research programme organised by the UK's Virtual Centre of Excellence in Mobile and Personal Communications.
Beach, MA   +5 more
core   +2 more sources

Throughput analysis for cognitive radio networks with multiple primary users and imperfect spectrum sensing [PDF]

open access: yes, 2012
In cognitive radio networks, the licensed frequency bands of the primary users (PUs) are available to the secondary user (SU) provided that they do not cause significant interference to the PUs.
Alouini, M.-S.   +4 more
core   +1 more source

The Design and the implementation of a robust scheme to combat the effect of malicious nodes in Cognitive Radio Ad Hoc networks

open access: yesSouth African Computer Journal, 2019
Cognitive radio network, which enables dynamic spectrum access, addresses the scarcity of radio spectrum caused by ever-increasing demand for spectrum.
Sekgoari Semaka Mapunya   +1 more
doaj   +1 more source

Signal Detection for QPSK Based Cognitive Radio Systems using Support Vector Machines [PDF]

open access: yes, 2015
Cognitive radio based network enables opportunistic dynamic spectrum access by sensing, adopting and utilizing the unused portion of licensed spectrum bands.
Khan, I.   +3 more
core   +4 more sources

Sensor Clustering and Sensing Technology for Optimal Throughput of Sensor-Aided Cognitive Radio Networks Supporting Multiple Licensed Channels

open access: yesInternational Journal of Distributed Sensor Networks, 2015
In cognitive radio networks, secondary users may not sense licensed channels efficiently due to problems of fading channel, shadowing, unfamiliar environment, and so forth.
Thanh-Tung Nguyen, Insoo Koo
doaj   +1 more source

Fuzzy logic, genetic algorithms, and artificial neural networks applied to cognitive radio networks: A review

open access: yesInternational Journal of Distributed Sensor Networks, 2022
Cognitive radios are expected to play an important role in capturing the constantly growing traffic interest on remote networks. To improve the usage of the radio range, a cognitive radio hub detects the weather, evaluates the open-air qualities, and ...
Ahmed Alkhayyat   +6 more
doaj   +1 more source

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