Articles with "primary user" as a keyword



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Countermeasures for Primary User Emulation Attack: A Comprehensive Review

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Published in 2020 at "Wireless Personal Communications"

DOI: 10.1007/s11277-020-07600-y

Abstract: Cognitive radio (CR) is a flexible wireless network that can solve the scarcity and underutilization problem of the spectrum by permitting unlicensed users to access licensed bands. The dynamic nature of CR makes it more… read more here.

Keywords: primary user; user emulation; emulation attack; countermeasures primary ... See more keywords
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Performance Analysis of a Cognitive Radio Network Under Energy Harvesting from Primary User Emulation Attacker

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Published in 2021 at "Wireless Personal Communications"

DOI: 10.1007/s11277-021-08816-2

Abstract: The paper reports the performance of an energy harvesting cognitive radio network under primary user emulation (PUE) attack. A secondary user (SU) can harvest energy from both non-RF (wind, temperature, solar, etc.) and RF sources… read more here.

Keywords: network; energy; performance; cognitive radio ... See more keywords
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Spectrum Sensing Techniques Based on Last Status Change Point Estimation for Dynamic Primary User in Additive Laplacian Noise

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Published in 2021 at "Wireless Personal Communications"

DOI: 10.1007/s11277-021-08984-1

Abstract: A real time scenario of dynamic primary user (PU) is considered in additive Laplacian noise. Two transitions or status changes of PU in the fixed sensing time are considered. The last status change point (LSCP)… read more here.

Keywords: status; dynamic primary; estimation; detection ... See more keywords
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Optimal sensing, fusion and transmission with primary user protection for energy-efficient cooperative spectrum sensing in CRNs

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Published in 2019 at "AEU - International Journal of Electronics and Communications"

DOI: 10.1016/j.aeue.2018.10.031

Abstract: Abstract In this paper, energy efficiency for cooperative spectrum sensing in cognitive radio network is investigated and optimized. The novel mathematical formulation of energy efficiency maximization problem by considering number of secondary users, sensing time,… read more here.

Keywords: optimal sensing; cooperative spectrum; energy; transmission ... See more keywords
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Discrete-Time Markov Chain Analysis of Energy Efficiency in a CR Network Regarding Primary and Secondary Traffic With Primary User Returns

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2825291

Abstract: In cognitive radio (CR) networks coexistence between primary and secondary networks is allowed to exploit the spectrum bands more efficiently. To have a green CR network, energy efficiency (EE) as well as collision probability between… read more here.

Keywords: traffic; interference; primary secondary; primary user ... See more keywords
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Improved Cognitive Radio Receivers Using Timing Mismatch of Primary and Secondary Users

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Published in 2019 at "IEEE Transactions on Circuits and Systems II: Express Briefs"

DOI: 10.1109/tcsii.2018.2870840

Abstract: We consider an asynchronous cognitive radio framework, where the primary user (spectrum license holder) and the secondary user are, naturally, not aligned in their timing. We show that applying our optimal receiver design results in… read more here.

Keywords: secondary user; user; improved cognitive; cognitive radio ... See more keywords
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Impact of Primary User Activity Statistics in Cognitive Vehicular Networks

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Published in 2022 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2021.3138253

Abstract: Due to the scarcity of channel availability in IEEE 802.11p standard, applications related to infotainment and multimedia services are vulnerable to suffer from delays and connectivity. Cognitive radio (CR) has the potential to overcome the… read more here.

Keywords: primary user; spectrum; activity; activity statistics ... See more keywords
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Online Primary User Emulation Attacks in Cognitive Radio Networks Using Thompson Sampling

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Published in 2021 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2021.3091588

Abstract: Spectrum sensing is one of the main components of the cognitive radio (CR) system, based on which secondary users (SUs) can get access to spectrum holes available. On the other hand, a malicious adversary can… read more here.

Keywords: online primary; spectrum sensing; cognitive radio; primary user ... See more keywords
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Detection of dynamic location primary user emulation on mobile cognitive radio networks using USRP

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Published in 2020 at "EURASIP Journal on Wireless Communications and Networking"

DOI: 10.1186/s13638-020-1657-0

Abstract: The study and the detection of possible network attacks are essential for wireless networks, in particular for mobile cognitive radio networks due to its characteristics such as the dynamic spectrum allocation and constant frequency hopping.… read more here.

Keywords: detection; user emulation; cognitive radio; primary user ... See more keywords