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Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio [PDF]
, 2013 Cognitive radio offers an increasingly attractive solution to overcome the underutilization problem. A sensor network based cooperative wideband spectrum sensing is proposed in this paper. The purpose of the sensor network is to determine the frequencies
Ammar, M. +4 more
core +2 more sources
Cognitive radio-enabled Internet of Vehicles (IoVs): a cooperative spectrum sensing and allocation for vehicular communication [PDF]
, 2018 Internet of Things (IoTs) era is expected to empower all aspects of Intelligent Transportation System (ITS) to improve transport safety and reduce road accidents. US Federal Communication Commission (FCC) officially allocated 75MHz spectrum in the 5.9GHz
Eze, Elias Chinedum +3 more
core +2 more sources
Cognitive node selection and assignment algorithms for weighted cooperative sensing in radar systems [PDF]
, 2009 For the radar spectrum to be shared efficiently a good sensing capability within a secondary cognitive communication system is required. In this paper, the swept radar's rotation mechanism is explored to improve the sensing performance.
Doufexi, A +3 more
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Spectrum Sensing in Cognitive Radio Networks [PDF]
, 2010 Print ISBN: 978-1-4200-7775-9Today, the creation of new radio access technologies is limited by the shortage of the available radio spectrum. These new technologies are becoming evermore bandwidth de- manding due to their higher rate requirements ...
Cardoso, Leonardo Sampaio +4 more
core +3 more sources
Spectrum Sensing: To Cooperate or Not to Cooperate? [PDF]
EAI Endorsed Transactions on Wireless Spectrum, 2014 While it is well accepted that cooperative spectrum sensing will significantly improve the sensing performance, the necessity of cooperation is not sufficiently appreciated. In this paper, by analyzing the spectrum sensing problem from the system perspective, we show that without cooperation, the performance will suffer from a fundamental tradeoff ...
Dongliang Duan +2 more
openaire +2 more sources
Defending Against Cooperative Attacks in Cooperative Spectrum Sensing [PDF]
IEEE Transactions on Wireless Communications, 2013 Accurate spectrum sensing is important in cognitive radio networks. False sensing results in either waste of spectrum or harmful interference to primary users. To improve accuracy, cooperative spectrum sensing, in which a set of secondary users cooperatively sense the presence of the primary user, has emerged.
Zhengrui Qin, Qun Li, George Hsieh
openaire +1 more source
Advanced Energy Detector Based Cooperative Spectrum Sensing In Cognitive Networks
MATEC Web of Conferences, 2016 Cognitive radio is a befitting hopeful technology for future. Spectrum sensing is the most critical function of cognitive radio. Most of the spectrums sensing processes proposed earlier become impractical at lower signal to noise ratio conditions.
Ritu, Seehra Ameeta
doaj +1 more source
IEEE Access, 2020 Due to the negative impact from spatial correlation, spatially correlated cognitive radio (CR) based devices participating in cooperative spectrum sensing may be harmful to the detection performance.
Runze Wan +3 more
doaj +1 more source
A Low-Overhead Energy Detection Based Cooperative Sensing Protocol for Cognitive Radio Systems
, 2009 Cognitive radio and dynamic spectrum access represent a new paradigm shift in more effective use of limited radio spectrum. One core component behind dynamic spectrum access is the sensing of primary user activity in the shared spectrum.
Lau, Vincent K. N. +2 more
core +3 more sources
Supplementary Material to “Distributed Consensus-based Weight Design for Cooperative Spectrum Sensing” [PDF]
, 2015 —This material is a supplement to the paper “Distributed Consensus-based Weight Design for Cooperative Spectrum Sensing”. Section 1 offers related literature review on cooperative spectrum sensing and consensus algorithms.
Chen, Yingying +5 more
core +2 more sources