Results 41 to 50 of about 138,567 (160)
Spectrum Sensing Method Based on Information Geometry and Deep Neural Network
Entropy, 2020 Due to the scarcity of radio spectrum resources and the growing demand, the use of spectrum sensing technology to improve the utilization of spectrum resources has become a hot research topic.
Kaixuan Du +4 more
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A wideband spectrum sensing approach based on sub-band matching selection
Dianxin kexue, 2016 Wideband spectrum sensing technology based on compressed sensing can effectively reduce the high sampling rate and the complexity of spectrum sensing.During the sensing process,in order to enhance the reconstruction performance of the spectrum signal,a ...
Yuzhi YAN +4 more
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Optimisation of virtual cooperative spectrum sensing for UAV‐based interweave cognitive radio system
IET Communications, 2021 In an interweave cognitive radio system, cooperative spectrum sensing has been recognised as a key technology to enable secondary users to opportunistically access licensed spectrum band without harmful interference to primary users.
Jun Wu +8 more
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Research on spectrum sensing technologies based on goodness of fit
Dianxin kexue, 2016 Cognitive radio technology has achieved the dynamic allocation of spectrum resources,and improves the utilization rate of spectrum resources.Accurate and efficient spectrum sensing is the key step in cognitive radio.Developing a fast and high-performance
Guangyue LU, Cai XU, Yinghui YE, Yin MI
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Arid Zone Journal of Engineering, Technology and Environment, 2017 Cooperative spectrum sensing is a promising method for improving spectrum sensing performance in cognitive radio. Although it yields better spectrum sensing performance, it also incurs additional energy consumption that drains more energy from the sensor
I. Mustapha, D. Mustapha, M. Abbagana
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An Improved Blind Spectrum Sensing Technique for Cognitive Radio Systems
International Journal of Information and Communication Technology Research, 2011 Cognitive radio technology has been proposed as a key solution for the problem of inefficient usage of spectrum bands. Spectrum sensing is one of the most important issues in each cognitive radio system.
Navid Tafaghodi Khajavi +2 more
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Consensus-Based Distributive Cooperative Spectrum Sensing for Mobile Ad Hoc Cognitive Radio Networks
International Journal of Distributed Sensor Networks, 2013 Cognitive radio network (CRN) is an intelligent network that provides solution to underutilization of spectrum band by detecting spectrum holes. For this purpose, certain important tasks including spectrum sensing, spectrum analysis, and spectrum ...
Anam Raza +3 more
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Relay‐assisted spectrum sensing
IET Communications, 2014 A cooperative spectrum‐sensing problem has been considered here, in which a network of secondary users (SUs) assists a fusion centre (FC) in detecting the presence of a primary user (PU). Assuming communication links with unlimited capacity of the SUs and FC and known channel gains and noise variances, the optimal Neyman–Pearson detector is derived ...
Saeed Akhavan Astaneh, Saeed Gazor
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Dianxin kexue, 2016 Wideband distributed cooperative spectrum sensing based on compressed sensing can not only reduce high sampling rate,but also improve the spectrum sensing performance in low signal to noise ratio environment.In order to further enhance the spectrum ...
Yuzhi YAN +3 more
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Cooperative Spectrum Sensing Schemes with the Interference Constraint in Cognitive Radio Networks
Sensors, 2014 In this paper, we propose cooperative spectrum sensing schemes, called decode-and-forward cooperative spectrum sensing (DF-CSS) scheme and amplify-and-forward cooperative spectrum sensing (AF-CSS) scheme, in cognitive radio networks.
Tri-Nhu Do, Beongku An
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