Sub-Nyquist wideband spectrum sensing techniques for cognitive radio: A review and proposed techniques

GP Aswathy, K Gopakumar - AEU-International Journal of Electronics and …, 2019 - Elsevier
Spectrum scarcity and under-utilization of the apportioned spectral resources by the
licensed users have led to the introduction of a new communication paradigm called …

A hybrid spectrum sensing approach to select suitable spectrum band for cognitive users

R Rajaguru, KV Devi, P Marichamy - Computer Networks, 2020 - Elsevier
In recent years, the usage of wireless devices and wireless service has been increased
exponentially and it results in spectrum scarcity. The policies of regulatory authority employ …

[HTML][HTML] An active and passive reputation method for secure wideband spectrum sensing based on blockchain

X Xie, Z Hu, M Chen, Y Zhao, Y Bai - Electronics, 2021 - mdpi.com
Spectrum is a kind of non-reproducible scarce strategic resource. A secure wideband
spectrum sensing technology provides the possibility for the next generation of ultra-dense …

A robust multistage spectrum sensing model for cognitive radio applications

K Mourougayane, B Amgothu, S Bhagat… - … -International Journal of …, 2019 - Elsevier
Spectrum sensing is widely exploited in Cognitive Radio (CR) to detect and utilize the
unoccupied, underutilized frequency bands. Reliable spectrum sensing is an essential …

Performance evolution of ED-based spectrum sensing in CR over Nakagami-m/shadowed fading channel with MRC reception

PK Verma, SK Soni, P Jain - AEU-International Journal of Electronics and …, 2018 - Elsevier
Internet of things contains the hefty number of devices with diverse types of communication
interfaces. Therefore, these devices act as a source of interference to the primary users in …

Performance Analysis of Centralized Cooperative Schemes for Compressed Sensing

L Rugini, P Banelli - Sensors, 2024 - mdpi.com
This paper presents a performance analysis of centralized spectrum sensing based on
compressed measurements. We assume cooperative sensing, where unlicensed users …

Improved spectrum sensing and achieved throughput of multiband cognitive radio systems under probabilistic spectrum access

M Karimi, SMS Sadough - AEU-International Journal of Electronics and …, 2018 - Elsevier
We investigate wideband spectrum sensing for multiband cognitive radio (CR) to
opportunistically detect spectrum holes without causing harmful interference to licensed …

SU throughput enhancement in a decision fusion based cooperative sensing system

S Shrivastava, DP Kothari - AEU-International Journal of Electronics and …, 2018 - Elsevier
Wireless communication systems primarily depend on the availability of bandwidth.
Cognitive radio has been realized as an effective means to maximize the bandwidth for …

Throughput maximization for multimedia communication with cooperative cognitive radio using adaptively controlled sensing time

MA Elhassan, M Abd-Elnaby, SA El-Dolil… - Multimedia Tools and …, 2019 - Springer
In the last years, most researches proved that spectrum holes are not efficiently utilized in
wireless communications. Cognitive radio (CR) is an efficient solution to face inefficient …

Performance evaluation of cooperative spectrum sensing over fading channels based on neural network learning approach

R Mustafa, RR Jaglan, S Agrawal - Proceedings of 2nd International …, 2019 - Springer
Cognitive Radio (CR) is a promising technique for effective utilization of the radio spectrum.
Detection accuracy is compromised when a network user experiences fading and …