CR-IoTNet: Machine learning based joint spectrum sensing and allocation for cognitive radio enabled IoT cellular networks

R Ahmed, Y Chen, B Hassan, L Du - Ad Hoc Networks, 2021 - Elsevier
In recent years, the Internet of Things (IoT) paradigm has gained much popularity due to its
potential ability to integrate the physical world with the digital world. However, this digital …

One-bit spectrum sensing for cognitive radio

PW Wu, L Huang, D Ramírez… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Spectrum sensing for cognitive radio requires effective monitoring of wide bandwidths,
which translates into high-rate sampling. Traditional spectrum sensing methods employing …

Pietra-Ricci index detector for centralized data fusion cooperative spectrum sensing

DA Guimaraes - IEEE Transactions on Vehicular Technology, 2020 - ieeexplore.ieee.org
The Pietra-Ricci index is often used in economic and social sciences as a measure of
inequality. In this Correspondence, the index is adapted to the cooperative spectrum …

A Gaussian mixture model method for eigenvalue-based spectrum sensing with uncalibrated multiple antennas

S Majumder - Signal Processing, 2022 - Elsevier
In this article, a novel spectrum sensing technique for cognitive radio (CR) is proposed
where eigenvalues of the covariance matrix of the received signal are used as features for …

Robust test statistic for cooperative spectrum sensing based on the Gerschgorin circle theorem

DA Guimarães - IEEE Access, 2017 - ieeexplore.ieee.org
The Gerschgorin circle theorem was recently applied to build two detectors for the purpose
of spectrum sensing in cognitive radio applications, the so-called Gerschgorin radius-based …

Robust and blind eigenvalue-based multiantenna spectrum sensing under IQ imbalance

A Mehrabian, A Zaimbashi - IEEE Transactions on Wireless …, 2018 - ieeexplore.ieee.org
We investigate the spectrum sensing problem in a single-input-multiple-output cognitive
radio system under in-phase and quadrature imbalance (IQI). To do this, the received signal …

A unified framework for multistatic passive radar target detection under uncalibrated receivers

A Zaimbashi - IEEE Transactions on Signal Processing, 2021 - ieeexplore.ieee.org
This work addresses the target-detection problem in a passive multistatic radar consisting of
one transmitter and several spatially separated receivers (ie, single-input multiple-output …

A utilization of multiple antenna elements for matched filter based spectrum sensing performance enhancement in cognitive radio system

AA Kabeel, AH Hussein, AAM Khalaf… - AEU-International Journal …, 2019 - Elsevier
Cognitive radio (CR) has been classified as a promising technology which can significantly
mitigate the impact of spectrum underutilization and spectrum scarceness arising from …

Modified Gini index detector for cooperative spectrum sensing over line-of-sight channels

DA Guimarães - Sensors, 2023 - mdpi.com
Recently, the Gini index detector (GID) has been proposed as an alternative for data-fusion
cooperative spectrum sensing, being mostly suitable for channels with line-of-sight or …

Optimal spectrum sensing in MIMO-based cognitive radio wireless sensor network (CR-WSN) using GLRT with noise uncertainty at low SNR

R Ahmed, Y Chen, B Hassan - AEU-International Journal of Electronics …, 2021 - Elsevier
Noise uncertainty can severely deteriorate a primary user (PU) detector's sensing
performance, so robustness against the noise uncertainty is of fundamental significance in …