The most significant feature that cognitive radio systems must include in order to operate
properly is spectrum sensing. In this paper, we investigate the problem of designing …

In this paper, we consider the problem of spectrum sensing by using multiple antenna in
cognitive radios when the noise and the primary user signal are assumed as independent …

Spectrum sensing is the precondition of implementation of cognitive radio. Motivated by the
fact that eigenvalue detection algorithms are based on eigenvalue decomposition over the …

Spectrum sensing is a fundamental component in a cognitive radio. In this paper, we
propose new sensing methods based on the eigenvalues of the covariance matrix of signals …

In cognitive radios, energy detector is considered for spectrum sensing in the literature.
However, its performance deteriorates rapidly if the noise power is not known exactly …

This paper addresses the problem of spectrum sensing (SS) in cognitive radio networks
utilizing multiple-input multiple-output (MIMO) technology, even when the receivers are not …

In cognitive radios, energy detector is considered for spectrum sensing in the literature.
However, its performance deteriorates rapidly when noise power is fluctuating. In order to …

We propose a general multiple antennas' detector for spectrum sensing in cognitive radios
based on complex Rao test. In contrast with conventional spectrum sensing detectors, we do …

A new approach to spectrum sensing in cognitive radio systems based on the Kolmogorov-
Smirnov (KS) test is proposed. The KS test is a non-parametric method to measure the …

Efficiency of the wireless communication depends mainly on how the Radio Frequency (RF)
spectrum is allocated to the end users. Inadequacy of the RF spectrum resource transpires …