An improved blind spectrum sensing scheme is established by the covariance matrix
Cholesky decomposition and radial basis function (RBF)-support vector machine (SVM) …

The present work proposes a subband energy detection method that performs efficiently
under noise uncertainty (NU) and frequency-selective channels. The critical impact of …

An efficient cooperative spectrum sensing (SS) scheme based on Cholesky decomposition
of the covariance matrix is proposed. The maximum eigenvalue (ME) of the matrix obtained …

The detection of spectrum 'holes' is one of the primary tasks of a cognitive radio (CR). Blind
detection techniques using eigenvalues have attracted a great amount of interest because of …

Traditional single-threshold state analysis and fault location methods for power system still
need to improve in detection accuracy and applicability. In this paper, a dual-threshold state …

State-of-the-art sensing methods only exploit three dimensions of the spectrum space:
frequency, time and geography whereas the angle dimension, that is, spatial spectrum …

Cooperative spectrum sensing, proposed to improve the performance of spectrum sensing
in cognitive radio systems where there are multiple secondary users who can cooperatively …

Cognitive radio employs an opportunistic spectrum access approach to ensure efficient
utilization of the available spectrum by secondary users (SUs). To allow SUs to access the …

Cognitive Radio is an opportunistic solution in wireless networks for optimal usage of
allocated spectrum and the most important part of cognitive radio is spectrum sensing. It has …

The scarcity of electromagnetic radio spectrum is due to its increasing usage day by day.
However, the allocated spectrum is underutilized due to the conventional approach of …