Communication technologies are evolving drastically in recent years. However, the scarcity
of spectrum began to appear with the accelerating usage of various communication …

The continuous growth of demand experienced by wireless networks creates a spectrum
availability challenge. Cognitive radio (CR) is a promising solution capable of overcoming …

Spectrum sensing is one of the most important and challenging tasks in cognitive radio. To
develop methods of dynamic spectrum access, robust and efficient spectrum sensors are …

The rapidly growing number of wireless communication devices has led to massive
increases in radio traffic density, resulting in a noticeable shortage of available spectrum. To …

It is widely believed that the advances of networking technologies will reshape the future of
telecommunication system. The continuous growth in data traffic originated by mobile users …

Cognitive radio is a technology developed for the effective use of radio spectrum sources.
The spectrum sensing function plays a key role in the performance of cognitive radio …

The main spectrum sensing (SS) techniques suitable for cognitive radio networks (CRNs)
such as energy, matched filter, covariance and Hadamard ratio-based detectors are …

Spectrum sensing is of crucial importance in cognitive radio (CR) networks. In this paper, a
reliable spectrum sensing scheme is proposed, which uses K‐nearest neighbor, a machine …

Due to the under-utilization problem of the allocated radio spectrum, cognitive radio (CR)
communications have recently emerged as a reliable and effective solution. Among various …

Due to the huge number of diverse wireless devices and technologies, spectacular
increases in the number of wireless subscribers, advent of new applications and continuous …