The primary task in cognitive radio is to dynamically explore the radio spectrum and reliably
detect the co-existing licensed primary transmissions across a wide-band spectrum. This …

Spectrum sensing (SS) is one of the key tasks in cognitive radio networks that is performed
to get awareness about the usage of electromagnetic spectrum. It enables the secondary …

In Cognitive Radio Network an efficient fast and accurate wideband spectrum sensing
technique is highly required to identify the spectrum holes in wireless environment to …

Non‐contiguous orthogonal frequency division multiplexing (NC‐OFDM) technique has
been proposed in cognitive radio literature in which the Fourier transform is used to provide …

An accurate and efficient spectrum sensing technique is needed to find the spectrum white
spaces in a wireless radio environment for cognitive radio networks. Recently, a couple of …

So far machine learning (ML) has become increasingly significant in spectrum sensing (SS)
for future intelligent wireless communications. In order to obtain an effective SS performance …

In this paper, we present an experimental study of a new spectrum sensor architecture
based on application of discrete wavelet transform for preprocessing and feed forward …

With the rapid increases in the number of wireless devices, fixed spectrum allocation has
shown to be a major limitation to the evolution of wireless technologies. Cognitive radio (CR) …

This paper presents an implementation of a low complexity Wavelet OFDM system based on
Haar function. The OFDM transmitter generates the orthogonal signals, and the OFDM …

The rapid increasing interest in wireless communication has led to the continuous
development of wireless devices and technologies. The modern convergence and …