In this paper, signal denoising approach has been employed to enhance the detection
performance of the energy detection (ED) technique via reducing the noise effects on the PU …

The performance of energy detection (ED) technique is highly affected by the noise
fluctuation which leads to degrade the cognitive radio (CR) system accuracy. Therefore …

The fast development in wireless communications and frequency bands assignments for
every communication system limits the spectrum resources. Various techniques, for …

In this paper a new blind energy detection spectrum-sensing method based on Discreet
Wavelet Transform (DWT) is proposed. The method utilizes the DWT sub-band to collect the …

One promising approach to achieving high precision and low complexity in a cognitive radio
system is the energy detector based on the Discrete Wavelet Packet Transform (DWPT) …

Spectrum sensing, a technique to recognize unused or idle spectrum, is a key function for
cognitive radio (CR) and requires high precision and fast signal processing technique. To …

In a cognitive radio (CR) context, spectrum detection is a key task for searching white space
and avoiding harmful interference to primary users. A spectrum sensing scheme of time …

Spectrum sensing is regarded as a key technology in cognitive radio (CR). Energy detector
has been performed as an alternative spectrum sensing method because of its low …

Energy detection is most commonly employed technique for spectrum sensing in cognitive
radio networks due to its low computational and implementation complexities. However, the …

Currently, modern devices and applications for communications need huge frequency
bands since it has limited resources. To address this issue, the cognitive radio is considered …