Wireless communication has become an essential part of todays technology. It is widely
used in human life and in various applications. One of them is radio frequency (RF) based …

This paper presents a new algorithm based on the Jarque-Bera (JB) test for spectrum
sensing in cognitive networks subject to Rayleigh fading. In the proposed method, based on …

One of the most important aspects of any conversation is to maintain the intelligibility and
integrity of the message. Assume that the data being transferred is accompanied by an …

This paper presents an analysis of spectrum sensing to determine if a signal, measured by a
cognitive user in an AWGN channel, is a valid one, from the primary user, or if it is composed …

The cognitive radio concept is fostered by the scarcity of frequency bands for wireless
communication. Several new techniques and algorithms are being proposed to deal with the …

O sensoriamento espectral é uma importante ferramenta para a expansão do rádio
cognitivo. Este trabalho avalia a adoção de testes estatísticos para otimizar a detecção …

Rádio cognitivo é uma tecnologia emergente que permite a ocupação espectral dinâmica
ao monitorar se uma banda de frequências está momentaneamente disponível. O …

This paper focus on the problem of spectrum sensing based on multiple receive antennas. In
this context, we propose a novel kurtosis based Combined Second Order Moments (CSOM) …

Cognitive radio applications are limited by the scarcity of available frequency bands for
telecommunication services. The improvement of the spectrum sensing to enable a better …

O conceito de radio cognitivo vera sendo impulsionado devido a escassez de bandas de
frequencia disponiveis para os services de telecomunicacoes. O radio cognitivo permite …