Experimental study of a Wavelet-based spectrum sensing technique

Author

De Almeida, Erika Portela Lopes ; De Carvalho, Paulo Henrique Portela ; Cordeiro, Pedro Antero Braga ; Vieira, Robson Domingos

Author_Institution

Dept. of Electr. Eng., Univ. of Brasilia, Brasilia

fYear

2008

fDate

26-29 Oct. 2008

Firstpage

1552

Lastpage

1556

Abstract

In this paper, the energy detection spectrum sensing technique, based on the wavelet transform, is investigated. In order to evaluate the accuracy of the methodology, spectrum measurements were made in bands allocated for FM broadcast (88-108 MHz) and mobile services (824-835 MHz). Modifications in an existing technique were proposed in order to improve the spectrum sensing when applied in real environments.

Keywords

broadcast channels; cognitive radio; signal detection; wavelet transforms; FM broadcast; cognitive radio; energy detection spectrum; frequency 824 MHz to 835 MHz; frequency 88 MHz to 108 MHz; mobile services; spectrum measurements; spectrum sensing technique; wavelet transform; Channel bank filters; Cognitive radio; Computer simulation; Detectors; Filter bank; Noise level; Radio frequency; Radio transmitters; Testing; Wavelet transforms; Cognitive radio; energy detection; spectrum sensing; wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2008 42nd Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2940-0

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2008.5074682

Filename

5074682