A Cooperative Spectrum Sensing Scheme Using Fuzzy Logic for Cognitive Radio Networks

This paper proposes a novel scheme for cooperative spectrum sensing on distributed cognitive radio networks. A fuzzy logic rule - based inference system is proposed to estimate the presence possibility of the licensed user`s signal based on the observed energy at each cognitive radio terminal. The e...

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Bibliographic Details
Published in:KSII transactions on Internet and information systems 2010-06, Vol.4 (3), p.289-304
Main Authors: Thuc, Kieu-Xuan, Koo, In-Soo
Format: Article
Language:Korean
Subjects:
Cognitive radio
cooperative spectrum sensing
data fusion
fuzzy logic inference system
presence possibility
Online Access:Get full text
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Summary:This paper proposes a novel scheme for cooperative spectrum sensing on distributed cognitive radio networks. A fuzzy logic rule - based inference system is proposed to estimate the presence possibility of the licensed user`s signal based on the observed energy at each cognitive radio terminal. The estimated results are aggregated to make the final sensing decision at the fusion center. Simulation results show that significant improvement of the spectrum sensing accuracy is achieved by our schemes.
ISSN:1976-7277
1976-7277