Selection-Based Detectors and Fusion Centers for Cooperative Cognitive Radio Networks in Heavy-Tailed Noise Environment

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In this paper, nonlinear schemes are proposed and analyzed for the spectrum sensing in cooperative cognitive radio networks under the influence of impulsive (heavy-tailed) noise. By jointly employing the order statistics, generalized likelihood ratio test, and counting rule in the framework of spectrum sensing according to the noise environment, the proposed scheme is shown to exhibit a better performance than the conventional counterparts. Through computer simulations, the performance characteristics of the proposed cooperative spectrum sensing scheme are investigated and analyzed in various noise circumstances. It is confirmed from numerical simulation results that the proposed scheme, under various noise circumstances which might be different from one cognitive radio to another, can provide significant improvements of performance over the conventional schemes.
Publisher
KOREAN INST COMMUNICATIONS SCIENCES (K I C S)
Issue Date
2017-06
Language
English
Article Type
Article
Keywords

ENERGY DETECTION; SIGNAL-DETECTION

Citation

JOURNAL OF COMMUNICATIONS AND NETWORKS, v.19, no.3, pp.259 - 269

ISSN
1229-2370
DOI
10.1109/JCN.2017.000043
URI
http://hdl.handle.net/10203/225250
Appears in Collection
EE-Journal Papers(저널논문)
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