Title:
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Sphericity minimum description length: asymptotic performance under unknown noise variance
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Author:
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Font Segura, Josep; Riba Sagarra, Jaume; Vázquez Grau, Gregorio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
Abstract:
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This paper revisits the model order selection problem in the context of second-order spectrum sensing in cognitive radio. Taking advantage of the recent interest on the generalized likelihood ratio (GLR), the asymptotic performance of the minimum description length (MDL) rule under unknown noise variance is addressed. In particular, by exploiting the asymptotically Chi-squared distribution of the GLR, a complete characterization of the error probability is reported, instead of approximating only the missed-detection probability as done in the literature. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils -Information theory -Cognitive radio networks -Information theory -Probability distributions -Spurious signal noise -Asymptotic performance -Chi-squared distribution -Error probabilities -Generalized likelihood ratio -Minimum description length -Missed detection probabilities -Model-order selection -Noise uncertainties -Informació, Teoria de la -Ràdio cognitiva |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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