Application of Fuzzy Logic to Cognitive Radio Systems

Marja MATINMIKKO  Tapio RAUMA  Miia MUSTONEN  Ilkka HARJULA  Heli SARVANKO  Aarne MAMMELA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.12   pp.3572-3580
Publication Date: 2009/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.3572
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Dynamic Spectrum Access)
Category: 
Keyword: 
cognitive radio,  cooperative sensing,  efficient spectrum use,  fuzzy logic,  radio resource management,  spectrum sensing,  

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Summary: 
This paper reviews applications of fuzzy logic to telecommunications and proposes a novel fuzzy combining scheme for cooperative spectrum sensing in cognitive radio systems. A summary of previous applications of fuzzy logic to telecommunications is given outlining also potential applications of fuzzy logic in future cognitive radio systems. In complex and dynamic operational environments, future cognitive radio systems will need sophisticated decision making and environment awareness techniques that are capable of handling multidimensional, conflicting and usually non-predictable decision making problems where optimal solutions can not be necessarily found. The results indicate that fuzzy logic can be used in cooperative spectrum sensing to provide additional flexibility to existing combining methods.