Reconfigurable filter implementation of a matched-filter based spectrum sensor for Cognitive Radio systems

Spectrum sensing is one of the most important features of Cognitive Radio (CR) systems. Matched-filter based spectrum sensing techniques provide optimum sensing performance given that a number of characteristics of the transmitted signal are known by the sensors. Assuming that the received signal pe...

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Bibliographic Details
Main Authors: Gholamipour, Amir Hossein, Gorcin, Ali, Celebi, Hasari, Toreyin, B. Ugur, Saghir, Mazen A. R., Kurdahi, Fadi, Eltawil, Ahmed
Format: Conference Proceeding
Language:English
Subjects:
Cognitive radio
Finite impulse response filter
Matched filters
Optimization
Radio frequency
Sensors
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Summary:Spectrum sensing is one of the most important features of Cognitive Radio (CR) systems. Matched-filter based spectrum sensing techniques provide optimum sensing performance given that a number of characteristics of the transmitted signal are known by the sensors. Assuming that the received signal pertains to one communication standard from a given set of wireless technologies, conventional spectrum sensors employ separate filters corresponding to each standard which gives rise to increased power consumption and ciruit size. A novel reconfigurable matched-filter based spectrum sensor to be deployed in CR systems is proposed in order to overcome the disadvantages of conventional design methods. This approach proposes a spectrum of design qualities which trade-off area for reconfiguration overhead. We will show that our approach is capable of designing reconfigurable filter for standards with widely varying filter characteristics.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2011.5938101