Detection of dynamic primary user with cooperative spectrum sensing

In this paper we demonstrate that existing cooperative spectrum sensing formulated for static primary users cannot accurately detect dynamic primary users regardless of the information fusion method. Performance error occurs as the sensing parameters calculated by the conventional detector result in...

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Bibliographic Details
Published in21st European Signal Processing Conference (EUSIPCO 2013) pp. 1 - 5
Main Authors Senadji, Bouchra, Chang, Kevin
Format Conference Proceeding
LanguageEnglish
Published EURASIP 01.09.2013
Subjects
Cascading style sheets
Cognitive radio
Context
cooperating spectrum sensing
Detectors
duty cycle
dynamic primary user
Interference
Optimization
spectrum sensing
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Summary:In this paper we demonstrate that existing cooperative spectrum sensing formulated for static primary users cannot accurately detect dynamic primary users regardless of the information fusion method. Performance error occurs as the sensing parameters calculated by the conventional detector result in sensing performance that violates the sensing requirements. Furthermore, the error is accumulated and compounded by the number of cooperating nodes. To address this limitation, we design and implement the duty cycle detection model for the context of cooperative spectrum sensing to accurately calculate the sensing parameters that satisfy the sensing requirements. We show that longer sensing duration is required to compensate for dynamic primary user traffic.
ISSN:2219-5491
2219-5491