DocumentCode :
2712973
Title :
Hybrid Spectrum Sensing Architecture for Cognitive Radio Equipment
Author :
Khalaf, Ziad ; Nafkha, Amor ; Palicot, Jacques ; Ghozzi, Mohamed
Author_Institution :
SCEE/IETR, SUPELEC, Cesson-Sévigne, France
fYear :
2010
fDate :
9-15 May 2010
Firstpage :
46
Lastpage :
51
Abstract :
Spectrum sensing is the key function in implementing cognitive radio, which enables secondary users to identify and utilize vacant spectrum resource allocated to primary users. Recent studies have proposed four major sensing methods, including matched filter, energy, feature, and eigenvalue-based detectors. However, there are some drawbacks along with them. In this paper, we propose a hybrid architecture, associating energy and cyclostationary detectors, for spectrum sensing that improves the ability of conventional energy detector to detect the primary user in the presence of noise uncertainty. In a constant noise environment, the performance of the proposed detector approaches that of an ideal radiometer.
Keywords :
cognitive radio; resource allocation; cognitive radio equipment; cyclostationary detectors; eigenvalue-based detectors; energy detector; hybrid spectrum sensing architecture; noise uncertainty; spectrum resource allocation; Cognitive radio; Computer vision; Detectors; Interference; Matched filters; Noise level; Resource management; Signal to noise ratio; Uncertainty; Working environment noise; Cognitive radio; Detection features; Energy detector; Spectrum sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Telecommunications (AICT), 2010 Sixth Advanced International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-6748-8
Type :
conf
DOI :
10.1109/AICT.2010.42
Filename :
5489702
Link To Document :
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