DocumentCode :
3257327
Title :
MMME and DME: Two new eigenvalue-based detectors for spectrum sensing in cognitive radio
Author :
Bollig, Andreas ; Mathar, Rudolf
Author_Institution :
Inst. for Theor. Inf. Technol., RWTH Aachen Univ., Aachen, Germany
fYear :
2013
fDate :
3-5 Dec. 2013
Firstpage :
1210
Lastpage :
1213
Abstract :
Cognitive radio and dynamic spectrum access (DSA) promise to ease the scarcity of radio spectrum, which is growing more acute as the demand for wireless connectivity increases. One of the key ingredients of a reliable and efficient DSA system is spectrum sensing, i.e., the act of checking a spectral resource´s occupancy state before opportunistically accessing it. To this end, the present work proposes two new eigenvalue-based detectors, the Maximum-Minus-Minimum-Eigenvalue (MMME) detector and the Difference-of-Means-of-Eigenvalues (DME) detector, both of which exploit the properties of the eigenvalues of the covariance matrix of a received signal, which is contaminated with i.i.d. noise. We explain the intuition behind the new detectors, investigate the choice of the DME detector´s parameter and assess their performance in comparison to other covariance-based detectors.
Keywords :
cognitive radio; covariance matrices; eigenvalues and eigenfunctions; radio spectrum management; signal detection; DME; DSA system; MMME; cognitive radio; covariance matrix; covariance- based detector; difference-of-means-of-eigenvalues detector; dynamic spectrum access; eigenvalue-based detector; i.i.d. noise; maximum-minus-minimum-eigenvalue detector; radio spectrum scarcity; spectral resource occupancy state; spectrum sensing; Cognitive radio; Covariance matrices; Detectors; Eigenvalues and eigenfunctions; Signal to noise ratio; Cognitive Radio; Covariance Matrix; Eigenvalues; Spectrum Sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Conference on Signal and Information Processing (GlobalSIP), 2013 IEEE
Conference_Location :
Austin, TX
Type :
conf
DOI :
10.1109/GlobalSIP.2013.6737125
Filename :
6737125
Link To Document :
بازگشت