Title :
A Generalized Eigenvalue Based Detector for Cognitive Radio Systems
Author :
Jin, Ming ; Li, Youming ; Wang, Xiaoli
Author_Institution :
Coll. of Inf. Sci. & Eng., Ningbo Univ., Ningbo, China
Abstract :
In this paper, a generalized eigenvalue based detector is presented for detecting primary signals in cognitive radio systems with multiple antennas. Exploiting the characteristic of generalized Rayleigh quotient, the proposed algorithm has a better performance over the uniformly most powerful invariant (UMPI) detector. On the other hand, the proposed algorithm has quite well performance with correlated or uncorrelated antennas. Finally, numerical results are given to verify the effectiveness of this method.
Keywords :
antennas; cognitive radio; eigenvalues and eigenfunctions; signal detection; cognitive radio systems; correlated antennas; generalized Rayleigh quotient; generalized eigenvalue based detector; multiple antennas; primary signal detection; uncorrelated antennas; uniformly most powerful invariant detector; Cognitive radio; Detectors; Eigenvalues and eigenfunctions; Receiving antennas; Signal to noise ratio;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040017
