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Frequency-domain GLR detection of a second-order cyclostationary signal over fading channels

Autor
Riba, J.; Font-Segura, J.; Villares, J.; Vazquez, G.
Tipus d'activitat
Article en revista
Revista
IEEE transactions on signal processing
Data de publicació
2014-04-01
Volum
62
Número
8
Pàgina inicial
1899
Pàgina final
1912
DOI
https://doi.org/10.1109/TSP.2014.2303433 Obrir en finestra nova
Projecte finançador
Acceso dinámico y comunicaciones cognitivas-I
Comunicaciones y Procesado de Señal en Escenarios Adversos - 1
Repositori
http://hdl.handle.net/2117/22790 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6728710 Obrir en finestra nova
Resum
Cyclostationary processes exhibit a form of frequency diversity. Based on that, we show that a digital waveform with symbol period T can be asymptotically represented as a rank-1 frequency-domain vector process which exhibits uncorrelation at different frequencies inside the Nyquist spectral support of 1/T. By resorting to the fast Fourier transform (FFT), this formulation obviates the need of estimating a cumbersome covariance matrix to characterize the likelihood function. We then derive the g...
Citació
Riba, J. [et al.]. Frequency-domain GLR detection of a second-order cyclostationary signal over fading channels. "IEEE transactions on signal processing", 01 Abril 2014, vol. 62, núm. 8, p. 1899-1912.
Paraules clau
Cognitive radio, Component, Cyclostationarity based detection, Frequency-smoothed cyclic periodogram, GLRT, LMPIT, Maximum-likelyhood, Noise, Spectral correlation, Tests, Timing synchronization
Grup de recerca
SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions

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