Loading...
Loading...

Go to the content (press return)

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

Author
Riba, J.; Font-Segura, J.; Villares, J.; Vazquez, G.
Type of activity
Journal article
Journal
IEEE transactions on signal processing
Date of publication
2014-04-01
Volume
62
Number
8
First page
1899
Last page
1912
DOI
https://doi.org/10.1109/TSP.2014.2303433 Open in new window
Project funding
Acceso dinámico y comunicaciones cognitivas-I
Communications and Signal Processing in Adverse Scenarios - 1
Repository
http://hdl.handle.net/2117/22790 Open in new window
URL
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6728710 Open in new window
Abstract
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...
Citation
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.
Keywords
Cognitive radio, Component, Cyclostationarity based detection, Frequency-smoothed cyclic periodogram, GLRT, LMPIT, Maximum-likelyhood, Noise, Spectral correlation, Tests, Timing synchronization
Group of research
SPCOM - Signal Processing and Communications Group

Participants