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Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation
dc.contributor.author | Sala Álvarez, José |
dc.contributor.author | Vázquez Vilar, Gonzalo |
dc.contributor.author | López Valcarce, Roberto |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2018-05-23T16:53:42Z |
dc.date.issued | 2012-06 |
dc.identifier.citation | Sala, J., Vázquez-Vilar, G., López, R. Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation. "IEEE transactions on signal processing", Juny 2012, vol. 60, núm. 6, p. 3065-3078. |
dc.identifier.issn | 1053-587X |
dc.identifier.uri | http://hdl.handle.net/2117/117440 |
dc.description.abstract | Multiple-antenna detection of a Gaussian signal with spatial rank one in temporally white Gaussian noise with arbitrary and unknown spatial covariance is considered. This is motivated by spectrum sensing problems in the context of dynamic spectrum access in which several secondary networks coexist but do not cooperate, creating a background of spatially correlated broadband interference. When the temporal correlation of the signal of interest is assumed known up to a scale factor, the corresponding Generalized Likelihood Ratio Test is shown to yield a scalar optimization problem. Closed-form expressions of the test are obtained for the general signal spectrum case in the low signal-to-noise ratio (SNR) regime, as well as for signals with binary-valued power spectrum in arbitrary SNR. The two resulting detectors turn out to be equivalent. An asymptotic approximation to the test distribution for the low-SNR regime is derived, closely matching empirical results from spectrum sensing simulation experiments. |
dc.format.extent | 14 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal |
dc.subject.lcsh | Signal processing |
dc.subject.other | Capon beamformer |
dc.subject.other | Cognitive radio |
dc.subject.other | Correlated noise |
dc.subject.other | Detection |
dc.subject.other | GLR test |
dc.subject.other | Multiantenna array |
dc.subject.other | Noise uncertainty |
dc.subject.other | Spectral flatness measure |
dc.subject.other | Spectrum sensing |
dc.title | Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation |
dc.type | Article |
dc.subject.lemac | Tractament del senyal |
dc.contributor.group | Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
dc.identifier.doi | 10.1109/TSP.2012.2189767 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://ieeexplore.ieee.org/abstract/document/6164273/ |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 10439840 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Sala, J.; Vázquez-Vilar, G.; López, R. |
local.citation.publicationName | IEEE transactions on signal processing |
local.citation.volume | 60 |
local.citation.number | 6 |
local.citation.startingPage | 3065 |
local.citation.endingPage | 3078 |
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