Exploració per autor "Vázquez Vilar, Gonzalo"
Ara es mostren els items 1-5 de 5
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Generalized perfect codes for symmetric classical-quantum channels
Blasco Coll, Andreu; Vázquez Vilar, Gonzalo; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2022-09)
Article
Accés obertWe define a new family of codes for symmetric classical-quantum channels and establish their optimality. To this end, we extend the classical notion of generalized perfect and quasi-perfect codes to channels defined over ... -
Multiantenna GLR detection of rank-one signals with known power spectral shape under spatially uncorrelated noise
Sala Álvarez, José; Vázquez Vilar, Gonzalo; López Valcarce, Roberto; Sedighi, Saeid; Taherpour, Abbas (2016-12-01)
Article
Accés obertWe establish the generalized likelihood ratio (GLR) test for a Gaussian signal of known power spectral shape and unknown rank-one spatial signature in additive white Gaussian noise with an unknown diagonal spatial ... -
Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation
Sala Álvarez, José; Vázquez Vilar, Gonzalo; López Valcarce, Roberto (2012-06)
Article
Accés restringit per política de l'editorialMultiple-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 ... -
Multiantenna spectrum sensing exploiting spectral a priori information
Vázquez Vilar, Gonzalo; López Valcarce, Roberto; Sala Álvarez, José (2011-12)
Article
Accés restringit per política de l'editorialDynamic Spectrum Access (DSA) is receiving considerable interest as a means to improve spectral usage in licensed bands. In order to avoid interference to licensed users, spectrum sensing has emerged as an enabling technology ... -
Multiantenna spectrum sensing for cognitive radio: overcoming noise uncertainty
López Valcarce, Roberto; Vázquez Vilar, Gonzalo; Sala Álvarez, José (2010)
Text en actes de congrés
Accés obertSpectrum sensing is a key ingredient of the dynamic spectrum access paradigm, but it needs powerful detectors operating at SNRs well below the decodability levels of primary signals. Noise uncertainty poses a significant ...