Exploració per autor "Vázquez Vilar, Gonzalo"

Ara es mostren els items 1-5 de 5

    • 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 obert
      We 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 obert
      We 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'editorial
      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 ...

    • 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'editorial
      Dynamic 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 obert
      Spectrum 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 ...