Now showing items 1-12 of 206

    • Comparison of linear and widely linear processing in MIMO-FBMC systems 

      Caus López, Marius; Pérez Neira, Ana Isabel (VDE Conference Publications, 2013)
      Conference report
      Restricted access - publisher's policy
      This paper carries out a comparison between two multi-stream techniques aimed for filter bank multicarrier (FBMC) systems based on the offset quadrature amplitude modulation (OQAM). The first option performs linear processing ...
    • Muestreo aleatorio en frecuencia aplicado a la identificación de sistemas no lineales 

      Pagès Zamora, Alba Maria; Nájar Martón, Montserrat; Pérez Neira, Ana Isabel (Universitat Politècnica de València, 1993)
      Conference report
      Open Access
    • Procesado espacial para sistemas de diversidad en frecuencia 

      Lagunas Hernandez, Miguel A.; Vidal Manzano, José; Pérez Neira, Ana Isabel (1998)
      Conference report
      Open Access
    • Wall mitigation techniques for indoor sensing within the compressive sensing framework 

      Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      Compressive sensing (CS) for urban operations and through-the-wall radar imaging has been shown to be successful in fast data acquisition and moving target localizations. However, the research work in this area thus ...
    • Diversity mdir receiver for space-time dispersive channels 

      Vidal Manzano, José; Cabrera-Bean, Margarita; Agustin, Adrian; Lagunas Hernandez, Miguel A. (European Commission, 2000)
      Conference report
      Open Access
      A particular property of the cellebrated MDIR receiver is introduced in this communication, namely, the fact that full exploitation of the diversity is obtained with multiple beamformers when the channel is spatially and ...
    • The RCAP: a concept for robust beamforming and high resolution DOA tracking 

      Pérez Neira, Ana Isabel; Villarino Villarino, Ramón; Lagunas Hernandez, Miguel A. (IEEE Press, 2000)
      Conference report
      Open Access
      Motivated by the objective of finding a reduced complexity implementation of the EM (estimate and maximize) algorithm, the authors move the concept of alternating projection (AP), reported Ziskind and Wax (1988), to a ...
    • Blind beamforming for DS-CDMA systems 

      Pérez Palomar, Daniel; Lagunas Hernandez, Miguel A. (Servicio de Publicaciones Universidad de Vigo, 1999)
      Conference report
      Open Access
      Code Division Multiple Access (CDMA) has been proposed as an efficient access method for cellular and personal communication systems outperforming the classical FDMA and TDMA techniques. But, in contrast to them, CDMA ...
    • Fuzzy techniques for robust localization & tracking 

      Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A.; Bas, J (GRETSI SERVICE, 1997)
      Conference report
      Open Access
      This work addresses the problem of spatial reference estimation in mobile scenarios. Novel techniques based on fuzzy logic are introduced to enhance the performance of a tracking system. Specifically, the model-free ...
    • Software Radio para antenas inteligentes en comunicaciones personales multistandard 

      Vidal Manzano, José; Cabrera-Bean, Margarita; Fonollosa, Javier R; Lagunas Hernandez, Miguel A.; Mestre, Xavier; Mestre Pons, Francesc X.; Pérez Neira, Ana Isabel (Patrocinadores: Alcatel, Indra, Amper y otros, 1998)
      Conference report
      Open Access
    • Experimental result for a sdma mobile communications antenna array system 

      Goldberg, Jason Matthew; Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A.; Rodríguez Fonollosa, Javier; Vázquez Grau, Gregorio (EE PUBL. EE PUBL., 1996)
      Conference report
      Open Access
      This paper presents experimental results for a Spatial Division Multiple Access cellular mobile communications system. The basestation antenna array testbed used to obtain the results is described in addition to sophisticated ...
    • High performance doa trackers derived from paralell low resolution detectors 

      Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (IEEE, 1996)
      Conference report
      Open Access
      Traditionally, high resolution spectral direction of arrival (DOA) estimation has been associated with algorithms rather than with a processing scheme or architecture. Motivated by previous work on feasible implementations ...
    • High resolution adaptative arrays based on random processing techniques: frequency hopping modulation 

      Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 1995)
      Conference report
      Open Access
      A new architecture for adaptive arrays using frequency hopping modulation is addressed. The resolution of the array and the interference rejection increase substantially applying random processing to the carrier frequency ...