El grup A&MP duu a terme investigació bàsica en tecnologies de capa física per sistemes de comunicacions i treballa sobre diferents esquemes de diversitat (espai, és a dir, múltiples antenes, freqüència, temps o codi) aplicats tant a sistemes d'un com de múltiples usuaris. Les activitats del grup també tenen en compte aspectes de nivell de sistema que puguin beneficiar-se de la interacció amb la capa física. Es consideran tant transmissió per cable com transmissió radio en entorns móvils o satel·lit.

http://futur.upc.edu/A&MP

El grupo A&MP lleva a cabo investigación básica en tecnologías de capa física para sistemas de comunicaciones y trabaja sobre diferentes esquemas de diversidad (espacial, es decir, con múltiples antenas, frecuencia, tiempo o código) aplicados tanto a sistemas de uno como de varios usuarios. Las actividades del grupo también tienen en cuenta aspectos a nivel de sistema que pueden beneficiarse de la interacción con la capa física. Se considera tanto transmisión por cable, como transmisión radio en entornos móviles o satélite.

http://futur.upc.edu/A&MP

The A&MP group carries out basic research in physical layer technologies that are devoted to communication systems. Different diversity schemes (i.e. spatial with multiple antennas, in frequency, time or code) are applied to either single user or multiple user transmission. Not only physical layer but also PHY/MAC cross-layer research is taken into consideration. Both, wired and wireless (i.e. mobile and satellite) transmission is considered.

http://futur.upc.edu/A&MP

The A&MP group carries out basic research in physical layer technologies that are devoted to communication systems. Different diversity schemes (i.e. spatial with multiple antennas, in frequency, time or code) are applied to either single user or multiple user transmission. Not only physical layer but also PHY/MAC cross-layer research is taken into consideration. Both, wired and wireless (i.e. mobile and satellite) transmission is considered.

http://futur.upc.edu/A&MP

Enviaments recents

  • Self-reference spatial diversity processing for spread spectrum communications 

    Pérez Palomar, Daniel; Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (2000-09)
    Article
    Accés restringit per política de l'editorial
    n this paper, the application of three blind (or selfreference) spatial diversity signal processing methods to Spread Spectrum (SS) communications is described. These methods do not require any kind of side information ...
  • Fourier models for non linear signal processing 

    Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A. (1999-12)
    Article
    Accés restringit per política de l'editorial
    This paper proposes a trigonometric functional extension, hereafter named the Fourier model, as an alternative framework to the Volterra approach for non-linear systems modelling. This work is focused on the general ...
  • Cross-coupled doa trackers 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A.; Kirlin, R L (1997-10)
    Article
    Accés obert
    A new robust, low complexity algorithm for multiuser tracking is proposed, modifying the two-stage parallel architecture of the estimate-maximize (EM) algorithm. The algorithm copes with spatially colored noise, large ...
  • Source reference in CIR beamforming 

    Lagunas Hernandez, Miguel A.; Nájar Martón, Montserrat (1992-01)
    Article
    Accés restringit per política de l'editorial
    This paper presents a procedure for CIR beamforming that avoids SVD-like proceduresm and is derived from the classic CINR solution. The resulting nulls along the direction of the impinging interferers are of the same degree ...
  • Eigendecomposition versus singular value decomposition in adaptive array signal processing 

    Duarte Ortigueira, Manuel; Lagunas Hernandez, Miguel A. (1991-10)
    Article
    Accés restringit per política de l'editorial
    Two important questions in array signal processing are addressed in this paper: the data matrix versus autocorrelation matrix alternative and the recursive implementation of subspace DOA methods. The discussion of the first ...
  • Source separation based on coupled single DOA estimation processors 

    Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A.; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 1993)
    Text en actes de congrés
    Accés obert
    The separation of sources from an array of sensors is addressed. Based on Kolmogorov's theorem, an adaptive algorithm is proposed to separate simultaneously all the unknown impinging sources on an aperture of sensors. This ...
  • Simultaneous DOA estimation based on Kolmogorov's theorem 

    Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 1993)
    Text en actes de congrés
    Accés obert
    The design of a new architecture for signal processing, based on the Kolmogorov's theorem (1957), is addressed. This architecture is applied to solve the problem of source separation. Particularly, an adaptive algorithm ...
  • Blind wideband source separation 

    Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A.; Bonet, I (1994)
    Text en actes de congrés
    Accés obert
    This paper deals with the general problem of separating two independent wideband sources when they are mixed by unknown filters. In order to solve this problem, a backward framework is proposed which is composed of two ...
  • Multiuser array beamforming based on a neural network mapping 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (1994)
    Text en actes de congrés
    Accés obert
    This paper addresses the problem of simultaneous multiuser service. To find a feasible solution to the collision problem, two time reference multibeamformer systems are developed (BPSK TRMB and frequency framing TRMB). ...
  • Simultaneous multiuser demodulation based on digital array processing 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (1994)
    Text en actes de congrés
    Accés obert
    The use of antenna arrays to increase the efficiency of a communication link is studied. This work addresses a technique to solve the collision problem that takes place when various users ask simultaneously for access. It ...

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