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

  • 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 ...
  • Array covariance error measurement in adaptive source estimation 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (1994)
    Text en actes de congrés
    Accés obert
    The small error approximation is used to derive a linear relationship between the source parameters (i.e. power levels and directions of arrival) and a measurement of the covariance error matrix, defined as the difference ...
  • Estimación recursiva simultánea de potencia y DOA por ajuste de la matriz de covarianza asociada a la apertura 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (1992)
    Text en actes de congrés
    Accés obert
    The small error approximation is used to derive a linear relationship between the source parameters (i.e. power levels and directions of arrival or DOA's) and a measurement of the covariance error matrix, defined as the ...
  • Cellular internet service: advanced front-end for FDSS 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (1999)
    Text en actes de congrés
    Accés obert

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