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Browsing by Subject "MIMO systems"

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Browsing by Subject "MIMO systems"

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    An efficient GPU implementation of fixed-complexity sphere decoders for MIMO wireless systems 
    Roger Varea, Sandra; Ramiro Sánchez, Carla; González Salvador, Alberto; Almenar Terré, Vicenç; Vidal Maciá, Antonio Manuel (IOS Press, 2012)
    The use of many-core processors such as general purpose Graphic Processing Units (GPUs) has recently become attractive for the efficient implementation of signal processing algorithms for communication systems. This is due ...
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    An Overview of Device-to-Device Communications Technology Components in METIS 
    Fodor, Gábor; Roger Varea, Sandra; Rajatheva, Nandana; Slimane, Ben Slimane; Svensson, Tommy; Popovski, Petar; Barros da Silva Junior, Jose Mairton; Ali, Samad (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    [EN] As the standardization of network-assisted device-to-device (D2D) communications by the Third Generation Partnership Project progresses, the research community has started to explore the technology potential of new ...
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    Channel Quantization Based on the Statistical Characterization of Spatially Correlated Fading 
    Domene Oltra, Fernando; Piñero Sipán, María Gemma; Diego Antón, María de; Gonzalez, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2015-09)
    Multiuser multiple-input-multiple-output (MUMIMO) techniques, such as scheduling and precoding, have shown to improve the spectral efficiency of wireless communication systems. However, these techniques require an accurate ...
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    Comparison of multivariate statistical methods for dynamic systems modeling 
    Barceló Cerdá, Susana; Vidal Puig, Santiago; Ferrer, Alberto (Wiley-Blackwell, 2011-02)
    In this paper two multivariate statistical methodologies are compared in order to estimate a multi-input multi-output transfer function model in an industrial polymerization process. In these contexts, process variables ...
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    Computing the closest positive definite correlation matrix for experimental MIMO cannel analysis 
    García Ariza, Alexis Paolo; Rubio Arjona, Lorenzo (Institute of Electrical and Electronics Engineers (IEEE), 2011-10)
    Under realistic propagation conditions in multiple-input-multiple-output (MIMO) wireless channels, some experimental (measured) full-spatial-correlation (FSC) MIMO channel matrices may not be positive definite, especially ...
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    Control de un sistema multivariable no lineal y en fase no mínima empleando un controlador predictivo neuronal 
    Calle Chojeda, Elmer; Oliden Semino, José; Ipanaqué Alama, William (Universitat Politècnica de València, 2022-12-28)
    [EN] In this paper, a Neural Predictive Controller (ANN-MPC) is proposed to control a nonlinear quadruple tank system, which is complex to control due to the nonlinearity of its valves and the interaction between its ...
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    Improved Planar Wideband Antenna Element and its Usage in a Mobile MIMO System 
    Sonkki, Marko; Antonino Daviu, Eva; Cabedo Fabrés, Marta; Ferrando Bataller, Miguel; Salonen, E.T. (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    A simple antenna structure for a multiple-input-multiple-output (MIMO) system in a mobile terminal with spatial diversity is presented. A single antenna element consists of a combination of an electric dipole and a square ...
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    Launch vehicle attitude control in atmospheric flight 
    Gironés Sangüesa, Beatriz (Universitat Politècnica de València, 2022-09-07)
    [ES] La tesis se centra en el diseño de técnicas de control de vuelo para el control de actitud de un vehículo lanzador (LV) durante la fase atmosférica del vuelo. Se persigue la estabilidad bajo unos márgenes que aseguren ...
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    Modelling, Simulation and Control of a Twin Rotor MIMO-System 
    Gabriel Christoph, Blasco Xavier; García-Nieto Rodríguez, Sergio (Universitat Politècnica de València, 2016-06-23)
    The object of the project is to simulate and control the laboratory helicopter model called Twin-Rotor Multiple Input-Multiple Output System (TRMS 33-220), manufactured by Feedback Instruments Limited Company. So the first ...
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    Non-uniform Sampled Data Control of MIMO Systems 
    Albertos Pérez, Pedro; Salt Llobregat, Julián José (International Federation of Automatic Control, 2011-04)
    In this paper, the problem of controlling MIMO plants where the pattern of measurements sampling and control actions delivering is not regular is tackled. Multirate control, time delay systems, missing data environments ...
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    Performance Analysis of Carrier-Aggregated Multi-Antenna 4×4 MIMO LTE-A Fronthaul by Spatial Multiplexing on Multicore Fiber 
    Morant, Maria; Llorente, Roberto (Institute of Electrical and Electronics Engineers, 2018)
    [EN] In this paper,we experimentally propose and evaluate the performance of multiantenna LTE-Advanced (LTE-A) systems implementing multiple-input-multiple-output (MIMO) space división multiplexing on multicore fiber, ...
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    Printed Multimode Antenna for MIMO Systems 
    Antonino Daviu, Eva; Cabedo Fabrés, Marta; Bernardo Clemente, Bernardo; Ferrando Bataller, Miguel (Taylor and Francis, 2011)
    A compact printed multimode antenna for Multiple-Input Multiple-Output (MIMO) systems is presented. The antenna consists of a slotted metallic ring antenna excited by four L-shaped microstrip feeding lines, which are ...
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    Una Medida de Interacción Multivariable en el Dominio del Tiempo y de la Frecuencia 
    Salgado, Mario E.; Yuz, Juan I. (Universitat Politècnica de València, 2009-04-07)
    [ES] En este artículo se extiende el análisis de la Matriz de Participación, como herramienta para cuantificar la interacción en sistemas multivariables y para seleccionar, acorde con esa cuantificación, la estructura de ...