Listar Grupo de Tecnoloxía Electrónica e Comunicacións (GTEC) por autor "Castro-Castro, Paula-María"

Mostrando ítems 21-40 de 43

    • Hybrid Channel Estimation Strategy for MIMO Systems with Decision Feedback Equalizer 

      Pérez-Iglesias, Héctor J.; Dapena, Adriana; Castro-Castro, Paula-María; García-Naya, José A. (Springer, 2010)
      [Abstract] We propose to combine supervised and unsupervised algorithms in order to improve the performance of multiple-input multiple-output digital communication systems which make use of differential feedback equalizers ...

    • Hybrid Supervised-Unsupervised Channel Estimation Scheme with Dynamic Transmission of Pilots 

      Dapena, Adriana; Castro-Castro, Paula-María; García-Naya, José A. (Springer, 2011-02)
      [Abstract] Multiple-Input Multiple-Output (MIMO) digital communications standards typically include pilot symbols in the definition of the transmit signals with the purpose of acquiring the Channel State Information (CSI) ...

    • Implementación de una suite gráfica para reforzar el aprendizaje en representación de contenido multimedia 

      Fresnedo, Óscar; Laport López, Francisco; Castro-Castro, Paula-María; Dapena, Adriana; Vázquez Araújo, Francisco Javier (2019)
      [Resumen]: Las prácticas de las asignaturas en los grados de Ingeniería Informática se diseñan habitualmente para que los estudiantes formulen y construyan la solución a un determinado problema usando algún lenguaje de ...

    • Inductive loops for traffic control 

      Lamas-Seco, José J.; Castro-Castro, Paula-María; Dapena, Adriana; Vázquez Araújo, Francisco Javier (2015-09)
      Inductive Loop Detectors (ILDs) are the most commonly used sensors in traffic management systems. This work provides a system capable of obtaining simultaneous inductive signatures of vehicles traveling on a roadway with ...

    • Mobile Application for Analysing the Development of Motor Skills in Children 

      Moreno-Naya, David; Vázquez Araújo, Francisco Javier; Castro-Castro, Paula-María; Vivas-Costa, Jamile; Dapena, Adriana; González Doniz, Luz (MDPI AG, 2020-08-26)
      [Abstract] This work presents a mobile application to complement and reinforce the specific physical activities in children through training prior to such activities and monitoring their progress after it. This experiment ...

    • Moving to e-Service Learning in Higher Education 

      Dapena, Adriana; Castro-Castro, Paula-María; Ares-Pernas, Ana (MDPI, 2022)
      [Abstract] Service Learning is a methodology in which students achieve academic and transversal competences related to the curriculum of a subject while performing a service for the benefit of the community. With the ...

    • New Computation of Resolving Connected Dominating Sets in Weighted Networks 

      Dapena, Adriana; Iglesia, Daniel I.; Vázquez Araújo, Francisco Javier; Castro-Castro, Paula-María (M D P I AG, 2019-11-29)
      [Abstract] In this paper we focus on the issue related to finding the resolving connected dominating sets (RCDSs) of a graph, denoted by G. The connected dominating set (CDS) is a connected subset of vertices of G selected ...

    • Performance of MIMO systems in measured indoor channels with transmitter noise 

      Castro-Castro, Paula-María; González-Coma, José P.; García-Naya, José A.; Castedo, Luis (Springer, 2012)
      This study analyzes the impact of transmitter noise on the performance of multiple-input multiple-output (MIMO) systems with linear and nonlinear receivers and precoders. We show that the performance of MIMO linear and ...

    • PICTOTEMPO: An App for Personal Organization in Autism Spectrum Disorders 

      Vila-Muñoz, Noé; Castro-Castro, Paula-María; Fresnedo, Óscar (MDPI, 2021)
      [Abstract] In this work, we develop a mobile application which allows to create digital schedules for children with autism spectrum disorder. These schedules comprise a sorted sequence of tasks or activities which facilitates ...

    • PreLectO: An App for Cognitive Stimulation through Games in Early Childhood 

      Nogueiras, Pedro; Castro-Castro, Paula-María; Dapena, Adriana (MDPI, 2021)
      [Abstract] The goal of this work was to develop a mobile application for Android devices, with the objective of stimulating the cognitive skills of children from 0 to 6 years old who are suffering from learning disabilities, ...

    • Proposals and Comparisons from One-Sensor EEG and EOG Human-Machine Interfaces 

      Laport López, Francisco; Iglesia, Daniel I.; Dapena, Adriana; Castro-Castro, Paula-María; Vázquez Araújo, Francisco Javier (MDPI AG, 2021-03-22)
      [Abstract] Human-Machine Interfaces (HMI) allow users to interact with different devices such as computers or home elements. A key part in HMI is the design of simple non-invasive interfaces to capture the signals associated ...

    • QoS constrained power minimization in the MISO broadcast channel with imperfect CSI 

      González-Coma, José P.; Joham, Michael; Castro-Castro, Paula-María; Castedo, Luis (Elsevier, 2017-02)
      [Abstract]: In this paper we consider the design of linear precoders and receivers in a Multiple-Input Single-Output (MISO) Broadcast Channel (BC). We aim to minimize the transmit power while meeting a set of per-user ...

    • QoS constrained power minimization in the multiple stream MIMO broadcast channel 

      González-Coma, José P.; Joham, Michael; Castro-Castro, Paula-María; Castedo, Luis (Elsevier, 2018-02)
      [Abstract]: This work addresses the design of optimal linear transmit filters for the Multiple Input-Multiple Output (MIMO) Broadcast Channel (BC) when several spatial streams are allocated to each user. We further consider ...

    • Robust Precoding with Bayesian Error Modeling for Limited Feedback MU-MISO Systems 

      Joham, Michael; Castro-Castro, Paula-María; Castedo, Luis; Wolfgang, Utschick (IEEE, 2010)
      [Abstract] We consider the robust precoder design for multiuser multiple-input single-output (MU-MISO) systems where the channel state information (CSI) is fed back from the single antenna receivers to the centralized ...

    • Robust Precoding with Limited Feedback Design based on Precoding MSE for MU-MISO Systems 

      Joham, Michael; Castro-Castro, Paula-María; Utschick, Wolfgang; Castedo, Luis (Institute of Electrical and Electronics Engineers, 2012-06)
      [Abstract] For the separation of the signals in the vector broadcast channel (BC), some information about the channel state is necessary at the transmitter. In many cases, this channel state information (CSI) must be fed ...

    • Service-Learning methodology to develop Bachelor’s Thesis in Information and Computer Science Degrees 

      Castro-Castro, Paula-María; Fresnedo, Óscar; Dapena, Adriana; Pereira-Loureiro, Javier; Vázquez Araújo, Francisco Javier (PKP Publishing Services Network, 2024)
      [Abstract]: Service-Learning (SL) is a powerful methodology to acquire competences and values in Higher Education. However, there is still no widespread use in Information and Computer Science (ICS) degrees where most of ...

    • Service-Learning Projects in University Degrees Based on Sustainable Development Goals: Proposals and Results 

      Castro-Castro, Paula-María; Ares-Pernas, Ana; Dapena, Adriana (MDPI AG, 2020-09-25)
      [Abstract] We present several Service-Learning projects developed considering Sustainable Development Goals to provide the students skills for the support of a sustainable society. This project begins with collecting ...

    • SiDIVS: Simple Detection of Inductive Vehicle Signatures with a Multiplex Resonant Sensor 

      Lamas-Seco, José J.; Castro-Castro, Paula-María; Dapena, Adriana; Vázquez Araújo, Francisco Javier (Multidisciplinary Digital Publishing Institute, 2016)
      This work provides a system capable of obtaining simultaneous inductive signatures of vehicles traveling on a roadway with minimal cost. Based on Time-Division Multiplexing (TDM) with multiple oscillators, one for each ...

    • Study of Machine Learning Techniques for EEG Eye State Detection 

      Laport López, Francisco; Castro-Castro, Paula-María; Dapena, Adriana; Vázquez Araújo, Francisco Javier; Iglesia, Daniel I. (MDPI AG, 2020-08-31)
      [Abstract] A comparison of different machine learning techniques for eye state identification through Electroencephalography (EEG) signals is presented in this paper. (1) Background: We extend our previous work by studying ...

    • Testbed-Assisted Learning for Digital Communications Courses 

      García-Naya, José A.; Castro-Castro, Paula-María; González-López, Miguel; Dapena, Adriana (John Wiley & Sons, 2013-09)
      [Abstract] We introduce testbed-assisted learning as an effective means for teaching digital communications. Laboratory teaching activities of digital communications courses benefit very much from utilizing a hardware ...