Browsing Grupo de Tecnoloxía Electrónica e Comunicacións (GTEC) by Author "Dapena, Adriana"

Now showing items 1-20 of 41

    • A Comparative Study of Low Cost Open Source EEG Devices 

      Laport López, Francisco; Vázquez Araújo, Francisco Javier; Iglesia, Daniel I.; Castro-Castro, Paula-María; Dapena, Adriana (MDPI AG, 2019-08-05)
      [Abstract] A comparison of two open source electroencephalography devices designed to acquire signals associated to the brain activity is presented in this work. The experiments are developed considering the task of ...

    • A low-cost decision-aided channel estimation method for Alamouti OSTBC 

      Castro-Castro, Paula-María; Dapena, Adriana; García-Naya, José A.; Labrador, Josmary (Springer, 2013-11)
      [Abstract] In wireless communication systems, channel state information (CSI) acquisition is typically performed at the receiver side every time a new frame is received, without taking into account whether it is really ...

    • A MATLAB Tool for Visualizing the 3D Polar Power Patterns and Excitations of Conformal Arrays 

      Brégains, Julio; García-Naya, José A.; González-López, Miguel; Dapena, Adriana (Institute of Electrical and Electronics Engineers, 2010-08)
      [Abstract] This paper describes the implementation of a MATLAB® tool to plot the three-dimensional polar radiation diagram generated by a conformal antenna array. A related tool has also been developed for visualizing the ...

    • A Novel Criterion for Vehicle Classification using Inductive Vehicle Signatures 

      Lamas-Seco, José J.; Dapena, Adriana; Vázquez-Araújo, Francisco J.; Castro-Castro, Paula-María (Institute of Research Engineers and Doctors (IRED), 2016-04)
      [Abstract]: Inductive Loop Detectors (ILD) are the most commonly used sensors in traffic management systems. Using the acquired inductive signatures, most proposed systems classify the vehicles using a criterion based ...

    • A Novel Hybrid Approach to Improve Performance on Frequency Division Duplex Systems with Linear Precoding 

      Castro-Castro, Paula-María; García-Naya, José A.; Iglesia, Daniel I.; Dapena, Adriana (Springer, 2010)
      [Abstrtact] Linear precoding is an attractive technique to combat interference in multiple-input multiple-output systems because it reduces costs and power consumption in the receiver equipment. Most of the frequency ...

    • A Novel Strategy for Improving the Quality of Embedded Zerotree Wavelet Images Transmitted over Alamouti Coding Systems 

      Labrador, Josmary; Castro-Castro, Paula-María; Pérez-Iglesias, Héctor J.; Dapena, Adriana (Springer, 2011)
      [Abstract] This work deals with the transmission of images, previously coded using the Embedded Zerotree Wavelet (EZW) transform, over wireless systems in which Space-Time Coding (STC) is used. It is shown how the system ...

    • A Prototype of EEG System for IoT 

      Laport López, Francisco; Dapena, Adriana; Castro-Castro, Paula-María; Vázquez Araújo, Francisco Javier; Iglesia, Daniel I. (World Scientific Publishing Co. Pte. Ltd., 2020-05-04)
      [Abstract] In this work, we develop open source hardware and software for eye state classification and integrate it with a protocol for the Internet of Things (IoT). We design and build the hardware using a reduced number ...

    • Adaptación al EEES de las prácticas de Electricidad y Electrónica de la E.T.S. de Náutica y Máquinas de la Universidade da Coruña mediante un diseño basado en competencias 

      Castro-Castro, Paula-María; Dapena, Adriana; García-Naya, José A.; Iglesia, Daniel I. (Universidade de Vigo, Facultade de Ciencias da Educacion, 2010)
      [Summary] The adaptation to the European Higher Education Area (EHEA) of the subject of Electricity and Electronics at the Escuela Técnica Superior de Náutica y Máquinas of the University of A Coruña requires important ...

    • Algorithms for determining relative position between spheroids and hyperboloids with one sheet 

      Castro-Castro, Paula-María; Dapena, Adriana; Souto Salorio, María José; Tarrío-Tobar, Ana D. (Elsevier, 2019-06)
      [Abstract]: In this work we present a new method for determining relative positions between one moving object, modelled by a bounding spheroid, and surrounding static objects, modelled by circular hyperboloids of one sheet. ...

    • Aplicación web para evaluación y seguimiento del rendimiento de asignaturas y titulaciones universitarias 

      Dapena, Adriana; García-Naya, José A.; Castro-Castro, Paula-María; Pan, Christopher (Universidade de Vigo, Facultade de Ciencias da Educacion, 2010)
      [Summary] The adaptation of the university studies to the current European Higher Education Area (EHEA) requires the set up of mechanisms, which allow performance evaluation of the subjects compounding the new university ...

    • Blind channel identification in Alamouti coded systems: a comparative study of eigendecomposition methods in indoor transmissions at 2.4 GHz 

      Pérez-Iglesias, Héctor J.; García-Naya, José A.; Dapena, Adriana; Castedo, Luis; Zarzoso, Vicente (Wiley, 2008)
      [Abstract]: This paper focuses on blind channel estimation in Alamouti coded systems with one receiving antenna working in indoor scenarios where the flat fading assumption is reasonable. A comparative study of several ...

    • Brain-Computer Interfaces for Internet of Things 

      Laport López, Francisco; Vázquez Araújo, Francisco Javier; Castro-Castro, Paula-María; Dapena, Adriana (M D P I AG, 2018-09-17)
      [Abstract] A brain-computer interface for controlling elements commonly used at home is presented in this paper. It includes the electroencephalography device needed to acquire signals associated to the brain activity, the ...

    • Calculation of the Connected Dominating Set Considering Vertex Importance Metrics 

      Vázquez Araújo, Francisco Javier; Dapena, Adriana; Souto Salorio, María José; Castro-Castro, Paula-María (M D P I AG, 2018-01-28)
      [Abstract] The computation of a set constituted by few vertices to define a virtual backbone supporting information interchange is a problem that arises in many areas when analysing networks of different natures, like ...

    • Channel estimation techniques for linear precoded systems: Supervised, unsupervised, and hybrid approaches 

      Castro-Castro, Paula-María; García-Naya, José A.; Dapena, Adriana; Iglesia, Daniel I. (Elsevier, 2011-07)
      [Abstract] Linear precoding is an attractive technique to combat interference in multiple-input multiple-output systems because it reduces cost and power consumption at the receiver. Frequency division duplex systems with ...

    • DASBE: Decision-Aided Semi-Blind Equalization for MIMO Systems with Linear Precoding 

      García-Naya, José A.; Dapena, Adriana; Castro-Castro, Paula-María; Iglesia, Daniel I. (Akademie Ved Ceske Republiky * Ustav Informatiky, 2010)
      [Abstract] Multiple-Input Multiple-Output (MIMO) digital communications standards usually acquire Channel State Information (CSI) by means of supervised algorithms, which implies a loss of performance since pilot symbols ...

    • Detection of channel variations to improve channel estimation methods 

      Dapena, Adriana; Castro-Castro, Paula-María; García-Naya, José A.; Zarzoso, Vicente (Springer, 2014-08)
      [Abstract] In current digital communication systems, channel information is typically acquired by supervised approaches that use pilot symbols included in the transmit frames. Given that pilot symbols do not convey user ...

    • Development of Dual Activities with Micro:Bit for Interventions in People with Cerebral Palsy 

      Molinero-Rodríguez, Ainhoa; Carneiro-Medín, Rubén; Miranda-Duro, María del Carmen; Nieto-Riveiro, Laura; Castro-Castro, Paula-María; Dapena, Adriana (MDPI, 2021-10-12)
      [Abstract] Several studies have shown that video games help to motivate users in different kinds of therapies. Therefore, in this work we developed a tool that includes dual activities for therapy, as well as a data system ...

    • Development of Recreational Content with Micro:Bit for Intervention with People with Cerebral Palsy 

      López Fernández, Alejandro; Carneiro-Medín, Rubén; Pousada, Thais; Groba, Betania; Dapena, Adriana (MDPI, 2020-09-04)
      [Abstract] This paper presents a project carried out to use games in therapies for people with cerebral palsy. A Micro:bit board is used to have a friendly interaction between the user and the game. Through a simple ...

    • Evaluation of H.264/AVC over IEEE 802.11p vehicular networks 

      Rozas-Ramallal, Ismael; Fernández-Caramés, Tiago M.; Dapena, Adriana; García-Naya, José A. (SpringerOpen & European Association for Signal Processing, 2013)
      [Abstract]: The capacity of vehicular networks to offer non-safety services, like infotainment applications or the exchange of multimedia information between vehicles, have attracted a great deal of attention to the field ...

    • Una experiencia de aprendizaje basado en proyectos en Ingeniería Informática 

      Dapena, Adriana; Iglesia, Daniel I.; Castro-Castro, Paula-María; Vázquez Araújo, Francisco Javier (Educación Editora, 2019)
      [Resumen]: El Plan Bolonia ha provocado una profunda reforma de la enseñanza universitaria, no solo en el planteamiento de las titulaciones, sino también en las metodologías docentes y en las técnicas de evaluación, entre ...