Listar GI-GTEC - Artigos por título

Mostrando ítems 93-112 de 189

    • 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 ...

    • Experimental Characterization of LTE Wireless Links in High-Speed Trains 

      Domínguez-Bolaño, Tomás; Rodríguez Piñeiro, José; García-Naya, José A.; Castedo, Luis (Hindawi, 2017)
      [Abstract]: Multimedia and data-based services experienced a nonstopping growth over the last few years. People are continuously on the move using devices to access multimedia contents or other data-based services. Due to ...

    • Experimental evaluation in wireless communications 

      García-Naya, José A.; Heath, Robert W.; Kaltenberger, Florian; Rupp, Markus; Vía, Javier (SpringerOpen & European Association for Signal Processing, 2017)
      [Abstract]: This editorial sums up relevant topics on the assessment of wireless communication systems covered by the especial issue entitled “Experimental Evaluation in Wireless Communications.” The topics include practical ...

    • Experimental Evaluation of Flexible Duplexing in Multi-Tier MIMO Networks 

      Fanjul, Jacobo; Fernández, Renzo D.; Ibáñez, Jesús; García-Naya, José A.; Santamaría, Ignacio (SpringerOpen, 2020-09-24)
      [Abstract] In this paper, we present an experimental evaluation of the performance benefits provided by flexible duplexing, an access technique that allows uplink and downlink cells to coexist within the same time-frequency ...

    • Experimental evaluation of interference alignment for broadband WLAN systems 

      Lameiro, Christian; González Fernández, Óscar; García-Naya, José A.; Santamaría, Ignacio; Castedo, Luis (SpringerOpen & European Association for Signal Processing, 2015)
      [Abstract]: In this paper, we present an experimental study on the performance of spatial interference alignment (IA) in indoor wireless local area network scenarios that use orthogonal frequency division multiplexing ...

    • Experimental evaluation of the WiMAX downlink physical layer in high-mobility scenarios 

      Suárez-Casal, Pedro; Rodríguez Piñeiro, José; García-Naya, José A.; Castedo, Luis (SpringerOpen & European Association for Signal Processing, 2015)
      [Abstract]: The experimental evaluation of the WiMAX downlink physical layer in high-mobility scenarios is extremely difficult to carry out because it requires the realization of measurement campaigns with expensive ...

    • Exploratory Research on Sweetness Perception: Decision Trees to Study Electroencephalographic Data and Its Relationship with the Explicit Response to Sweet Odor, Taste, and Flavor 

      Romeo-Arroyo, Elena; Soria, Javier; Mora, María; Laport López, Francisco; Moreno-Fernandez-de-Leceta, Aitor; Vázquez-Araújo, Laura (Multidisciplinary Digital Publishing Institute (MDPI), 2022)
      Using implicit responses to determine consumers’ response to different stimuli is becoming a popular approach, but research is still needed to understand the outputs of the different technologies used to collect data. ...

    • Eye State Detection Using Frequency Features from 1 or 2-Channel EEG 

      Laport López, Francisco; Dapena, Adriana; Castro-Castro, Paula-María; Iglesia, Daniel I.; Vázquez Araújo, Francisco Javier (World Scientific Publishing, 2023)
      [Abstract]: Brain–computer interfaces (BCIs) establish a direct communication channel between the human brain and external devices. Among various methods, electroencephalography (EEG) stands out as the most popular choice ...

    • Eye State Identification Based on Discrete Wavelet Transforms 

      Laport López, Francisco; Castro-Castro, Paula-María; Dapena, Adriana; Vázquez Araújo, Francisco Javier; Fresnedo, Óscar (MDPI, 2021)
      [Abstract]: We present a prototype to identify eye states from electroencephalography signals captured from one or two channels. The hardware is based on the integration of low-cost components, while the signal processing ...

    • Fake News, Disinformation, and Deepfakes: Leveraging Distributed Ledger Technologies and Blockchain to Combat Digital Deception and Counterfeit Reality 

      Fraga-Lamas, Paula; Fernández-Caramés, Tiago M. (IEEE, 2020-03)
      [Absctract]: The rise of ubiquitous deepfakes, misinformation, disinformation, and post-truth, often referred to as fake news, raises concerns over the role of the Internet and social media in modern democratic societies. ...

    • FDD Channel Estimation Via Covariance Estimation in Wideband Massive MIMO Systems 

      González-Coma, José P.; Suárez-Casal, Pedro; Castro-Castro, Paula-María; Castedo, Luis (M D P I AG, 2020-02-10)
      [Abstract] A method for channel estimation in wideband massive Multiple-Input Multiple-Output systems using hybrid digital analog architectures is developed. The proposed method is useful for Frequency-Division Duplex at ...

    • Fine Time Measurement for the Internet of Things: A Practical Approach Using ESP32 

      Barral Vales, Valentín; Campos Fernández, Omar; Domínguez-Bolaño, Tomás; Escudero, Carlos J.; García-Naya, José A. (Institute of Electrical and Electronics Engineers Inc. (IEEE), 2022)
      [Abstract]: In the world of Internet of Things (IoT), obtaining the physical location of devices has always been a task of great interest for developing increasingly complex location-based services (LBS). That is why in ...

    • From Pre-Quantum to Post-Quantum IoT Security: A Survey on Quantum-Resistant Cryptosystems for the Internet of Things 

      Fernández-Caramés, Tiago M. (IEEE, 2020)
      [Absctract]: Although quantum computing is still in its nascent age, its evolution threatens the most popular public-key encryption systems. Such systems are essential for today's Internet security due to their ability for ...

    • Green IoT and Edge AI as Key Technological Enablers for a Sustainable Digital Transition towards a Smart Circular Economy: An Industry 5.0 Use Case 

      Fraga-Lamas, Paula; Lopes, Sérgio Ivan; Fernández-Caramés, Tiago M. (MDPI, 2021)
      [Abstract] Internet of Things (IoT) can help to pave the way to the circular economy and to a more sustainable world by enabling the digitalization of many operations and processes, such as water distribution, preventive ...

    • Home Automation System Based on Intelligent Transducer Enablers 

      Suárez-Albela, Manuel; Fraga-Lamas, Paula; Fernández-Caramés, Tiago M.; Dapena, Adriana; González-López, Miguel (Multidisciplinary Digital Publishing Institute, 2016)
      [Abstract], This paper presents a novel home automation system named HASITE (Home Automation System based on Intelligent Transducer Enablers), which has been specifically designed to identify and configure transducers ...

    • 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 LISA for Wideband Multiuser Millimeter-Wave Communication Systems Under Beam Squint 

      González-Coma, José P.; Utschick, Wolfgang; Castedo, Luis (IEEE, 2019-02)
      [Abstract]: This paper jointly addresses user scheduling and precoder/combiner design in the downlink of a wideband millimeter-wave communications system. We consider the orthogonal frequency-division multiplexing modulation ...

    • Hybrid Precoding With Time-Modulated Arrays for Mmwave MIMO Systems 

      González-Coma, José P.; Maneiro-Catoira, Roberto; Castedo, Luis (Institute of Electrical and Electronics Engineers, 2018)
      [Abstract]: We consider the utilization of time-modulated arrays (TMAs) as a simple and cost-effective approach to hybrid digital–analog precoding in millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems. ...

    • 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) ...

    • Impact of Time-Modulated Arrays on the BER of Linear Digital Modulations 

      Maneiro-Catoira, Roberto; Brégains, Julio; García-Naya, José A.; Castedo, Luis (Taylor & Francis, 2015-08-21)
      [Abstract] Time modulation provides a simple way to control the power radiation pattern of an antenna array. By appropriately selecting the parameters of a Time-Modulated Array (TMA) it is possible to obtain a reconfigurable ...