• 5G wireless systems: principles, IoT connectivity, and slicing of radio resources 

      Popovski, Petar (2019-06-07)
      In the conference, the landscape of future wireless connectivity is first described. Later, a glimpse into the new radio and standardization is given. New modes in 5G are treated in deep, emphasizing those related to ...
    • A broadband polarization splitter directional coupler based on tilted subwavelengh grating metamaterials 

      Luque-González, José Manuel; Herrero-Bermello, Alaine; Ortega-Moñux, Alejandro; Sánchez-Rodriguez, Marina; Velasco, Aitor V.; [et al.] (2020-12-03)
      Tilted subwavelength gratings (SWG) allows anisotropy tailorable metamaterials with applications in polarization management. Based on this concept, here we experimentally demonstrate a broadband directional-couplerbased ...
    • A Framework to boost the potential of networkin- a-box solutions 

      Baena González, Carlos; Fortes Rodríguez, Sergio; Peñaherrera, Oswaldo; Barco-Moreno, Raquel (2021-10)
      The expected heterogeneous connectivity provided by the fifth generation mobile network (5G) implies a huge revolution in the telecommunication field. Here, virtualisation and software implementation of network elements ...
    • A general approach for robust integrated polarization rotators 

      Alonso-Ramos, C.; Halir, Robert; Ortega-Moñux, Alejandro; Cheben, Pavel; Vivien, Laurent; [et al.] (International Society for Optics and Photonics, 2013)
      Integrated polarization rotators suffer from very high sensitivity to fabrication errors. A polarization rotator scheme that substantially increases fabrication tolerances is proposed. In the proposed scheme, two tunable ...
    • A MATLAB program for the computation of the confluent hypergeometric function Φ2 

      Martos-Naya, Eduardo; Romero-Jerez, Juan Manuel; Lopez-Martinez, F. Javier; Paris-Angel, Jose Francisco (2016-09-22)
      We here present a sample MATLAB program for the numerical evaluation of the confluent hypergeometric function Φ2. This program is based on the calculation of the inverse Laplace transform using the algorithm suggested by ...
    • A New Framework for the Performance Analysis of Wireless Communications under Hoyt (Nakagami-q) Fading 

      Romero-Jerez, Juan Manuel; Lopez-Martinez, F. Javier (IEEE, 2017)
      We present a novel relationship between the distribution of circular and non-circular complex Gaussian random variables. Specifically, we show that the distribution of the squared norm of a non-circular complex Gaussian ...
    • A Physical Layer Model for G3-PLC Networks Simulation 

      Sanz, Alfredo; Sancho, David; Guemes, Cristian; Cortés, José Antonio (IEEE, 2017)
      This work presents a model of the G3-PLC physical (PHY) layer tailored for network simulations. It allows simulating frequency selective channels with non-stationary colored noise. Collisions with other frames are modeled ...
    • A Trip Around Architecture 

      Sliwinski, Jaroslaw (2015-04-17)
      Architecture is a word that often appears during work in research projects. The meaning of word architecture more than often becomes ambiguous, especially when projects deal distributed environment or large amount of data ...
    • Additive manufacturing of rectangular waveguide devices for teaching microwave laboratory 

      Márquez-Segura, Enrique (2019-07-16)
      In this paper the outline of using of low-cost additive manufacturing FDM/FFF technology to build waveguide devices is presented. The focus is set in a full design from specifications to final measurements in a microwave ...
    • Adquisición de métricas en cloud gaming 

      Peñaherrera-Pulla, Oswaldo Sebastián; Baena-González, Jose Carlos; Fortes Rodríguez, Sergio; Baena Martinez, Eduardo; Tranle, Mai; [et al.] (2020-10-08)
      This document presents a Cloud Gaming review and how it works in contrast with the traditional Gaming scenario. Then several platforms that can be used to implement this service are described. Next, it’s exposed the way ...
    • Adquisición de métricas para el servicio de Vídeo 360/VR 

      Peñaherrera-Pulla, Oswaldo Sebastian; Baena, Carlos; Fortes Rodríguez, Sergio; Baena Martínez, Eduardo; Barco-Moreno, Raquel (2021-09)
      Virtual Reality (VR) arises as one of the current cutting-edge technologies. Its applications address educational and entertainment uses. This work presents a framework to assess video 360 service performance over VR ...
    • AFDX networks simulation-based evaluation system 

      Villegas, Javier; Fortes Rodríguez, Sergio; Escaño, Vicente; Baena González, Carlos; Colomer, Benjamín; [et al.] (2021-05)
      Aircraft on-board systems, including navigation equipment, sensors and actuator, among others, present an increasingly demanding requirements on the avionics data communication networks. Moreover, the safety-critical needs ...
    • Algoritmo de control de carga basado en calidad de experiencia en redes LTE 

      Marí-Altozano, María Luisa (2018-09-19)
      El enorme incremento de tráfico y servicios en redes móviles hace que la gestión de las redes haya cambiado su foco de la calidad de servicio (QoS, de sus siglas en inglés) a la calidad de experiencia (QoE). Adicionalmente, ...
    • Algoritmos de planificación del control de potencia y estimación de capacidad en redes LTE 

      Fernández Segovia, José Ángel (Servicio de Publicaciones y Divulgación Científica, 2015)
      Las tareas de planificación son de vital importancia en las redes de comunicaciones móviles. En la etapa de planificación, se realiza el diseño y dimensionado de la red atendiendo a criterios preestablecidos de cobertura, ...
    • Algoritmos de reparto de tráfico en femtoceldas corporativas LTE 

      Ruiz Avilés, José María (Servicio de Publicaciones y Divulgación Científica, 2015)
      En las redes de comunicaciones móviles actuales, la mayor parte de la demanda de tráfico se genera en ubicaciones de interior, donde las condiciones de cobertura son deficientes. Para solventar este problema, se ha propuesto ...
    • Amplificadores de potencia de alta eficiencia 

      Ng Molina, Francisco Yak (2015-01-12)
      The fast growth in modern wireless communication systems has set in motion a never-ending quest for greater capacity and higher data rates in radio access networks. These demands must be met within the existing radio base ...
    • An enhanced symmetric-key based 5G-AKA protocol 

      Munilla, Jorge; Burmester, Mike; Barco, Raquel (Elsevier, 2021)
      5G technology is called to support the next generation of wireless communications and realize the “Internet of Everything” through its mMTC (massive Machine-Type-Communications) service. The recently standardized 5G-AKA ...
    • Análisis de capacidad de redes de acceso radio centralizadas en escenarios heterogéneos 

      Sánchez, Joaquín M.; Gijón Martín, Carolina; Toril-Genoves, Matias; Luna-Ramírez, Salvador; Fernández-Navarro, Mariano (URSI 2021, 2021-09)
      En este trabajo se propone un método de análisis de capacidad para una red de acceso centralizada compuesta por macroceldas y celdas pequeñas. Para ello, se implementa la Coordinación de Interferencia Inter-Celda (ICIC) y ...
    • Análisis de Interferencia Cross-Link sobre un escenario 5G mmWave 

      Tarrías Muñoz, Antonio; Fortes Rodríguez, Sergio; Baena Martínez, Eduardo; Barco Moreno, Raquel (2021-09)
      The use of Time Division Duplex (TDD) has not been fully adopted by operators in LTE networks and its previous generations. In contrast, the fifth generation (5G) is introducing new technical motivations for its use. In ...
    • Análisis de la capacidad ergódica en sistemas cooperativos de comunicaciones ópticas no guiadas 

      Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vazquez, Beatriz; Castillo-Vazquez, Carmen (2015-09-14)
      Ergodic capacity for the bit-detect-and-forward (BDF) cooperative protocol over gamma-gamma fading channels with pointing errors is here analyzed. Novel closed-form approximate ergodic capacity expression is here obtained ...