Now showing items 1-20 of 65

    • Thumbnail

      A Framework for Vulnerability Detection in European Train Control Railway Communications 

      Arsuaga Oria, Irene; Toledo Gandarias, Nerea; López, Igor; Aguado Castrillo, Marina (Wiley Hindawi, 2018)
      Railway systems have evolved considerably in the last years with the adoption of new communication technologies. Aiming to achieve a single European railway network, the European Rail Traffic Management System (ERTMS) ...
    • Thumbnail

      A New Method for Feedback on the Quality of Chest Compressions during Cardiopulmonary Resuscitation 

      González-Otero, Digna María; Ruiz Ojeda, Jesús María; Ruiz de Gauna Gutiérrez, Sofía; Irusta Zarandona, Unai; Ayala Fernández, Unai; Alonso González, Erik (Hindawi Publishing, 2014)
      Quality of cardiopulmonary resuscitation (CPR) improves through the use of CPR feedback devices. Most feedback devices integrate the acceleration twice to estimate compression depth. However, they use additional sensors ...
    • Thumbnail

      A Novel Scheduling Index Rule Proposal for QoE Maximization in Wireless Networks 

      Taboada Puente, Ianire; Liberal Malaina, Fidel (Hindawi Publishing, 2014)
      This paper deals with the resource allocation problem aimed at maximizing users' perception of quality in wireless channels with time-varying capacity. First of all, we model the subjective quality-aware scheduling problem ...
    • Thumbnail

      A Reliable Method for Rhythm Analysis during Cardiopulmonary Resuscitation 

      Ayala Fernández, Unai; Irusta Zarandona, Unai; Ruiz Ojeda, Jesús María; Eftestol, T.; Kramer-Johansen, J.; Alonso-Atienza, F.; Alonso Ruiz de Erenchun, Estibaliz; González Otero, Digna María (Hindawi Publishing, 2014)
      nterruptions in cardiopulmonary resuscitation (CPR) compromise defibrillation success. However, CPR must be interrupted to analyze the rhythm because although current methods for rhythm analysis during CPR have high ...
    • Thumbnail

      A Robust Optimization Based Energy-Aware Virtual Network Function Placement Proposal for Small Cell 5G Networks with Mobile Edge Computing Capabilities 

      Blanco Jauregui, Begoña; Taboada Puente, Ianire; Fajardo Portillo, José Oscar; Liberal Malaina, Fidel (Hindawi, 2017)
      In the context of cloud-enabled 5G radio access networks with network function virtualization capabilities, we focus on the virtual network function placement problem for a multitenant cluster of small cells that provide ...
    • Thumbnail

      A Survey on the Contributions of Software-Defined Networking to Traffic Engineering 

      Mendiola, Alaitz; Astorga Burgo, Jasone; Jacob Taquet, Eduardo Juan; Higuero Aperribay, María Victoria (IEEE, 2017-05-31)
      Since the appearance of OpenFlow back in 2008, software-defined networking (SDN) has gained momentum. Although there are some discrepancies between the standards developing organizations working with SDN about what SDN is ...
    • Thumbnail

      A Temperature Sensor Based on a Polymer Optical Fiber Macro-Bend 

      Tapetado Moraleda, Alberto; Vázquez García, Carmen; Zubia Zaballa, Joseba Andoni; Arrue Aramburu, Juan Antonio (MDPI, 2013-10)
      The design and development of a plastic optical fiber (POF) macrobend temperature sensor is presented. The sensor has a linear response versus temperature at a fixed bend radius, with a sensitivity of 1.92.10(-3) (degrees ...
    • Thumbnail

      A uniform phase representation for the harmonic model in speech synthesis applications 

      Degottex, Gilles; Erro Eslava, Daniel (Springer International Publishing, 2014-10-16)
      Feature-based vocoders, e.g., STRAIGHT, offer a way to manipulate the perceived characteristics of the speech signal in speech transformation and synthesis. For the harmonic model, which provide excellent perceived quality, ...
    • Thumbnail

      Accurate Strain Sensing Based On Super-Mode Interference In Strongly Coupled Multi-Core Optical Fibres 

      Villatoro Bernardo, Agustín Joel; Arrizabalaga Uriarte, Oskar; Durana Apaolaza, Gaizka; Antonio-Lopez, Enrique; Zubia Zaballa, Joseba Andoni; Schülzgen, Axel; Amezcua-Correa, Rodrigo (Nature Publishing Group, 2017-06-30)
      We report on the use of a multi-core fibre (MCF) comprising strongly-coupled cores for accurate strain sensing. Our MCF is designed to mode match a standard single mode optical fibre. This allows us to fabricate simple MCF ...
    • Thumbnail

      An architecture for dynamic QoS management at Layer 2 for DOCSIS access networks using OpenFlow 

      Huarte Arrayago, Maider; Mendiola, Alaitz; Fuentes, Victor; Matías Fraile, Jon; Astorga Burgo, Jasone; Toledo Gandarias, Nerea; Jacob Taquet, Eduardo Juan (Elsevier, 2016-01-15)
      Over the last few years, Software-Defined Networking (SDN) has emerged as one of the most disruptive and profitable novelties in networking. SDN was originally conceived to improve performance and reduce costs in Ethernet-based ...
    • Thumbnail

      An Architecture for On-Line Measurement of the Tip Clearance and Time of Arrival of a Bladed Disk of an Aircraft Engine 

      Gil-García Leiva, José Miguel; Solís Martínez, Alejandro; Aranguren Aramendia, Gerardo; Zubia Zaballa, Joseba Andoni (MDPI, 2017-10)
      Safety and performance of the turbo-engine in an aircraft is directly affected by the health of its blades. In recent years, several improvements to the sensors have taken place to monitor the blades in a non-intrusive ...
    • Thumbnail

      An on-line VAD based on Multi-Normalisation Scoring (MNS) of observation likelihoods 

      Odriozola Sustaeta, Igor; Hernaez Rioja, Inmmaculada Concepción; Navas Cordón, Eva (Elsevier Ltd., 2018-05-31)
      Voice activity detection (VAD) is an essential task in expert systems that rely on oral interfaces. The VAD module detects the presence of human speech and separates speech segments from silences and non-speech noises. The ...
    • Thumbnail

      An Optical Fiber Bundle Sensor for Tip Clearance and Tip Timing Measurements in a Turbine Rig 

      García Esteban-Barcina, Iker; Beloki Perurena, Josu; Zubia Zaballa, Joseba Andoni; Aldabaldetreku Etxeberria, Gotzon; Illarramendi Leturia, María Asunción; Jiménez Hernández, Felipe (MDPI, 2013-06)
      When it comes to measuring blade-tip clearance or blade-tip timing in turbines, reflective intensity-modulated optical fiber sensors overcome several traditional limitations of capacitive, inductive or discharging probe ...
    • Thumbnail

      Analysis of the Channel Influence to Power Line Communications Based on ITU-T G.9904 (PRIME) 

      Llano, Asier; Angulo Pita, Itziar; Angueira Buceta, Pablo; Arzuaga, Txetxu; De la Vega Moreno, David (MDPI, 2016-01)
      ITU-T G.9904 standard, also known as PoweRline Intelligent Metering Evolution (PRIME), is a Power Line Communications standard for advanced metering, grid control and asset monitoring defined by the International ...
    • Thumbnail

      Analytical efficiency evaluation of a network mobility management protocol for Intelligent Transportation Systems 

      Toledo Gandarias, Nerea; Higuero Aperribay, María Victoria; Astorga Burgo, Jasone; Aguado Castrillo, Marina; Lagrange, Xavier (Springer, 2012)
      One of the major concerns in an Intelligent Transportation System (ITS) scenario, such as that which may be found on a long-distance train service, is the provision of efficient communication services, satisfying users' ...
    • Thumbnail

      Application of entropy-based features to predict defibrillation outcome in cardiac arrest 

      Chicote Gutiérrez, Beatriz; Irusta Zarandona, Unai; Alcaraz, Raúl; Rieta, José Joaquín; Aramendi Ecenarro, Elisabete; Isasi Liñero, Iraia; Alonso, Daniel; Ibarguren Olalde, Karlos (MDPI, 2016-08)
      Prediction of defibrillation success is of vital importance to guide therapy and improve the survival of patients suffering out-of-hospital cardiac arrest (OHCA). Currently, the most efficient methods to predict shock ...
    • Thumbnail

      Aspects of quality control of wind profiler measurements in complex topography 

      Maruri Machado, María de las Mercedes; Romo Argota, Juan Antonio; Gomez, L. (Copernicus Gesellschaft, 2014)
      It is well known in the scientific community that some remote sensing instruments assume that sample volumes present homogeneous conditions within a defined meteorological profile. At complex topographic sites and under ...
    • Thumbnail

      Characterisation of Exposure to Non-Ionising Electromagnetic Fields in the Spanish INMA Birth Cohort: Study Protocol 

      Gallastegi Bilbao, Mara; Guxens, Mónica; Jiménez Zabala, Ana María; Calvente, Irene; Fernández Andrés, Marta; Birks, Laura; Struchen, Benjamin; Vrijheid, Martine; Estarlich, Marisa; Fernández, Mariana F.; Torrent, Maties; Ballester, Ferran; Aurrekoetxea Agirre, Juan José; Ibarluzea Maurolagoitia, Jesús María; Guerra Pereda, David; González Estévez, Julián María; Röösli, Martin; Santa Marina, Loreto (Biomed Central, 2016-02-18)
      Background: Analysis of the association between exposure to electromagnetic fields of non-ionising radiation (EMF-NIR) and health in children and adolescents is hindered by the limited availability of data, mainly due to ...
    • Thumbnail

      Characterization of Chromatic Dispersion and Refractive Index of Polymer Optical Fibers 

      Ayesta Ereño, Igor; Zubia Zaballa, Joseba Andoni; Arrue Aramburu, Juan Antonio; Illarramendi Leturia, María Asunción; Azkune Ulla, Mikel (MDPI, 2017-12-20)
      The chromatic dispersion and the refractive index of poly(methyl methacrylate) polymer optical fibers (POFs) have been characterized in this work by using a tunable femtosecond laser and a Streak Camera. The characterization ...
    • Thumbnail

      Crank-Nicholson method for rate equations in powder random lasers 

      García Ramiro, María Begoña; Illarramendi Echave, María Aránzazu; Zubia Zaballa, Joseba Andoni (IOP Publishing, 2015)
      In this work, we show the resolution of the rate equations in powder random lasers by using the Crank-Nicholson finite difference method. Light propagation in our powders is described by the model of light diffusion. The ...