Now showing items 1-20 of 20

  • A low-cost tracking system for running race applications based on bluetooth low energy technology 

    Pérez Díaz de Cerio, David; Hernandez Solana, Angela; Valdovinos, Antonio; Valenzuela González, José Luis (Multidisciplinary Digital Publishing Institute (MDPI), 2018-03-20)
    Article
    Open Access
    Timing points used in running races and other competition events are generally based on radio-frequency identification (RFID) technology. Athletes’ times are calculated via passive RFID tags and reader kits. Specifically, ...
  • Analytical and experimental performance evaluation of BLE neighbor discovery process including non-idealities of real chipsets 

    Pérez Díaz de Cerio, David; Hernández, Ángela; Valenzuela González, José Luis; Valdovinos, Antonio (MDPI AG, 2017-03-03)
    Article
    Open Access
    The purpose of this paper is to evaluate from a real perspective the performance of Bluetooth Low Energy (BLE) as a technology that enables fast and reliable discovery of a large number of users/devices in a short period ...
  • Anti-collision adaptations of BLE active scanning for dense IoT tracking applications 

    Hernandez Solana, Angela; Pérez Díaz de Cerio, David; Valdovinos, Antonio; Valenzuela González, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018-09-15)
    Article
    Open Access
    Bluetooth low energy (BLE) is one of most promising technologies to enable the Internet-of-Things (IoT) paradigm. The BLE neighbor discovery process (NDP) based on active scanning may be the core of multiple IoT applications ...
  • Audit of a real Wi-Fi deployment to provide data, VoIP communications and an IIoT item location service 

    Pérez Díaz de Cerio, David; Valenzuela González, José Luis; García Lozano, Mario (Academy Publisher, 2017-10-17)
    Article
    Restricted access - publisher's policy
    As the number of Access Points and stations sharing the unlicensed ISM (Industrial Scientific Medical) bands increases, interference diminishes the theoretical performance of 802.11 standard. This paper presents results ...
  • A wireless sensor network design for the Help4Mood european project 

    Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia; Rosell Ferrer, Francisco Javier; Ramos Castro, Juan José; Castro Robles, Joan Carles (VDE Conference Publications, 2012)
    Conference report
    Restricted access - publisher's policy
    Help4Mood is a closed loop approach supporting the control, communication and treatment management of patients with Major Depression. The first out of the three main components of the Help4Mood solution is the Personal ...
  • Bluetooth Low Energy sensor networks for railway applications 

    Hernandez Solana, Angela; Valdovinos, Antonio; Pérez Díaz de Cerio, David; Valenzuela González, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Open Access
    This paper analyzes the viability of Bluetooth Low Energy (BLE) as the enabling technology in railway scenarios to allow sensor data transmission from ground to train. This proposal is based on using the broadcasting ...
  • Help4Mood: a computational distributed system to support the treatment of patients with major depression 

    Pérez Díaz de Cerio, David; Valenzuela González, José Luis; Ruiz Boqué, Sílvia; García Lozano, Mario; Colomé, Josep Maria (2011)
    Conference report
    Restricted access - publisher's policy
    A closed loop approach supporting the control, communication and treatment management of patients with Major Depression is presented, based on a distributed system with three main components: a Personal Monitoring System, ...
  • Help4Mood personal monitoring system: management of interoperatibilty in a wireless home for mental health treatment 

    Castro, Juan Carlos; Estevez, Soraya; Aragonés, Carlos; Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia (2012)
    Conference report
    Restricted access - publisher's policy
    Help4Mood is a project inside 7th European Framework Programme (FP7) for developing a computational distributed system to support remotely the treatment of patients with major depression at home. Core components are ...
  • Help4Mood: testing and achievements of the first wireless sensor network prototype 

    Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia; Rosell Ferrer, Francisco Javier; Ramos Castro, Juan José; Colomé Castellví, Josep Maria (2012)
    Conference report
    Restricted access - publisher's policy
    Help4Mood is a closed loop approach supporting the control, communication and treatment management of patients with Major Depression. The first out of the three main components of the Help4Mood solution is the Personal ...
  • Interoperability and sensor communications in Help4Mood: Personal monitoring system to support the treatment of depression 

    Estevez Cruz, Soraya; Aragones, Carlos; Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia (IADIS Press, 2013)
    Conference report
    Restricted access - publisher's policy
    Help4Mood aims to develop a platform to support the treatment of people with depression in their own home. Depression is one of the main causes of disability worldwide. For depression, it is essential to have a continuous ...
  • La evaluación en PBL: un caso práctico 

    García Lozano, Mario; Pérez Díaz de Cerio, David; Valenzuela González, José Luis; Gelonch Bosch, Antonio José; Alonso Zárate, Luis Gonzaga; Ruiz Boqué, Sílvia (2008)
    Conference report
    Restricted access - publisher's policy
    Las ventajas de estructurar una asignatura, un conjunto o incluso todo un plan de estudios mediante Aprendizaje Basado en Proyectos (PBL) han sido ampliamente expuestas de forma teórica y práctica ...
  • LTE UL power control evaluation in a system level simulator for synthetic and realistic scenarios 

    Lema, Maria A.; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José; Pérez Díaz de Cerio, David (2011)
    Conference report
    Restricted access - publisher's policy
    The research involved in this study comprises the analysis of the impact of the power control algorithm and its performance in the system level. Following our work in TD 01040, the LTE system level simulator has been ...
  • Multipolling and OFDMA Reservation Protocol for IEEE 802.11 Networks 

    Pérez Díaz de Cerio, David; Valenzuela González, José Luis; Villares Piera, Nemesio Javier (Institute of Electrical and Electronic Engineers, 2009)
    Conference report
    Open Access
    This paper presents an efficient multipolling scheme that improves the IEEE 802.11 MAC protocol efficiency and does not suffer from the hidden terminal problem or inefficient channel usage problems. To design an efficient ...
  • Proposal and evaluation of BLE discovery process based on new features of bluetooth 5.0 

    Hernandez Solana, Angela; Pérez Díaz de Cerio, David; Valdovinos, Antonio; Valenzuela González, José Luis (MDPI AG, 2017-09-01)
    Article
    Open Access
    The device discovery process is one of the most crucial aspects in real deployments of sensor networks. Recently, several works have analyzed the topic of Bluetooth Low Energy (BLE) device discovery through analytical or ...
  • Provisioning vehicular services and communications based on a bluetooth sensor network deployment 

    Pérez Díaz de Cerio, David; Valenzuela González, José Luis (2015-06-01)
    Article
    Open Access
    It is very common to rule out Bluetooth as a suitable technology for vehicular communications. The reasons behind this decision usually result from misconceptions such as accepting that Bluetooth has a short application ...
  • Research activities at WiComTec-UPC research group 

    Ruiz Boqué, Sílvia; García Lozano, Mario; Pérez Díaz de Cerio, David; Valenzuela González, José Luis; Olmos Bonafé, Juan José; Alonso Zárate, Luis Gonzaga; Joud, Mohammad (2016)
    Conference report
    Restricted access - publisher's policy
    This paper is an introduction of the main research activities in which the Wireless Communications and Technologies research group (WiComTec-UPC) is involved now or has planned for the next years, oriented to disseminate ...
  • Simulation of LTE IR H-ARQ at system level using MIESM error prediction 

    Olmos Bonafé, Juan José; Serra, Albert; García Lozano, Mario; Ruiz Boqué, Sílvia; Pérez Díaz de Cerio, David (2011)
    Conference report
    Restricted access - confidentiality agreement
  • Survey of WBSNs for pre-hospital assistance: trends to maximize the network lifetime and video transmission techniques 

    Gonzalez, Enrique; Peña, Raul; Vargas Rosales, Cesar; Avila, Alfonso; Pérez Díaz de Cerio, David (2015-05-22)
    Article
    Open Access
    This survey aims to encourage the multidisciplinary communities to join forces for innovation in the mobile health monitoring area. Specifically, multidisciplinary innovations in medical emergency scenarios can have a ...
  • The help4mood wearable sensor network for inconspicuous activity measurement 

    Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia; Rosell Ferrer, Francisco Javier; Ramos Castro, Juan José; Valenzuela González, José Luis; Colomé Castellví, Josep Maria (2013-08)
    Article
    Restricted access - publisher's policy
    The Help4Mood EU FP7 project (H4M) [1] proposes to significantly advance the state-ofthe-art in computerized support for people with Major Depression by monitoring mood, physical activity and voice characteristics while ...
  • Trimming the power consumption of domestic Wi-Fi networks: how much power does your router need? 

    Pérez Díaz de Cerio, David; González Rodríguez, Marta; Valenzuela González, José Luis; González Arbesú, José María (2015)
    Conference report
    Restricted access - publisher's policy
    This work is part of a project where the goals are: designing energetically-optimum domestic WiFi routers; obtaining real and accurate power consumed models as a function of router configuration, and providing the ...