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Ara es mostren els items 21-40 de 45

    • FONAMENTS DE COMUNICACIONS (Examen parcial, 1r quadrimestre) 

      Sánchez González, Juan; Pérez Díaz de Cerio, David (Universitat Politècnica de Catalunya, 2021-10-29)
      Examen
      Accés restringit a la comunitat UPC

    • FONAMENTS DE COMUNICACIONS (Examen parcial, 2n quadrimestre) 

      Sánchez González, Juan; Pérez Díaz de Cerio, David (Universitat Politècnica de Catalunya, 2023-04-17)
      Examen
      Accés restringit a la comunitat UPC

    • FONAMENTS DE COMUNICACIONS primavera 2022 (Examen parcial, 2n quadrimestre) 

      Sánchez González, Juan; Pérez Díaz de Cerio, David (Universitat Politècnica de Catalunya, 2022-04-22)
      Examen
      Accés restringit a la comunitat UPC

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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: 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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: 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
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      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 ...

    • Low-cost test measurement setup for real IoT BLE sensor device characterization 

      Pérez Díaz de Cerio, David; Hernandez Solana, Angela; Valdovinos, Antonio; Olmos Bonafé, Juan José; Valenzuela González, José Luis (2019-03-01)
      Article
      Accés obert
      The methodology presented in this paper aims to characterize impairments shown by real devices which are usually neglected on standardized tests but that become very important in massive IoT scenarios. For instance, we ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés obert
      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 ...

    • On the use of sniffers for spectrum occupancy measurements of Bluetooth low energy primary channels 

      Valenzuela Pérez, Ana; García Lozano, Mario; Valenzuela González, José Luis; Pérez Díaz de Cerio, David; Hernandez Solana, Angela; Valdovinos, Antonio (Elsevier, 2022-08-01)
      Article
      Accés obert
      The methods usually employed to measure channel occupancy show limitations in the context of Bluetooth Low Energy (BLE) advertisements. We propose and analyze the use of BLE sniffers as light and portable low-cost spectrum ...

    • 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
      Accés obert
      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
      Accés obert
      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 ...

    • PSM-DMO: power save mode and discontinuous BLE mesh operation 

      Hernandez Solana, Angela; Pérez Díaz de Cerio, David; García Lozano, Mario; Valdovinos, Antonio; Valenzuela González, José Luis (2022-08-04)
      Article
      Accés obert
      The Bluetooth Low Energy (BLE) mesh profile, standardized by the Bluetooth Special Interest Group (SIG), has an increasing interest in IoT solutions. However, the standard assumes that relay and friend nodes should be ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés restringit per acord de confidencialitat

    • Speeding up bluetooth mesh 

      Pérez Díaz de Cerio, David; Hernandez Solana, Angela; García Lozano, Mario; Valdovinos Bardají, Antonio; Valenzuela González, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      Bluetooth has constantly evolved from its cradle in 1997 to the last 5.2 version in 2020. With each update and amendment, it has gained in speed, range, and versatility. One of the latest introductions was the Bluetooth ...

    • STCSC-OT: Control: primavera 2019 

      García Lozano, Mario; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Pérez Díaz de Cerio, David; Spadaro, Salvatore; Tarrés Ruiz, Francisco (Universitat Politècnica de Catalunya, 2019-03-20)
      Examen
      Accés restringit a la comunitat UPC

    • STCSC-OT: Control: primavera 2019 

      García Lozano, Mario; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Pérez Díaz de Cerio, David; Spadaro, Salvatore; Tarrés Ruiz, Francisco (Universitat Politècnica de Catalunya, 2019-05-08)
      Examen
      Accés restringit a la comunitat UPC