Ara es mostren els items 27-46 de 52

    • H2020 project CAPTOR dataset: Raw data collected by low-cost MOX ozone sensors in a real air pollution monitoring network 

      Barceló Ordinas, José María; Ferrer Cid, Pau; García Vidal, Jorge; Viana Rodríguez, Mar; Ripoll, Anna (Elsevier, 2021-06)
      Article
      Accés obert
      The H2020 CAPTOR project deployed three testbeds in Spain, Italy and Austria with low-cost sensors for the measurement of tropospheric ozone (O3). The aim of the H2020 CAPTOR project was to raise public awareness in a ...
    • Impact of the infrastructure in mobile opportunistic networks 

      Trullols Cruces, Óscar; Morillo Pozo, Julián David; Barceló Ordinas, José María (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Epidemic modeling has been used to analyze many disciplines such as biology, ecology and medicine. In the last years, it also has been applied to networking paradigms such as social networks, virus spreading in Internet ...
    • Information dissemination in VANETs: deployment strategies for maximizing coverage 

      Trullols Cruces, Óscar; Barceló Ordinas, José María; Fiore, Marco; Casetti, Claudio; Chiasserini, Carla-Fabiana (2009)
      Comunicació de congrés
      Accés obert
      We consider that a given number of Dissemination Points (DPs) have to be deployed for disseminating information to vehicles travelling in an urban area. We formulate our problem as a Maximum Coverage Problem (MCP) so as ...
    • Information mobility: a new paradigm for wireless content dissemination 

      Barceló Ordinas, José María; Casetti, Claudio; Karlsson, Gunnar; Sargento, Susana (IEEE Computer Society Publications, 2009-09-28)
      Text en actes de congrés
      Accés obert
      Content distribution networks are nowadays becoming a mature technology. Nevertheless, content delivery research in ad hoc networks has dealt with overlay applications, information querying and data broadcasting techniques. ...
    • Machine Learning (ML) module 

      Barceló Ordinas, José María; García Vidal, Jorge; Ferrer Cid, Pau (Universitat Politècnica de Catalunya, 2023-06-27)
      Apunts
      Accés obert
    • Multisensor data fusion calibration in IoT air pollution platforms 

      Ferrer Cid, Pau; Barceló Ordinas, José María; García Vidal, Jorge; Ripoll, Anna; Viana, Mar (2020-04-01)
      Article
      Accés obert
      This article investigates the calibration of low-cost sensors for air pollution. The sensors were deployed on three Internet of Things (IoT) platforms in Spain, Austria, and Italy during the summers of 2017, 2018, and 2019. ...
    • Node clustering based on overlapping FoVs for wireless multimedia sensor networks 

      Alaei, Mohammad; Barceló Ordinas, José María (2010)
      Text en actes de congrés
      Accés obert
      Wireless Multimedia Sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbor sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical sensor ...
    • Non-linear models for black carbon exposure modelling using air pollution datasets 

      Puig Rovira, Josep M.; Paredes Ahumada, Juan Antonio; Barceló Ordinas, José María; García Vidal, Jorge; Reche Andúgar, Cristina; Sola Salvatierra, Yolanda; Fung, Pascale; Petaja, Tuukka; Hussein, Tareq; Viana Rodríguez, Mar (Elsevier, 2022-09-01)
      Article
      Accés obert
      Black carbon (BC) is a product of incomplete combustion, present in urban aerosols and sourcing mainly from road traffic. Epidemiological evidence reports positive associations between BC and cardiovascular and respiratory ...
    • Optimal data compression for lifetime maximization in wireless sensor networks operating in stealth mode 

      Incebacak, Davut; Zilan, Ruken; Tavli, Bulent; Barceló Ordinas, José María; García Vidal, Jorge (Elsevier, 2015-01)
      Article
      Accés obert
      Contextual privacy in Wireless Sensor Networks (WSNs) is concerned with protecting contextual information such as whether, when, and where the data is collected. In this context, hiding the existence of a WSN from adversaries ...
    • Power management in sensing subsystem of wireless multimedia sensor networks 

      Alaei, Mohammad; Barceló Ordinas, José María (InTech — Open Access Company, 2012-03-14)
      Capítol de llibre
      Accés obert
      A wireless sensor network consists of sensor nodes deployed over a geographical area for monitoring physical phenomena like temperature, humidity, vibrations, seismic events, and so on. Typically, a sensor node is a tiny ...
    • Power saving trade-offs in delay/disruptive tolerant networks 

      Trullols Cruces, Óscar; Morillo Pozo, Julián David; Barceló Ordinas, José María; García Vidal, Jorge (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Wireless nodes such as smart-phones in which the WiFi wireless card is continuously on, consume battery energy in just a few hours. Moreover, in many scenarios, an always-on wireless card is useless because there is often ...
    • Priority-based node selection and scheduling for wireless multimedia sensor networks 

      Alaei, Mohammad; Barceló Ordinas, José María (IEEE Computer Society Publications, 2010)
      Text en actes de congrés
      Accés obert
      A critical aspect of applications with wireless sensor networks is network lifetime. Sensing and communications consume energy particularly in wireless multimedia sensor networks (WMSN) due to huge amount of data generated ...
    • Raw data collected from NO2, O3 and NO air pollution electrochemical low-cost sensors 

      Ferrer Cid, Pau; Barceló Ordinas, José María; García Vidal, Jorge (Elsevier, 2022-12)
      Article
      Accés obert
      Recently, the monitoring of air pollution by means of lowcost sensors has become a growing research field due to the study of techniques based on machine learning to improve the sensors’ data quality. For this purpose, ...
    • Real-time multimedia monitoring in large-scale wireless multimedia sensor networks: research challenges 

      Cesana, Matteo; Redondi, Alessandro; Tiglao, Nestor; Grilo, Antonio; Barceló Ordinas, José María; Alaei, Mohammad; Todorova, Petia (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Wireless Sensor Networks (WSNs) have enjoyed dramatic developments over the last decade. The availability of CMOS cameras and microphones enlarged the scope of WSNs paving the way to the development of Wireless Multimedia ...
    • Review of linear algebra and applications to data science 

      Barceló Ordinas, José María; García Vidal, Jorge; Ferrer Cid, Pau (Universitat Politècnica de Catalunya, 2023-07-17)
      Apunts
      Accés obert
    • Review of probability theory 

      Barceló Ordinas, José María; García Vidal, Jorge; Ferrer Cid, Pau (Universitat Politècnica de Catalunya, 2023-07-17)
      Apunts
      Accés obert
    • Robust proxy sensor model for estimating black carbon concentrations using low-cost sensors 

      Paredes Ahumada, Juan Antonio; Ferrer Cid, Pau; Barceló Ordinas, José María; García Vidal, Jorge; Reche Andúgar, Cristina; Viana Rodríguez, Mar (Association for Computing Machinery (ACM), 2023)
      Comunicació de congrés
      Accés obert
      Air quality monitoring sensor networks focusing on air pollution measure pollutants that are regulated by the authorities, such as CO, NO2, NO, SO2, O3, and particulate matter (PM10, PM2.5). However, there are other ...
    • RSU deployment for content dissemination and downloading in intelligent transportation systems 

      Reineri, Massimo; Casetti, Claudio; Chiasserini, Carla-Fabiana; Fiore, Marco; Trullols Cruces, Óscar; Barceló Ordinas, José María (IGI Global, 2012-10-01)
      Capítol de llibre
      Accés restringit per política de l'editorial
    • Sampling trade-offs in duty-cycled systems for air quality low-cost sensors 

      Ferrer Cid, Pau; García Calvete, Julio; Main Nadal, Aina; Ye, Zhe; Barceló Ordinas, José María; García Vidal, Jorge (Multidisciplinary Digital Publishing Institute (MDPI), 2022-05-23)
      Article
      Accés obert
      The use of low-cost sensors in conjunction with high-precision instrumentation for air pollution monitoring has shown promising results in recent years. One of the main challenges for these sensors has been the quality of ...
    • Self-calibration methods for uncontrolled environments in sensor networks: A reference survey 

      Barceló Ordinas, José María; Doudou, Messaoud; García Vidal, Jorge; Badache, Nadjib (Elsevier, 2019-05-15)
      Article
      Accés obert
      Growing progress in sensor technology has constantly expanded the number and range of low-cost, small, and portable sensors on the market, increasing the number and type of physical phenomena that can be measured with ...