Now showing items 1-20 of 23

    • A LoRa-Based communication system for coordinated response in an earthquake Aftermath 

      Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc; Navarro Moldes, Leandro; Ochoa, Sergio; Santos, Rodrigo M. (MDPI, 2019)
      Conference report
      Open Access
      The response conducted by emergency units after natural disasters, such as earthquakes, has to be coordinated, fast, and efficient in order to rescue and care for the victims, keeping all the population—and the units ...
    • A minimalistic distance-vector routing protocol for LoRa mesh networks 

      Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc; Navarro Moldes, Leandro (2021-06-15)
      Research report
      Open Access
      LoRa has gained traction in the Internet of Things (IoT) domain as a Low Power, Wide Area Network(LPWAN) radio technology, providing low-power and long-range communication in the sub-GHz band. Most often it is used as part ...
    • A monitoring system for distributed edge infrastructures with decentralized coordination 

      Pueyo Centelles, Roger; Selimi, Mennan; Freitag, Fèlix; Navarro Moldes, Leandro (Springer, 2019)
      Conference report
      Open Access
      We present the case of monitoring a decentralized and crowdsourced network infrastructure, that needs to be monitored over geographically distributed devices at the network edge. It is a characteristic of the target ...
    • An IoT-based infrastructure to enhance self-evacuations in natural hazardous events 

      Finochietto, José Mariano; Micheletto, Matías; Eggly, Gabriel M.; Pueyo Centelles, Roger; Santos, Rodrigo; Ochoa, Sergio F.; Meseguer Pallarès, Roc; Orozco, Javier (2022)
      Article
      Open Access
      Regardless of the extensive research conducted on large-scale evacuations, the instrumentation of these processes still represents an open issue for first response organizations. Self-evacuation of civilians that follows ...
    • Beyond the star of stars: An introduction to multihop and mesh for LoRa and LoRaWAN 

      Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc; Navarro Moldes, Leandro (2021-04)
      Article
      Open Access
      LoRa has emerged in recent years as a wireless technology providing long-range communication for low-power Internet-of-Things (IoT) devices. The LoRaWAN architecture adds the medium access control (MAC) and application ...
    • Building microclouds at the network edge with the Cloudy platform 

      Freitag, Fèlix; Pueyo Centelles, Roger; Navarro Moldes, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      Edge computing enables new types of services which operate at the network edge. There are important use cases in pervasive computing, ambient intelligence and the Internet of Things (IoT) for edge computing. In this demo ...
    • Community network clouds as a case for the IEEE Intercloud standardization 

      Baig Viñas, Roger; Freitag, Fèlix; Moll, Agustí; Navarro Moldes, Leandro; Pueyo Centelles, Roger; Vlassov, Vladimir (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      The IEEE P2302 Intercloud WG conducts work since 2011 on the project Standard for Intercloud Interoperability and Federation with the goal to define a standard architecture and building components for large-scale ...
    • Demonstration of a library prototype to build LoRa mesh networks for the IoT 

      Miquel Solé, Joan; Miralles Nogués, Sergi; Pueyo Centelles, Roger; Freitag, Fèlix (2022-02)
      Research report
      Open Access
      LoRa has become popular in the Internet of Things (IoT) domain as a Low Power, Wide Area Network (LPWAN) radio technology providing low-power and long-range communi- cation. In a typical IoT application, the LoRaWAN ...
    • Demonstration of a library prototype to build LoRa mesh networks for the IoT 

      Miquel Solé, Joan; Miralles Nogués, Sergi; Pueyo Centelles, Roger; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Conference report
      Open Access
      LoRa has become popular in the Internet of Things (IoT) domain as a Low Power, Wide Area Network (LPWAN) radio technology providing low-power and long-range communication. In a typical IoT application, the LoRaWAN architecture ...
    • DIMON: Distributed Monitoring System for decentralized edge clouds in Guifi.net 

      Pueyo Centelles, Roger; Selimi, Mennan; Freitag, Fèlix; Navarro Moldes, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Community-built telecommunication networks such as Guifi.net demonstrate how end users can actively collaborate in the self-provision of network services, for instance by operating a self-organized distributed monitoring ...
    • Enabling multi-tenant cellular IoT services over LEO constellations in future 6G networks 

      Kellermann, Timo Nicolas; Calveras Augé, Anna M.; Pueyo Centelles, Roger; Camps, Dani; Ferrús Ferré, Ramón Antonio; Guadalupi, Marco (International Astronautical Federation, 2022)
      Conference report
      Restricted access - publisher's policy
      Satellite-based, non-terrestrial networks (NTN) are crucial in providing global connectivity coverage, supporting important use cases in future 3rd Generation Partnership Project (3GPP) 6th generation networks (6G). Existing ...
    • End user-managed service deployments in microclouds at the network edge 

      Freitag, Fèlix; Navarro Moldes, Leandro; Selimi, Mennan; Pueyo Centelles, Roger (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Cloud computing is moving from data centers to the network edge. Edge computing introduces lightweight computing devices closer to where data are produced. Local processing enables faster response times for cloud-based ...
    • Extending LoRa networks: dynamic routing protocols and sub-GHz radio technology for very long range mesh networks: student research abstract 

      Pueyo Centelles, Roger (Association for Computing Machinery (ACM), 2019)
      Conference report
      Restricted access - publisher's policy
      Sub-GHz radio technologies operating in ISM bands, such as LoRa 1 , have become very popular as the wireless data transmission mechanism for IoT applications. Their great link budget allows nodes to reach several km while ...
    • Implementation of a LoRa Mesh library 

      Miquel Solé, Joan; Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc (Institute of Electrical and Electronics Engineers (IEEE), 2022-10-26)
      Article
      Open Access
      LoRa is a popular communication technology in the Internet of Things (IoT) domain, providing low-power and long-range communications. Most LoRa IoT applications use the LoRaWAN architecture, which builds a star topology ...
    • LoRaMoto: a communication system to provide safety awareness among civilians after an earthquake 

      Pueyo Centelles, Roger; Meseguer Pallarès, Roc; Freitag, Fèlix; Navarro Moldes, Leandro; Ochoa, Sergio; Santos, Rodrigo (Elsevier, 2021-02)
      Article
      Open Access
      Civilians in areas hit by earthquakes become in particular concerned about the safety of family and friends. However, outages in communications networks following these events limit their capacity to get information. So, ...
    • LoRaMoto: a LoRa-based communication system for coordinated response in an earthquake aftermath (excerpt) 

      Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc; Navarro Moldes, Leandro (2019-07-26)
      Research report
      Open Access
      Response of emergency units after natural disasters, such as earthquakes, has to be coordinated, fast and efficient in order to rescue and care for the victims, keeping all the population –and the units themselves– safe ...
    • Novel architecture for cellular IoT in future non-terrestrial networks: store and forward adaptations for enabling discontinuous feeder link operation 

      Kellermann, Timo Nicolas; Pueyo Centelles, Roger; Camps-Mur, Daniel; Ferrús Ferré, Ramón Antonio; Guadalupi, Marco; Calveras Augé, Anna M. (Institute of Electrical and Electronics Engineers (IEEE), 2022-06-29)
      Article
      Open Access
      The Internet of Things (IoT) paradigm has already progressed from an emerging technology to an incredibly fast-growing field. Defined as one of the three key services in 5th Generation (5G), massive Machine Type Communications ...
    • On edge microclouds to provide local container-based services 

      Baig Viñas, Roger; Pueyo Centelles, Roger; Freitag, Fèlix; Navarro Moldes, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      Edge computing has been proposed to enable more user-centric cloud-based services. Nowadays, edge computing is operational in industrial and consumer-oriented scenarios. An important limitation of today's solutions, however, ...
    • On-device training of machine learning models on microcontrollers with a look at federated learning 

      Monfort Grau, Marc; Pueyo Centelles, Roger; Freitag, Fèlix (Association for Computing Machinery (ACM), 2021)
      Conference report
      Open Access
      Recent progress in machine learning frameworks makes it now possible to run an inference with sophisticated machine learning models on tiny microcontrollers. Model training, however, is typically done separately on powerful ...
    • On-device training of machine learning models on microcontrollers with federated learning 

      Llisterri Giménez, Nil; Monfort Grau, Marc; Pueyo Centelles, Roger; Freitag, Fèlix (2022-02-14)
      Article
      Open Access
      Recent progress in machine learning frameworks has made it possible to now perform inference with models using cheap, tiny microcontrollers. Training of machine learning models for these tiny devices, however, is typically ...