Now showing items 1-20 of 104

    • 5G and the Internet of everyone: motivation, enablers, and research agenda 

      Maccari, Leonardo; Karaliopoulos, Merkouris; Koutsopoulos, Iordanis; Navarro Moldes, Leandro; Freitag, Fèlix; Lo Cigno, Renato (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      As mobile broadband subscriptions grow twice as fast as the fixed ones and the Internet of Things comes forth, the 5G vision of the Internet of Everything (people, devices, and things), becomes a substantial and credible ...
    • A catallactic market for data mining services. 

      Joita, Liviu; Rana, Omer; Freitag, Fèlix; Chao, Isaac; Chacín Martínez, Pablo; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar (2007)
      Article
      Open Access
      We describe a Grid market for exchanging data mining services based on the Catallactic market mechanism proposed by von Hayek. This market mechanism allows selection between multiple instances of services based on operations ...
    • A distributed auctioneer for resource allocation in decentralized systems 

      Khan, Muhammad Amin; Vilaça, Xavier; Rodrigues, Luís; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      In decentralized systems, nodes often need to coordinate to access shared resources in a fair manner. One approach to perform such arbitration is to rely on auction mechanisms. Although there is an extensive literature ...
    • A dynamic periodicity detector: application to speedup computation 

      Freitag, Fèlix; Corbalán González, Julita; Labarta Mancho, Jesús José (IEEE, 2001-04)
      Conference report
      Open Access
      We propose a dynamic periodicity detector (DPD) for the estimation of periodicities in data series obtained from the execution of applications. We analyze the algorithm used by the periodicity detector and its performance ...
    • A Hayekian self-organization approach to service allocation in computing systems 

      Eymann, Torsten; Reinicke, Michael; Freitag, Fèlix; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar; Artigas Vidal, Pau (Elsevier, 2005)
      Article
      Open Access
      Future ‘on-demand’ computing systems, often depicted as potentially large scale and complex Service-Oriented Architectures, will need innovative management approaches for controlling and matching services demand and supply. ...
    • A lightweight service placement approach for community network micro-clouds 

      Selimi, Mennan; Cerdà Alabern, Llorenç; Freitag, Fèlix; Veiga, Luis; Sathiaseelan, Arjuna; Crowcroft, Jon (2019-03)
      Article
      Open Access
      Community networks (CNs) have gained momentum in the last few years with the increasing number of spontaneously deployed WiFi hotspots and home networks. These networks, owned and managed by volunteers, offer various ...
    • A look at energy efficient system opportunities with community network clouds 

      Freitag, Fèlix; Sharifi, Leila; Khan, Muhammad Amin; Navarro Moldes, Leandro; Baig, Roger; Escrich, Pau; Veiga, Luis (CEUR-WS.org, 2014)
      Conference report
      Open Access
      Community networking is an emerging model of a shared communication infrastructure in which communities of citizens build and own open networks. Community networks offer successfully IP-based networking to the user. In ...
    • 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 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 ...
    • A new approach to role and position detection in networks 

      Vega d'Aurelio, Davide; Magnani, Matteo; Montesi, Danilo; Meseguer Pallarès, Roc; Freitag, Fèlix (2016-06)
      Article
      Open Access
      We rethink and extend the concepts of position and role in a network, basing them on various well-known measures that were not previously associated with these concepts, such as geodesic distance and modularity. The ...
    • A summary of virtualization techniques 

      Rodríguez Haro, Fernando; Freitag, Fèlix; Navarro Moldes, Leandro; Hernández Sánchez, Efraín; Farías Mendoza, Nicandro; Guerrero Ibáñez, Juan Antonio; González Potes, Apolinar (Elsevier, 2012)
      Article
      Restricted access - publisher's policy
      Nowadays, virtualization is a technology that is applied for sharing the capabilities of physical computers by splitting the resources among OSs. The concept of Virtual Machines (VMs) started back in 1964 with a IBM project ...
    • A trace-scaling agent for parallel application tracing. 

      Freitag, Fèlix; Caubet Serrabou, Jordi; Labarta Mancho, Jesús José (IEEE, 2002)
      Conference report
      Open Access
      Tracing and performance analysis tools are an important component in the development of high performance applications. Tracing parallel programs with current tracing tools, however, easily leads to large trace files with ...
    • Advances in wireless community networks with the community-lab testbed 

      Navarro Moldes, Leandro; Baig Viñas, Roger; Barz, Christoph; Bonicioli, Joseph; Braem, Bart; Freitag, Fèlix; Vilalta i Balaguer, Ivan (2016-07)
      Article
      Open Access
      Beyond traditional telecom providers, citizens and organizations pool their own resources and coordinate in order to build local network infrastructures to address the digital divide in many parts of the world. These ...
    • Analysis of the social effort in multiplex participatory networks 

      Vega d'Aurelio, Davide; Meseguer Pallarès, Roc; Freitag, Fèlix (Springer, 2014)
      Conference report
      Open Access
      Community networks are participatory connectivity solutions for citizens where all the resources are owned, managed and controlled by the participants. As a natural evolution, in recent years some initiatives have flourished ...
    • Aplicació per a la demostració de projectes de PXC amb accés via Web 

      Freitag, Fèlix; Navarro Moldes, Leandro; Liarte Segura, Laura (2009-02-12T12:11:10Z)
      Conference report / Conference lecture
      Open Access
      El projecte docent ha desenvolupat l’aplicació Web PxcDemo dirigida als nous estudiants de l'assignatura PXC. L'objectiu del projecte és disposar d'una aplicació Web que ensenyi als estudiants nous demos de projectes de ...
    • ARTA: An economic middleware to exchange pervasive energy and computing resources 

      Sharifi, Leila; Freitag, Fèlix; Veiga, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      Studies reveal that an integrated system of smart grid and cloud computing ecosystems can better attain the energy efficiency objectives, considering all the aspects. To facilitate the integration, in this paper, we introduce ...
    • Assessing a distributed market infrastructure for economics-based service selection 

      Brunner, René; Chao, Isaac; Chacín Martínez, Pablo; Freitag, Fèlix; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar; Joita, Liviu; Rana, Omer (Springer, 2007)
      Conference lecture
      Open Access
      Service selection is an important issue for market-oriented Grid infrastructures. However, few results have been published on the use and evaluation of market models in deployed prototypes, making it difficult to assess ...
    • Assessing the participatory design of a project-based course on computer network applications 

      Freitag, Fèlix; Tous Liesa, Rubén; Navarro Moldes, Leandro
      Conference report
      Open Access
      New teaching methodologies which foster student involvement, such as project-based learning, are nowadays part of the study curriculum of many engineering schools. Project-based learning courses, however, often build upon ...
    • Blockchain-enabled participatory incentives for crowdsourced mesh networks 

      San Miguel Pérez, Elena; Timmerman, Roxane; Mosquera Dopico, Sergio; Dimogerontakis, Emmanouil; Freitag, Fèlix; Navarro Moldes, Leandro (Springer, 2019)
      Conference report
      Open Access
      Crowdsourced mesh networks are built, maintained and used by several participants that cooperate to provide and consume connectivity. Providers of infrastructure want to get compensation for their investments and earn ...
    • 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 ...