Now showing items 1-20 of 91

  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • CatNet: Catallactic mechanisms for service control and resource allocation in large-scale application-layer networks 

    Ardáiz Villanueva, Óscar; Freitag, Fèlix; Navarro Moldes, Leandro; Eymann, Torsten; Reinicke, Michael (IEEE, 2002-05-21)
    Conference report
    Open Access
    Collaborative tools based on the Web/Internet infrastructure such as E-mail, discussion groups, video/audio conferencing and virtual campuses have been proposed and implemented in many distance learning scenarios. Grids ...
  • Cloud-based extension for Community-Lab 

    Selimi, Mennan; Florit López, Jorge Luis; Vega d'Aurelio, Davide; Meseguer Pallarès, Roc; López Berga, Ester; Khan, Muhammad Amin; Neumann, Axel; Freitag, Fèlix; Navarro Moldes, Leandro; Baig Viñas, Roger; Escrich, Pau; Moll, Agusti; Pueyo, Roguer; Vilalta, Ivan; Aymerich, Marc; Lamora, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Community-Lab is an open, distributed infrastructure for researchers to carry out experiments within wireless community networks. Community networks are an emergent model of infrastructures built with off-the-shelf ...
  • Cloud services in the Guifi.net community network 

    Selimi, Mennan; Khan, Muhammad Amin; Dimogerontakis, Emmanouil; Freitag, Fèlix; Pueyo, Roger (2015-02-15)
    Article
    Open Access
    Internet and communication technologies have lowered the costs to collaborate for communities, leading to new services like user-generated content and social computing and, through collaboration, collectively built ...