Now showing items 1-20 of 29

    • 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 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 simheuristic algorithm for service placement in community networks 

      Panadero Martínez, Javier; Calvet Liñán, Laura; Bayliss, Christopher; Marques Puig, Joan Manuel; Selimi, Mennan; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      The growing demand for network connectivity has boosted the number of community networks (CNs). CNs are decentralized and self-organized communication networks owned and managed at the edge by volunteers. Due to the ...
    • A two-stage multi-criteria optimization method for service placement in decentralized edge micro-clouds 

      Panadero, Javier; Selimi, Mennan; Calvet Liñán, Laura; Marques Puig, Joan Manuel; Freitag, Fèlix (Elsevier, 2021-08)
      Article
      Restricted access - publisher's policy
      Community networks are becoming increasingly popular due to the growing demand for network connectivity in both rural and urban areas. Community networks are owned and managed at the edge by volunteers. Their irregular ...
    • BePOCH: Improving federated learning performance in resource-constrained computing devices 

      Ibraimi, Lenart; Selimi, Mennan; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      Inference with trained machine learning models is now possible with small computing devices while only a few years ago it was run mostly in the cloud only. The recent technique of Federated Learning offers now a way to do ...
    • Blockchain for economically sustainable wireless mesh networks 

      Kabbinale, A.R.; Dimogerontakis, Emmanouil; Selimi, Mennan; Ali, Anwaar; Navarro Moldes, Leandro; Sathiaseelan, Arjuna; Crowcroft, Jon (2020-06-25)
      Article
      Open Access
      Decentralization, in the form of mesh networking and blockchain, two promising technologies, is coming to the telecommunications industry. Mesh networking allows wider low-cost Internet access with infrastructures built ...
    • 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 ...
    • 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 ...
    • Contract networking for crowdsourced connectivity 

      Dimogerontakis, Emmanouil; Navarro Moldes, Leandro; Selimi, Mennan; Mosquera Dopico, Sergio; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      Universal connectivity is still unavailable or expensive for half of the global population, despite being critical for social participation. The deployment of crowdsourced networking infrastructures creates an opportunity ...
    • Demo: An experimental environment based on mini-PCs for federated learning research 

      Freitag, Fèlix; Vilchez Blanco, Pedro; Wei, Lu; Liu, Chun-Hung; Selimi, Mennan; Koutsopoulos, Iordanis (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Conference report
      Open Access
      There is a growing research interest in Federated Learning (FL), a promising approach for data privacy preservation and proximity of training to the network edge, where data is generated. Resource consumption for Machine ...
    • 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 ...
    • 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 ...
    • Experiences with distributed heterogeneous clouds over community networks 

      Selimi, Mennan; Freitag, Fèlix; Martí, Daniel; Pueyo, Roguer; Escrich, Pau; Baig Viñas, Roger (Association for Computing Machinery (ACM), 2014)
      Conference lecture
      Restricted access - publisher's policy
      Community networks [1] are decentralized and self-organized communication networks built and operated by citizens and for citizens. They are an emergent model of infrastructure that aims to satisfy a community's demand for ...
    • Gelly-scheduling: distributed graph processing for service placement in community networks 

      Coimbra, Miguel E.; Selimi, Mennan; Francisco, Alexandre P.; Freitag, Fèlix; Veiga, Luis (Association for Computing Machinery (ACM), 2018)
      Conference report
      Open Access
      Community networks (CNs) have seen an increase in the last fifteen years. Their members contact nodes which operate Internet proxies, web servers, user file storage and video streaming services, to name a few. Detecting ...
    • Information-Centric Multi-Access Edge Computing Platform for Community Mesh Networks 

      Lertsinsrubtavee, Adisorn; Selimi, Mennan; Sathiaseelan, Arjuna; Cerdà Alabern, Llorenç; Navarro Moldes, Leandro; Crowcroft, Jon (Association for Computing Machinery (ACM), 2018)
      Conference report
      Restricted access - publisher's policy
    • Integration of assisted P2P live streaming service in community network clouds 

      Selimi, Mennan; Apolonia, Nuno; Olid Domínguez, Ferran; Freitag, Fèlix; Navarro Moldes, Leandro; Moll, Agustí; Pueyo, Roger; Veiga, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      Wireless community networks (CNs) are large-scale, self-organized and decentralized communication infrastructures built and operated by citizens for citizens. CN cloud infrastructures have been recently introduced to run ...
    • MeshDapp: Blockchain-enabled sustainable business models for networks 

      Dimogerontakis, Emmanouil; Navarro Moldes, Leandro; Selimi, Mennan; Mosquera Dopico, Sergio; Freitag, Fèlix (Springer, 2019)
      Conference report
      Open Access
      The digital world demands a network infrastructure to supply connectivity to any participant anywhere. Sustainable networks require balanced value flows. Value is connectivity delivered at a material and service cost to ...
    • On the service placement in community network micro-clouds 

      Selimi, Mennan (Universitat Politècnica de Catalunya, 2017-05-22)
      Doctoral thesis
      Open Access
      Community networks (CNs) have gained momentum in the last few years in response to the growing demand for network connectivity in rural and urban areas. These networks, owned and managed by volunteers, offer various services ...
    • Performance evaluation of a distributed storage service in community network clouds 

      Selimi, Mennan; Freitag, Fèlix; Cerdà Alabern, Llorenç; Veiga, Luis (Wiley, 2015-09-20)
      Article
      Open Access
      Community networks are self-organized and decentralized communication networks built and operated by citizens, for citizens. The consolidation of today's cloud technologies offers now, for community networks, the possibility ...
    • Performance evaluation of federated learning over wireless mesh Networks with low-capacity devices 

      Freitag, Fèlix; Vilchez Blanco, Pedro; Wei, Lu; Liu, Chun-Hung; Selimi, Mennan (Springer, 2022)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Federated learning is a distributed learning technique in which a machine learning model is trained collaboratively among several nodes. While the privacy preservation of the training data is one of the important promises ...