Enviaments recents

  • Bandgap widening in macroporous silicon photonic crystals by multiperiodic structures 

    Segura García, Daniel; Cardador Maza, David; Vega d'Aurelio, Davide; Santos Blanco, M. Concepción; Dios Otín, Víctor Federico; Rodríguez Martínez, Ángel (Institute of Physics (IOP), 2018-05-14)
    Article
    Accés obert
    Large bandgaps with low transmission in 3D macroporous silicon photonic crystals have been proved as an interesting technology for the development of optical filters and spectroscopic MIR gas sensors. The aim of this study ...
  • Enabling individually entrusted routing security for open and decentralized community networks 

    Neumann, Axel; Navarro Moldes, Leandro; Cerdà Alabern, Llorenç (Elsevier, 2018-10)
    Article
    Accés restringit per política de l'editorial
    Routing in open and decentralized networks relies on cooperation. However, the participation of unknown nodes and node administrators pursuing heterogeneous trust and security goals is a challenge. Community-mesh networks ...
  • Cooperative download in vehicular environments 

    Trullols Cruces, Óscar; Fiore, Marco; Barceló Ordinas, José María (2011-05-12)
    Article
    Accés restringit per política de l'editorial
    We consider a complex (i.e., nonlinear) road scenario where users aboard vehicles equipped with communication interfaces are interested in downloading large files from road-side Access Points (APs). We investigate the ...
  • Coordinated detection of forwarding faults in wireless community networks 

    López, Ester; Navarro Moldes, Leandro (2018-05-01)
    Article
    Accés restringit per política de l'editorial
    Wireless Community Networks (WCN) are crowdsourced networks where equipment is contributed and managed by members from a community. WCN have three intrinsic characteristics that make forwarding faults more likely: inexpensive ...
  • A lightweight service placement approach for community network micro-clouds 

    Selimi, Mennan; Cerdà Alabern, Llorenç; Freitag, Fèlix; Veiga, Luis; Sathiaseelan, Arjuna; Crowcroft, Jon (2018-02-28)
    Article
    Accés obert
    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 stochastic approach for modeling message dissemination in opportunistic networks 

    Orozco, Javier; Santos, Rodrigo; Meseguer Pallarès, Roc; Ochoa, Sergio (2017-11)
    Article
    Accés restringit per política de l'editorial
    The opportunistic networks have shown to be an interesting communication infrastructure for supporting mobile collaborative systems in several application scenarios like disaster relief efforts, hospital work and tourism. ...
  • Real-time communication support for underwater acoustic sensor networks 

    Santos, Rodrigo; Orozco, Javier; Micheletto, Matías; Ochoa, Sergio; Meseguer Pallarès, Roc; Millán, Pere; Molina Clemente, Carlos Maria (MDPI AG, 2017-07-14)
    Article
    Accés obert
    Underwater sensor networks represent an important and promising field of research due to the large diversity of underwater ubiquitous applications that can be supported by these networks, e.g., systems that deliver tsunami ...
  • A DRAM/SRAM memory scheme for fast packet buffers 

    García Vidal, Jorge; March, Maribel; Cerdà Alabern, Llorenç; Corbal San Adrián, Jesús; Valero Cortés, Mateo (2006-05)
    Article
    Accés obert
    We address the design of high-speed packet buffers for Internet routers. We use a general DRAM/SRAM architecture for which previous proposals can be seen as particular cases. For this architecture, large SRAMs are needed ...
  • 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
    Accés obert
    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 ...
  • Leveraging deployment models on low-resource devices for cloud services in community networks 

    Silvestre Apolonia, Nuno Miguel; Freitag, Fèlix; Navarro Moldes, Leandro (2016-07)
    Article
    Accés obert
    Community networks are crowd-sourced IP networks that evolved into regional-scale computing platforms. This has led to adapting the cloud computing model for services that can operate and use computing resources inside a ...
  • guifi.net, a crowdsourced network infrastructure held in common 

    Baig Viñas, Roger; Roca Tió, Ramon; Freitag, Fèlix; Navarro Moldes, Leandro (2015-10-29)
    Article
    Accés obert
    The expression “crowdsourced computer networks” refers to a network infrastructure built by citizens and organisations who pool their resources and coordinate their efforts to make these networks happen. “Community networks” ...
  • Sustainability and participation in the digital commons 

    Franquesa Griso, David; Navarro Moldes, Leandro (2017-05-01)
    Article
    Accés obert
    In this forum we highlight innovative thought, design, and research in the area of interaction design and sustainability, illustrating the diversity of approaches across HCI communities.

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