CNDS - Xarxes de Computadors i Sistemes Distribuïts

 

Les xarxes comunitàries busquen una xarxa oberta, lliure i neutral aplicant el principi de
reciprocitat a la interconnexió de nodes per la circulació de continguts i serveis. El grup
investiga on Xarxes Comunitàries (Community Networks), Computació en Núvol Comunitària
(Community Clouds) i Xarxes De Sensors Sense Fils Comunitàries (Community Wireless Sensor
Networks).

Recent Submissions

  • A comparative study of calibration methods for low-cost ozone sensors in IoT platforms 

    Ferrer Cid, Pau; Barceló Ordinas, José María; García Vidal, Jorge; Ripoll, Anna; Viana, Mar (2019-12-01)
    Article
    Open Access
    This paper shows the result of the calibration process of an Internet of Things platform for the measurement of tropospheric ozone (O 3 ). This platform, formed by 60 nodes, deployed in Italy, Spain, and Austria, consisted ...

  • Estimation of web proxy response times in community networks using matrix factorization algorithms 

    Gómez Sánchez, Eduardo; Bores Quijano, Diego; Bote Lorenzo, Miguel Luís; Meseguer Pallarès, Roc (2020-01-01)
    Article
    Open Access
    In community networks, users access the web using a proxy selected from a list, normally without regard to its performance. Knowing which proxies offer good response times for each client would improve the user experience ...

  • 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)
    External 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 ...

  • Improving performance of QUIC in WiFi 

    Manzoor, Jawad; Cerdà Alabern, Llorenç; Sadre, Ramin; Drago, Idilio (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    QUIC is a new transport protocol under standardization since 2016. Initially developed by Google as an experiment, the protocol is already deployed in large-scale, thanks to its support in Chromium and Google's servers. ...

  • Socially aware microcloud service overlay optimization in community networks 

    Silvestre Apolonia, Nuno Miguel; Freitag, Fèlix; Navarro Moldes, Leandro; Girdzijauskas, Sarunas (2019-09-11)
    Article
    Restricted access - publisher's policy
    Community networks are a growing network cooperation effort by citizens to build and maintain Internet infrastructure in regions that are not available. Adding that, to bring cloud services to community networks (CNs), ...

  • PiCasso: enabling information-centric multi-tenancy at the edge of community mesh networks 

    Selimi, Mennan; Lertsinsrubtavee, Adisorn; Sathiaseelan, Arjuna; Cerdà Alabern, Llorenç; Navarro Moldes, Leandro (2019-12-09)
    Article
    Open Access
    Edge computing is radically shaping the way Internet services are run by enabling computations to be available close to the users - thus mitigating the latency and performance challenges faced in today’s Internet infrastructure. ...

  • Towards scalable Community Networks topologies 

    Maccari, Leonardo; Gemmi, Gabriele; Lo Cigno, Renato; Karaliopoulos, Merkourios; Navarro Moldes, Leandro (Elsevier, 2019-11)
    Article
    Restricted access - publisher's policy
    Community Networks (CNs) are grassroots bottom-up initiatives that build local infrastructures, normally using Wi-Fi technology, to bring broadband networking in areas with inadequate offer of traditional infrastructures ...

  • Collaborative informed gateway selection in large-scale and heterogeneous 

    Batbayar, Khulan; Dimogerontakis, Emmanouil; Meseguer Pallarès, Roc; Navarro Moldes, Leandro; Sadre, Ramin (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    In wireless community access networks, clients tend to reach the Internet through multiple gateway nodes instead of a single default gateway. The mapping of gateways to clients should take into account the perception of ...

  • Time series analysis to predict end-to-end quality of wireless community networks 

    Millán Marco, Pere; Aliagas Castell, Carles; Molina Clemente, Carlos Maria; Dimogerontakis, Emmanouil; Meseguer Pallarès, Roc (2019-05-01)
    Article
    Open Access
    Community Networks have been around us for decades being initially deployed in the USA and Europe. They were designed by individuals to provide open and free “do it yourself” Internet access to other individuals in the ...

  • 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 ...

  • Distributed multi-scale calibration of low-cost ozone sensors in wireless sensor networks 

    Barceló Ordinas, José María; Ferrer Cid, Pau; García Vidal, Jorge; Ripoll, Anna; Viana, Mar (Multidisciplinary Digital Publishing Institute (MDPI), 2019-05-31)
    Article
    Open Access
    New advances in sensor technologies and communications in wireless sensor networks have favored the introduction of low-cost sensors for monitoring air quality applications. In this article, we present the results of the ...

  • Is there a case for parallel connections with modern web protocols? 

    Manzoor, Jawad; Sadre, Ramin; Drago, Idilio; Cerdà Alabern, Llorenç (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Modern web protocols like HTTP/2 and QUIC aim to make the web faster by addressing well-known problems of HTTP/1.1 running on top of TCP. Both HTTP/2 and QUIC are specified to run on a single connection, in contrast to the ...

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