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Now showing items 1-20 of 127

    • 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 circular commons for digital devices: tools and services in ereuse.org 

      Franquesa Griso, David; Navarro Moldes, Leandro; Bustamante Talavera, Xavier (Association for Computing Machinery (ACM), 2016)
      Conference report
      Open Access
      Circular economies are particularly relevant in the context of digital devices or electric and electronic equipment (EEE). Many digital devices built using scarce and potentially toxic materials have a too-short life, ...

    • A demand based algorithm for rapid updating of replicas 

      Acosta Elías, J. Jesús; Navarro Moldes, Leandro (IEEE, 2002)
      Conference report
      Open Access
      In many Internet scale replicated system, not all replicas can be dealt with in the same way, since some will be in greater demand than others. In the case of weak consistency algorithms, we have observed that updating first ...

    • A democratic Grid: collaboration, sharing and computing for everyone 

      Krishnaswamy, Ruby; Navarro Moldes, Leandro; Vlassov, Vladimir (IOS Press, 2008-10)
      Conference lecture
      Open Access
      This paper presents an integrated vision, architecture, middleware and applications of a public and large scale Grid for everyone: supporting collaboration for groups of people who can interact and share work and share or ...

    • 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 look at energy efficient system opportunities with community network clouds 

      Freitag, Fèlix; Sharifi, Leila; Khan, Muhammad Amin; Navarro Moldes, Leandro; Baig Viñas, 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 minimalistic distance-vector routing protocol for LoRa mesh networks 

      Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc; Navarro Moldes, Leandro (2021-06-15)
      Research report
      Open Access
      LoRa has gained traction in the Internet of Things (IoT) domain as a Low Power, Wide Area Network(LPWAN) radio technology, providing low-power and long-range communication in the sub-GHz band. Most often it is used as part ...

    • 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 participatory service learning process for FOSS-based solidarity projects 

      Franquesa Griso, David; López Álvarez, David; Navarro Moldes, Leandro; Sánchez Carracedo, Fermín (Unites Nations University Press, 2012-09)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Software and information and communication technologies (ICT) can be key elements for social development, especially in developing countries. Projects on ICT for development (ICT4D) are an important tool to incorporate ...

    • A Stackelberg game to derive the limits of energy savings for the allocation of data center resources 

      León Gutiérrez, Xavier; Navarro Moldes, Leandro (Elsevier, 2013-01)
      Article
      Restricted access - publisher's policy
      Energy-related costs are becoming one of the largest contributors to the overall cost of operating a data center, whereas the degree of data center utilization continues to be very low. An energy-aware dynamic provision ...

    • 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 technological overview of the guifi.net community network 

      Vega d'Aurelio, Davide; Baig Viñas, Roger; Cerdà Alabern, Llorenç; Medina Medina, Esunly; Meseguer Pallarès, Roc; Navarro Moldes, Leandro (2015-12-24)
      Article
      Open Access
      This work presents a technological analysis of guifi.net, a free, neutral, and open-access community network. Guifi.net consists of more than 27,000 operational nodes, which makes it the world’s largest community network ...

    • 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 ...

    • An evaluation of BMX6 for community wireless networks 

      Neumann, Axel; López Berga, Ester; Navarro Moldes, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      Nowadays, a growing number of communities of citizens build, operate and own open IP-based community wireless networks with thousands of low capacity nodes actively participating in routing the data traffic. This article ...

    • 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 ...

    • Aprenentatge 2.0 

      Haro Ollé, Juan José de; Freire, Juan; López Álvarez, David; Franquesa Griso, David; Navarro Moldes, Leandro; Atrey, Shefali; Singh, Aradhana; Jain, Shivani; Romero, Antoni M. (RCE, 2009-12)
      Article
      Open Access
      [p.4] Escola 2.0

    • ARQUITECTURA D'APLICACIONS DISTRIBUIDES (Examen 1r quadrim.) 

      Navarro Moldes, Leandro (Universitat Politècnica de Catalunya, 2002-01-09)
      Exam
      Restricted access to the UPC academic community

    • Arquitectura de aplicaciones distribuidas 

      Navarro Moldes, Leandro (Edicions UPC, 2001)
      Book
      Restricted access to the UPC academic community
      Este material proporciona una visión detallada de cómo funcionan las aplicaciones distribuidas en Internet que utilizan el transporte de datos mediante los protocolos TCP/IP; Los principios básicos de diseño de las ...