Now showing items 1-20 of 325

  • 5G Radio access network slicing 

    Garcia Cruz, Víctor (Universitat Politècnica de Catalunya, 2018-07)
    Bachelor thesis
    Open Access
    With the introduction of 5G, it will be possible to simultaneously admit a wider range of applications and business models that was not possible with 4G. But in order to carry this out, it is necessary network slicing, ...
  • Abstraction of Mobile Network Topology 

    Codes Morales, Albert (Universitat Politècnica de Catalunya, 2015-03-09)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  King's College London
    [ANGLÈS] Analyse the effect that abstracting topology of mobile networks would have on the performance of current mobile networks. The investigations are carried out in network simulator and by designing the SDN-based ...
  • Access to streams in multiprocessor systems 

    Valero Cortés, Mateo; Peirón Guardia, Montse; Ayguadé Parra, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 1993)
    Conference report
    Open Access
    When accessing streams in vector multiprocessor machines, degradation in the interconnection network and conflicts in the memory modules are the factors that reduce the efficiency of the system. In this paper, we present ...
  • A collaborative protocol for anonymous reporting in vehicular ad hoc networks 

    Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge; Pallarès Segarra, Esteve (Elsevier, 2013-11-01)
    Article
    Restricted access - publisher's policy
    Vehicular ad hoc networks (VANETs) have emerged to leverage the power of modern communication technologies, applied to both vehicles and infrastructure. Allowing drivers to report traffic accidents and violations through ...
  • Adapting the virtual network topology to near future traffic 

    Morales Alcaide, Fernando; Festa, Paola; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    The introduction of new services requiring large and dynamic bitrate connectivity can cause changes in the direction of the traffic in metro and even core network segments along the day. This leads to large overprovisioning ...
  • A distributed, parallel, and generic virtual network embedding framework 

    Beck, Michael Till; Fischer, Andreas; de Meer, Hermann; Botero Vega, Juan Felipe; Hesselbach Serra, Xavier (2013)
    Conference report
    Restricted access - publisher's policy
    One of the main challenges of network virtualization is the mapping of virtual network demands to physical network resources, commonly known as the virtual network embedding (VNE) problem. This paper introduces DPVNE, a ...
  • A dynamic pricing algorithm for a network of virtual resources 

    Naudts, Bram; Flores Méndez, Mario Rogelio; Mijumbi, Rashid; Verbrugge, Sofie; Serrat Fernández, Juan; Colle, Didier (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    A service chain is a combination of network services (e.g. network address translation (NAT), a firewall, etc.) that are interconnected to support an application (e.g. video-on-demand). Building a service chain requires a ...
  • A fast and efficient algorithm to identify clusters in networks 

    Comellas Padró, Francesc de Paula; Miralles de la Asunción, Alicia (2010-11-01)
    Article
    Restricted access - publisher's policy
    A characteristic feature of many relevant real life networks, like the WWW, Internet, transportation and communication networks, or even biological and social networks, is their clustering structure. We discuss in this ...
  • A fast robust optimization-based heuristic for the deployment of green virtual network functions 

    Marotta, Antonio; Zola, Enrica Valeria; D'Andreagiovanni, Fabio; Kassler, Andreas (2017-10-01)
    Article
    Open Access
    Network Function Virtualization (NFV) has attracted a lot of attention in the telecommunication field because it allows to virtualize core-business network functions on top of a NFV Infrastructure. Typically, virtual network ...
  • A framework for dynamic network architecture and topology optimization 

    Shafigh, Alireza Shams; Lorenzo, Beatriz; Glisic, Savo; Pérez Romero, Jordi; DaSilva, Luiz A.; MacKenzie, Allen B.; Röning, Juha (2016-04)
    Article
    Open Access
    A new paradigm in wireless network access is presented and analyzed. In this concept, certain classes of wireless terminals can be turned temporarily into an access point (AP) anytime while connected to the Internet. This ...
  • A fuzzy-based trustworthiness system for P2P communications in JXTA-overlay considering positive and negative effects 

    Umezaki, Kouhei; Spaho, Evjola; Barolli, Leonard; Ikeda, Makoto; Xhafa Xhafa, Fatos; Takizawa, Makoto (2013)
    Conference report
    Restricted access - publisher's policy
    In Peer-to-Peer (P2P) networks, peers often interact with unknown peers and finding a reliable peer for interaction is a major challenge. In our previous work, we proposed and implemented a fuzzy-based trustworthiness ...
  • A GRASP with path-relinking heuristic for the survivable IP/MPLS-over-WSON multi-layer network optimization problem 

    Pedrola Escribà, Òscar; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo; Careglio, Davide; González de Dios, Óscar; Comellas Colomé, Jaume (2013-12)
    Article
    Restricted access - publisher's policy
    In this paper we deal with the survivable internet protocol (IP)/multi-protocol label switching (MPLS)-over-wavelength switched optical network (WSON) multi-layer network optimization problem (SIMNO). This problem entails ...
  • A grid-enabled control plane architecture: the PHOSPHORUS approach 

    Simeonidou, Dimitra; Escalona, E.; Zervas, G.; Nejabati, R.; Spadaro, Salvatore; Binczewski, A.; Carrozzo, G.; Ciulli, N. (Optical Society of America, 2008)
    Conference report
    Open Access
    This paper presents the architecture of the Phosphorus Grid-enabled GMPLS (G2MPLS) Network Control Plane that implements the concept of Grid Network Services provisioning through a set of seamlessly integrated procedures.
  • A hybrid load-balancing and energy-aware RWA algorithm for telecommunication networks 

    Ricciardi, Sergio; Sembroiz Ausejo, David; Palmieri, Francesco; Santos Boada, Germán; Perelló Muntan, Jordi; Careglio, Davide (2015-06-25)
    Article
    Open Access
    In the last years, the power consumption of telecommunication networks has attracted the attention of both researchers and field experts in order to contain the associated energy bills and reduce their ecological impact. ...
  • A joint multi-path and multi-channel protocol for traffic routing in smart grid neighborhood area networks 

    Astudillo León, Juan Pablo; Cruz Llopis, Luis Javier de la (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-20)
    Article
    Open Access
    In order to improve the management mechanisms of the electric energy transport infrastructures, the smart grid networks have associated data networks that are responsible for transporting the necessary information between ...
  • ALEVIN - A framework to develop, compare, and analyze virtual network embedding algorithms 

    Fischer, Andreas; Botero Vega, Juan Felipe; Duelli, Michael; Schlosser, Daniel; Hesselbach Serra, Xavier; de Meer, Hermann (2011)
    Conference report
    Open Access
    Network virtualization is recognized as an enabling technology for the Future Internet. Applying virtualization of network resources leads to the problem of mapping virtual resources to physical resources, known as “Virtual ...
  • Análisis del retardo en enlaces con protocolos ARQ y control de flujo: aplicación a una red estrella 

    Rubio Sola, Jose Antonio; Figueras Pàmies, Joan (Marcombo, 1983)
    Conference report
    Open Access
    El objetivo de este trabajo se enmarca en el desarrollo de herramientas de cuantificación de los tiempos de retardo en redes de computadores. El análisis se ha centrado en la evaluación del tiempo medio de retardo en el ...
  • Análisis de redes y sistemas de comunicaciones 

    Hesselbach Serra, Xavier; Altés Bosch, Jorge (Edicions UPC, 2002)
    Book
    Restricted access to the UPC academic community
    Análisis de redes y sistemas de comunicaciones es una obra orientada a estudiantes de segundo ciclo de ingeniería de telecomunicaciones o telemática que buscan una guía de referencia y consulta en el campo de las redes de ...
  • Anàlisis i monitorització web d'una xarxa de computadors amb factor de criticitat 

    Moreno Barra, Àlex Enrique (Universitat Politècnica de Catalunya, 2013-09-30)
    Master thesis (pre-Bologna period)
    Open Access
    El projecte consisteix en definir e implementar una solució informàtica i de comunicacions per una empresa client. Un cop definit l'escenari de treball i la xarxa de computadors desenvoluparem una web que ens permeti ...
  • Análisis y Evaluación Comparada de redes de acceso GPON y EP2P 

    García Torres, Jose (Universitat Politècnica de Catalunya, 2009-02-14)
    Master thesis (pre-Bologna period)
    Open Access
    El trabajo pretende realizar una comparación entre GPON y EP2P, que son tecnologías de acceso a la red mediante fibra óptica, para responder a la pregunta de: ¿ Qué tecnología es la más adecuada para soporlar los servicios ...