Enviaments recents

  • Energy efficiency and network performance: A reality check in SDN-based 5G systems 

    Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2017-12-14)
    Article
    Accés obert
    The increasing power consumption and related environmental implications currently generated by large data networks have become a major concern over the last decade. Given the drastic traffic increase expected in 5G dense ...
  • Self-healing topology discovery protocol for software defined networks 

    Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2018-03-19)
    Article
    Accés obert
    This letter presents the design of a self-healing protocol for automatic discovery and maintenance of the network topology in Software Defined Networks (SDN). The proposed protocol integrates two enhanced features (i.e. ...
  • A multi-objective routing strategy for QoS and energy awareness in software-defined networks 

    Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2017-08-21)
    Article
    Accés obert
    Energy consumption is a key concern in the deployment and operation of current data networks, for which Software-Defined Networks (SDN) have become a promising alternative. Although several works have been proposed to ...
  • Evaluation of bone formation in calcium phosphate scaffolds with mu CT-method validation using SEM 

    Lewin, Susanne; Barba Martí, Antonio; Persson, Cecilia; Franch Serracanta, Jordi; Ginebra Molins, Maria Pau; Ohman, Caroline (2017-12-01)
    Article
    Accés restringit per política de l'editorial
    There is a plethora of calcium phosphate (CaP) scaffolds used as synthetic substitutes to bone grafts. The scaffold performance is often evaluated from the quantity of bone formed within or in direct contact with the ...
  • A proposal for an SDN-based SIEPON architecture 

    Hamzeh, Khalili; Sallent Ribes, Sebastián; Piney da Silva, José Ramón; Rincón Rivera, David (2017-07-03)
    Article
    Accés restringit per política de l'editorial
    Passive Optical Network (PON) elements such as Optical Line Terminal (OLT) and Optical Network Units (ONUs) are currently managed by inflexible legacy network management systems. Software-Defined Networking (SDN) is a new ...
  • Making data centres fit for demand response: introducing GreenSDA and GreenSLA contracts 

    Basmadjian, Robert; Botero Vega, Juan Felipe; Giuliani, Giovanni; Hesselbach Serra, Xavier; Klingert, Sonja; de Meer, Hermann (2016-11-23)
    Article
    Accés obert
    The power grid has become a critical infrastructure, which modern society cannot do without. It has always been a challenge to keep power supply and demand in balance; the more so with the recent rise of intermittent ...
  • Evaluación del impacto de la cooperación universidad-empresa en la docencia de una asignatura de Ingeniería telemática 

    Oller Arcas, Antonio; García Villegas, Eduard; Gallardo Gómez, Antonia; Fuentes, Jorge (2016-12-07)
    Article
    Accés obert
    La EETAC (escuela de ingeniería en telecomunicaciones y aerospacial de Castelldefels) es una escuela pionera en la Universidad politécnica por sus metodologías docentes. Este trabajo muestra la experiencia de una colaboración ...
  • On the feasibility of collaborative green data center ecosystems 

    Agustí Torra, Anna; Raspall Chaure, Frederic; Remondo Bueno, David; Rincón Rivera, David; Giuliani, Giovanni (Elsevier, 2015-02-01)
    Article
    Accés obert
    The increasing awareness of the impact of the IT sector on the environment, together with economic factors, have fueled many research efforts to reduce the energy expenditure of data centers. Recent work proposes to achieve ...
  • Energy-aware routing in multiple domains software defined networks 

    Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2016-12)
    Article
    Accés obert
    The growing energy consumption of communication networks has attracted the attention of the networking researchers in the last decade. In this context, the new architecture of Software-Defined Networks (SDN) allows a ...
  • Discovering the network topology: an efficient approach for SDN 

    Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2016-11)
    Article
    Accés obert
    Network topology is a physical description of the overall resources in the network. Collecting this information using efficient mechanisms becomes a critical task for important network functions such as routing, network ...
  • Coordinated node and link mapping VNE using a new paths algebra strategy 

    Hesselbach Serra, Xavier; Amazonas, Jose Roberto; Villanueva, Santi; Felipe Botero, Juan (2016-07-01)
    Article
    Accés obert
    The main resource allocation research challenge in network virtualization is the Virtual Network Embedding (VNE) Problem. It consists of two stages, usually performed separately: node mapping and link mapping. A new ...
  • Design of high throughput and cost-efficient data center networks supporting NFV 

    Eramo, Vicenzo; Hesselbach Serra, Xavier; Luo, Yan; Botero Vega, Juan Felipe (HINDAWI, 2016-04-20)
    Article
    Accés obert
    Data centers (DC) are characterized by the sharing of compute and storage resources to support Internet services. Today, many companies (Amazon, Google, Facebook, etc.) use data centers to offer storage, web search, and ...

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