Now showing items 1-17 of 17

  • A data center control architecture for power consumption reduction 

    Botero Vega, Juan Felipe; Rincón Rivera, David; Agustí Torra, Anna; Hesselbach Serra, Xavier; Raspall Chaure, Frederic; Remondo Bueno, David; Barba Martí, Antonio; Barone, Paolo; Giuliani, Giovanni (2013)
    Conference report
    Restricted access - publisher's policy
    In recent years, the emergence of the cloud computing has increased the need of resources to support cloud-based services. Therefore, the role of the data centers has become essential. Following the growing of services, ...
  • 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 generic architecture for Demand Response: the All4Green approach 

    Basmadjian, Robert; Lovasz, Gergö; Beck, Michael Till; de Meer, Hermann; Hesselbach Serra, Xavier; Botero Vega, Juan Felipe; Klingert, Sonja; Pérez Ortega, María; López, Juan Carlos; Stam, Andries; van Krevelen, Rick; di Girolamo, marco (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    Demand Response is a mechanism used in power grids to manage customers’ power consumption during critical situations (e.g. power shortage). Data centres are good candidates to participate in Demand Response programs due ...
  • A novel paths algebra-based strategy to flexibly solve the link mapping stage of VNE problems 

    Botero Vega, Juan Felipe; Molina, Miguel; Hesselbach Serra, Xavier; De Almeida Amazonas, Jose Roberto (2013-11)
    Article
    Restricted access - publisher's policy
    One of the main challenges of network virtualization is the virtual network embedding problem (VNE) that consists of mapping virtual network demands in physical network resources. VNE can be decomposed into two stages: ...
  • 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 ...
  • Comparacion de algoritmos para el mapeo de redes virtuales 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier (2011)
    Conference report
    Restricted access - publisher's policy
    La virtualizacion de red es reconocida como una de las principales tecnologías que formara parte del Internet del futuro. Mediante ella, la actual inhabilidad de Internet para desarrollar e implementar nuevos servicios, ...
  • Energy efficient virtual network embedding 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier; Duelli, Michael; Schlosser, Daniel; Fischer, A.; de Meer, Hermann (2012-05)
    Article
    Restricted access - publisher's policy
    Waste of energy due to over-provisioning and overdimensioning of network infrastructures has recently stimulated the interest on energy consumption reduction by Internet Service Providers (ISPs). By means of resource ...
  • Flexible VNE algorithms analysis using ALEVIN 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier; Duelli, Michael; Schlosser, Daniel; Fischer, A.; de Meer, Hermann (2011)
    Conference report
    Open Access
    Network virtualization is recognized as an enabling technology for the Future Internet that overcomes network ossification. However, it introduces a set of challenges. In any network virtualization environment, the problem ...
  • Generalized Cognitive Networks of Virtual Resources 

    Manzalini, A; Moiso, Corrado; Minerva, R.; Hesselbach Serra, Xavier; Solé Pareta, Josep; Botero Vega, Juan Felipe (2010)
    Conference report
    Open Access
    The pervasive distribution of digital devices (e.g., laptops, mobile phone, digital camera, music players, RFID, sensors, smart cards) will create a large distributed computational and networking environment that will ...
  • Greener networking in a network virtualization environment 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier (2013-06-19)
    Article
    Restricted access - publisher's policy
    Energy consumption of network operators can be minimized by the dynamic and smart relocation of networking resources. In this paper, we propose to take advantage of network virtualization to enable a smart energy aware ...
  • MANTICORE II: IP Network as a Service Pilots at HEAnet, NORDUnet and RedIRIS 

    Cabello, Isidro; Simeonidou, Dimitra; Lonvich, Chris; Uze, Jean Marc; de Miguel, Tomas P.; Fischer, Lars; Wilson, Dave; Reijs, Victor; Grasa Gras, Eduard; Figuerola, Sergi; Barrera, Xavier; Ferrao, Laia; Baez, Carlos; Minoves, Pau; Hesselbach Serra, Xavier; Botero Vega, Juan Felipe (2010)
    Conference report
    Open Access
    MANTICORE II follows the Infrastructure as a Service (IaaS) paradigm to enable National Research and Education Networks (NRENs) and other e-infrastructure providers to enhance their service portfolio by building and piloting ...
  • Optimal mapping of virtual networks with hidden hops 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier; Fischer, Andreas; de Meer, Hermann (2012-12-01)
    Article
    Open Access
    Network virtualization has emerged as a solution for the Internet inability to address the required challenges caused by the lack of coordination among Internet service providers for the deployment of new services. The ...
  • Optimization model for bandwidth allocation in a network virtualization environment 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier (2009)
    Conference report
    Open Access
    Bandwidth allocation is one of the main problems in network virtualization. Mechanisms to allocate bandwidth may avoid bottlenecked virtual links. This paper proposes a model based on optimization theory, to distribute the ...
  • Study, evaluation and contributions to new algorithms for the embedding problem in a network virtualization environment 

    Botero Vega, Juan Felipe (Universitat Politècnica de Catalunya, 2013-06-21)
    Doctoral thesis
  • The Bottlenecked Virtual Network Problem in Bandwidth Allocation for Network Virtualization 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Restricted access - publisher's policy
    Internet is becoming unable to overcome the challenges required by new services due to the lack of coordination among Internet service providers. This situation, frequently called network ossification, makes increasingly ...
  • Virtual network embedding: a survey 

    Fischer, Andreas; Botero Vega, Juan Felipe; Beck, Michael Till; de Meer, Hermann; Hesselbach Serra, Xavier (IEEE Computer Society Publications, 2013-10)
    Article
    Restricted access - publisher's policy
    Network virtualization is recognized as an enabling technology for the future Internet. It aims to overcome the resistance of the current Internet to architectural change. Application of this technology relies on algorithms ...
  • VNREAL: Virtual network resource embedding algorithms in the framework ALEVIN 

    Duelli, Michael; Schlosser, Daniel; Botero Vega, Juan Felipe; Hesselbach Serra, Xavier; Fischer, A.; de Meer, Hermann (2011)
    Conference report
    Restricted access - publisher's policy
    Network virtualization is recognized as an enabling technology for the Future Internet that overcomes network ossification. However, it introduces a set of challenges. In any network virtualization environment, the problem ...