Ara es mostren els items 1-20 de 42

  • 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)
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    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)
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    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)
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    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 ...
  • 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)
    Text en actes de congrés
    Accés obert
    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 de redes y sistemas de comunicaciones 

    Hesselbach Serra, Xavier; Altés Bosch, Jorge (Edicions UPC, 2002)
    Llibre
    Accés restringit a la comunitat UPC
    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 ...
  • A new auto-provisioned squat-based traffic management strategy for multiclass networks 

    Hesselbach Serra, Xavier; García Espinosa, Antonio (2009)
    Text en actes de congrés
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    In search of being able to offer better quality of service (QoS) in multiclass networks, a strategy that aims to allow resources between different classes of service (CoS) to be shared according to the class’s needs and ...
  • An NFV-based energy scheduling algorithm for a 5G enabled fleet of programmable unmanned aerial vehicles 

    Tipantuña, Christian; Hesselbach Serra, Xavier; Sánchez Aguero, Víctor; Valera Pintor, Francisco; Vidal Fernández, Iván; Nogales Dorado, Borja (2019-01-01)
    Article
    Accés obert
    The fifth generation of mobile networks (5G) is expected to provide diverse and stringent improvements such as greater connectivity, bandwidth, throughput, availability, improved coverage, and lower latency. Considering ...
  • A novel path computing framework under QoX constraints based on N&PV functions embedding 

    Hesselbach Serra, Xavier; Botero Vega, Juan Felipe; Amazonas, Jose Roberto (2015)
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    Network function virtualization (NFV) and software-defined networking (SDN) represent new paradigms in networking. In this paper, we extend the concept of NFV to include the functions associated to the physical objects of ...
  • 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; Almeida Amazonas, José Roberto de (2013-11)
    Article
    Accés restringit per política de l'editorial
    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: ...
  • A squatting based framework to enhance network virtualization allocation in optical networks 

    Hesselbach Serra, Xavier; Naumenko, Nikolay (2011)
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    This paper introduces a framework to enhance network virtualization allocation in optical networks. A new control plane approach for the new generation of electrical and optical networks technologies is presented. To ...
  • Comparacion de algoritmos para el mapeo de redes virtuales 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier (2011)
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    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, ...
  • 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 ...
  • Demand-response power management strategy using time shifting capabilities 

    Tipantuña, Christian; Hesselbach Serra, Xavier (Association for Computing Machinery (ACM), 2018)
    Text en actes de congrés
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    Energy efficiency is an important concern in the operation and deployment of the communications networks and cloud computing services, and due to the rising energy consumption, demand-response strategies are envisioned as ...
  • Design and analysis of a framework to enhance optical network utilization resources by means of virtualization 

    Hesselbach Serra, Xavier; Naumenko, Nikolay (IEEE, 2012)
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    The time for an all-optical network is already here. The huge capacity of the optical resources, in backbones, distribution and access networks cannot be completely used by current services. The remainders can be used under ...
  • 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 ...
  • E3MS: A traffic engineering prototype for autoprovisioning services in IP/DiffServ/MPLS networks 

    Hesselbach Serra, Xavier; García-Espín, Joan Antoni; Gonzalez, Miquel; Gonzalo, Javier; Figuerola, Sergi (2010)
    Text en actes de congrés
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    This paper presents the testbed definition, implementation and trials of a new strategy for traffic autoprovisioning for MPLS and IP/DiffServ. This is the proof of concept of a new scenario for traffic engineering, for ...
  • Energy and carbon emissions aware services allocation with delay for Data Centers 

    Guillén, Bernat; Hesselbach Serra, Xavier; Muñoz López, Francisco Javier; Klingert, Sonja (2013)
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    This paper presents a new approach to service assignment in Data Centers (DC), relating it to a classical combinatory problem called Bin Packing Problem and adding the possibility of delay and collaboration with users ...
  • Energy efficient virtual network embedding 

    Botero Vega, Juan Felipe; Hesselbach Serra, Xavier; Duelli, Michael; Schlosser, Daniel; Fischer, A.; de Meer, Hermann (2012-05)
    Article
    Accés restringit per política de l'editorial
    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)
    Text en actes de congrés
    Accés obert
    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)
    Text en actes de congrés
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    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 ...