Now showing items 1-20 of 66

    • 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 new auto-provisioned squat-based traffic management strategy for multiclass networks 

      Hesselbach Serra, Xavier; García Espinosa, Antonio (2009)
      Conference report
      Open Access
      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 ...
    • A novel admission control scheme for network slicing based on squatting and kicking strategies 

      Hamouda, Ahmed Mohamed Abdelaty Elmekkawi; Hesselbach Serra, Xavier; Piney da Silva, José Ramón (Universidad de Zaragoza (UZA), 2019)
      Conference report
      Open Access
      New services and applications impose differentquality of service (QoS) requirements on network slicing. Tomeet differentiated service requirements, current Internet servicemodel has to support emerging real-time applications ...
    • 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)
      Conference report
      Restricted access - publisher's policy
      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
      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: ...
    • A squatting based framework to enhance network virtualization allocation in optical networks 

      Hesselbach Serra, Xavier; Naumenko, Nikolay (2011)
      Conference report
      Restricted access - publisher's policy
      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 ...
    • Adaptive energy management in 5G network slicing: Requirements, architecture, and strategies 

      Tipantuña Tenelema, Christian José; Hesselbach Serra, Xavier (2020-08-02)
      Article
      Open Access
      Energy consumption is a critical issue for the communications network operators, impacting deeply the cost of the services, as well as the ecological footprint. Network slicing architecture for 5G mobile communications ...
    • 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 ...
    • An NFV-based energy scheduling algorithm for a 5G enabled fleet of programmable unmanned aerial vehicles 

      Tipantuña Tenelema, Christian José; Hesselbach Serra, Xavier; Sánchez Aguero, Víctor; Valera Pintor, Francisco; Vidal Fernández, Iván; Nogales Dorado, Borja (2019-01-01)
      Article
      Open Access
      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 ...
    • 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 ...
    • Broadband Networks and Services 

      Hesselbach Serra, Xavier; Seyfettin Demirkol, Ilker (Universitat Politècnica de Catalunya, 2013-01-14)
      Exam
      Restricted access to the UPC academic community
    • 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, ...
    • 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
      Open Access
      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 Tenelema, Christian José; Hesselbach Serra, Xavier (Association for Computing Machinery (ACM), 2018)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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
      Open Access
      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)
      Conference report
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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 ...