Now showing items 1-19 of 19

  • An elastic networks OMNeT++-based simulator 

    Asensio Garcia, Adrian; Castro Casales, Alberto; Velasco Esteban, Luis Domingo; Comellas Colomé, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    An increasing number of studies about flexgrid-based elastic optical networks are currently being carried out by industry as well as academic research teams. As access to real test-beds is limited, there is a lack of ...
  • Carrier SDN for flexgrid-based inter-datacenter connectivity 

    Asensio Garcia, Adrian; Gifre Renom, Lluís; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Managing inter-datacenter (DC) connectivity to transport increasing amounts of data and optimize DC performance and costs becomes a challenge not only for DC operators but also for network operators. Current inter-DC ...
  • Comparing single layer and multilayer approaches to serve multicast requests on flexgrid networks 

    Gifre Renom, Lluís; Ruiz Ramírez, Marc; Asensio Garcia, Adrian; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    Advanced services require high bitrate multicast connectivity being provided by core transport networks. Multicast services can be supported by a tree connecting the source to every destination of the multicast request. ...
  • Cross-stratum orchestration and flexgrid optical networks for datacenter federations 

    Velasco Esteban, Luis Domingo; Asensio Garcia, Adrian; Castro Casales, Alberto; Berral García, Josep Lluís; Carrera Pérez, David; López, Víctor; Fernández Palacios, Juan Pedro (2013-11)
    Article
    Restricted access - publisher's policy
    Current inter-data-center connections are configured as static big fat pipes, which entails large bit rate over-provisioning and thus high operational costs for DC operators. On the other hand, network operators cannot ...
  • Dynamic virtual network connectivity for C-RAN backhauling 

    Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    Aiming at satisfying in a cost-effective manner the forecast traffic growth that future mobile networks will need to support, traditional distributed Radio Access Networks (RANs) are evolving towards centralized ...
  • ESTRUCTURA DE COMPUTADORS I (Examen 2n quadrimestre) 

    Asensio Garcia, Adrian; García Almiñana, Jordi (Universitat Politècnica de Catalunya, 2018-06-08)
    Exam
    Restricted access to the UPC academic community
  • INTRODUCCIÓ ALS COMPUTADORS. Final (Curs 2017/2018 - Q2) 

    Rodríguez García, Antonio; Asensio Garcia, Adrian (Universitat Politècnica de Catalunya, 2018-06-01)
    Exam
    Restricted access to the UPC academic community
  • INTRODUCCIÓ ALS COMPUTADORS. Final (Curs 2018/2019 - Q1) 

    Sánchez López, Sergio; Asensio Garcia, Adrian (Universitat Politècnica de Catalunya, 2019-01-07)
    Exam
    Restricted access to the UPC academic community
  • INTRODUCCIÓ ALS COMPUTADORS. Parcial (Curs 2017/2018 - Q1) 

    Asensio Garcia, Adrian; Olivé Durán, Ángel; Sánchez López, Sergio (Universitat Politècnica de Catalunya, 2017-11-03)
    Exam
    Restricted access to the UPC academic community
  • INTRODUCCIÓ ALS COMPUTADORS. Parcial (Curs 2017/2018 - Q2) 

    Asensio Garcia, Adrian; Rodríguez García, Antonio (Universitat Politècnica de Catalunya, 2018-04-13)
    Exam
    Restricted access to the UPC academic community
  • INTRODUCCIÓ ALS COMPUTADORS. Parcial (Curs 2018/2019 - Q1) 

    Asensio Garcia, Adrian; Sánchez López, Sergio (Universitat Politècnica de Catalunya, 2018-11-05)
    Exam
    Restricted access to the UPC academic community
  • iONE: an environment for experimentally assessing in-operation network planning algorithms 

    Gifre Renom, Lluís; Navarro, Nacho; Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    Huge amount of algorithmic research is being done in the field of optical networks, including Routing and Spectrum Allocation (RSA), elastic operations, spectrum defragmentation, and other re-optimization algorithms. ...
  • Meeting the requirements to deploy cloud RAN over optical networks 

    Velasco Esteban, Luis Domingo; Castro Casales, Alberto; Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Liu, G.; Qin, C.; Proietti, Roberto; Yoo, Sung-Joo Ben (Optical Society of America, 2017-03-01)
    Article
    Open Access
    Radio access network (RAN) cost savings are expected in future cloud RAN (C-RAN). In contrast to traditional distributed RAN architectures, in C-RAN, remote radio heads (RRHs) from different sites can share baseband ...
  • Minimizing energy costs in federated datacenters under uncertain green energy availability 

    Ruiz Ramírez, Marc; Asensio Garcia, Adrian; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    The cost of energy represents, by far, the largest fraction of total operational expenditures that datacenter operators ought to face. For this very reason, several studies have focused on evaluating how such energy costs ...
  • Orchestrating connectivity services to support elastic operations in datacenter federations 

    Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2015-06)
    Article
    Open Access
    Datacenter federations are able to manage appropriately the green energy resources available in each datacenter (DC) thanks to their geographically distributed infrastructure, thus reducing energy expenditure. Scheduling ...
  • Orchestrating datacenters and networks to facilitate the telecom cloud 

    Asensio Garcia, Adrian (Universitat Politècnica de Catalunya, 2016-06-10)
    Doctoral thesis
    Open Access
    In the Internet of services, information technology (IT) infrastructure providers play a critical role in making the services accessible to end-users. IT infrastructure providers host platforms and services in their ...
  • Routing and scheduled spectrum allocation for transfer-based datacenter connections 

    Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    Creating datacenter (DC) federations allows DC operators to reduce costs and increase their revenues from using under-utilized resources as well as to expand their geographical coverage aiming to improve users' Quality of ...
  • Towards a carrier SDN: an example for elastic inter-datacenter connectivity 

    Velasco Esteban, Luis Domingo; Berral García, Josep Lluís; Asensio Garcia, Adrian; Castro Casales, Alberto; López, Víctor (2013)
    Conference report
    Open Access
    We propose a network-driven transfer mode for cloud operations in a step towards a carrier SDN. Inter-datacenter connectivity is requested in terms of volume of data and completion time. The SDN controller translates and ...
  • Using spectrum management techniques to differentiate services in elastic optical networks 

    Comellas Colomé, Jaume; Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Junyent Giralt, Gabriel; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    Elastic Optical Networks (EONs) have emerged as a promising solution to cope with the growth and heterogeneity of networks data traffic. Nevertheless, several problems arise in dynamic scenarios, being spectrum fragmentation ...