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Ara es mostren els items 177-182 de 182

    • Valid inequalities for the routing and spectrum allocation problem in elastic optical networks 

      Klinkowski, Miroslaw; Pioro, Michal; Zotkiewicz, Mateusz; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      We deal with a natural integer-linear programming formulation of the routing and spectrum allocation (RSA) problem in elastic optical networks. We focus on strengthening the formulation with valid inequalities (cuts). For ...

    • Virtual network topology adaptability based on data analytics for traffic prediction 

      Morales Alcaide, Fernando; Ruiz Ramírez, Marc; Gifre Renom, Lluís; Contreras Murillo, Luis Miguel; López Álvarez, Victor; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017-01-26)
      Article
      Accés obert
      The introduction of new services requiring large and dynamic bitrate connectivity can cause changes in the direction of the traffic in metro and even core network segments throughout the day. This leads to large overprovisioning ...

    • Virtual network topology reconfiguration based on big data analytics for traffic prediction 

      Morales Alcaide, Fernando; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (OSA, 2016)
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      Big data analytics is applied for IP traffic prediction. When the virtual topology needs to be reconfigured, predicted and current traffic matrices are used to find the optimal topology. Exhaustive simulation results reveal ...

    • Visualization tools for enhancing failure localization [Invited] 

      Pérez Vela, Alba; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2019)
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      Accés obert
      The use of data visualization techniques is explored to guide human operators in failure localization tasks. In this paper, we consider the case where a subset of lightpaths’ experience gradual BER degradation. We aim at ...

    • Vulnerability modelling for periodical flexgrid network planning 

      Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Accés restringit per política de l'editorial
      Dynamic flexgrid optical networks are being developed to operate under highly changing traffic scenarios. Planning such optical networks is fully dependent on the traffic characteristics whereas the constant traffic evolution ...

    • ZIZO: A Zoom-In Zoom-Out mechanism for minimizing redundancy and saving energy in wireless sensor networks 

      El Sayed, Ahmad Mohammad; Harb, Hassan; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2021-02-01)
      Article
      Accés obert
      In modern life, there is invisible data being continuously generated, data that if collected and processed can detect risks and changes and enable us to mitigate their effect. Thus, there is an essential need to sense ...