Now showing items 1-13 of 13

  • Assessment of Flex-Grid/MCF optical networks with ROADM limited core switching capability 

    Rumipamba Zambrano, Rubén Darío; Moreno-Muro, F. J.; Pavón-Marino, Pablo; Perelló Muntan, Jordi; Spadaro, Salvatore; Solé Pareta, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Open Access
    The majority of the research studies on Flex-Grid over multi-core fiber (Flex-Grid/MCF) networks are built on the assumption of fully non-blocking ROADMs (FNB-ROADMs), able to switch any portion of the spectrum from any ...
  • Capacity quantification of joint-switching-enabled flex- grid/SDM optical backbone networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (Optical Society of American (OSA), 2017)
    Conference report
    Open Access
    We quantify the network capacity scaling from 7 to 30 spatial channels. While multifiber provides a 5x capacity increase, MCF limits it to 4x and 2x in national and continental backbone networks, respectively.
  • Contributions to network planning and operation of Flex-Grid/SDM optical core networks 

    Rumipamba Zambrano, Rubén Darío (Universitat Politècnica de Catalunya, 2019-03-14)
    Doctoral thesis
    Open Access
    The ever demanding bandwidth requirements for supporting emerging telecom services such as ultra-high-definition video streaming, cloud computing, connected car, virtual/augmented reality, etc., bring to the fore the ...
  • Cost-effective spatial super-channel allocation in Flex-Grid/MCF optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (2018-01-01)
    Article
    Open Access
    Space Division Multiplexing (SDM) is a key technology to cope with the bandwidth limitations of single mode fibers. Multi-Core Fibers (MCFs) are considered as a promising candidate technology to implement SDM, due to their ...
  • Dynamic Buffer Size Allocation in Wireless Networks for Non-Elastic Traffic 

    Rumipamba Zambrano, Rubén Darío (Universitat Politècnica de Catalunya, 2014-01-08)
    Master thesis
    Open Access
    The dimensioning of the buffers in communication devices (routers and switches) is an important aspect to take into account since it affects some parameters of network performance such as: loss probability, end-to-end delay ...
  • Dynamic traffic grooming in Joint Switching (JoS)-enabled flex-grid/SDM optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    We propose and evaluate a dynamic traffic grooming strategy enhancing the performance of JoS-enabled Flex-Grid/SDM networks. Results disclose up to 120% and 44% additional carried network traffic vs. no grooming and existing ...
  • Elastic Networks thematic network results I: Planning and control of Flex-Grid/SDM 

    Moreno Muro, Francisco Javier; Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Pavón Mariño, Pablo; Solé Pareta, Josep; Martínez, Ricardo; Casellas Regi, Ramón; Vilalta, Ricard; Muñoz González, Raul; Mata Sáez, Javier; Ruiz Pérez, Lidia; Merayo Álvarez, Noemí; Miguel Jiménez, Ignacio de; Durán Barroso, Ramón J. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    This paper overviews the approach of the Elastic Networks research network to address different issues of planning and control of Flex-Grid/SDM optical networks. Firstly, we present the Net2Plan open-source planning tool ...
  • Evaluation of core-continuity-constrained ROADMs for flex-grid/MCF optical networks 

    Moreno Muro, Francisco Javier; Rumipamba Zambrano, Rubén Darío; Pavón Mariño, Pablo; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
    Article
    Open Access
    To effectively keep pace with the global IP traffic growth forecasted in the years to come, flex-grid over multi-core fiber (MCF) networks can bring superior spectrum utilization flexibility, as well as bandwidth scalability ...
  • Inter-core crosstalk impact on migration planning from elastic optical networks to spectrally-spatially flexible optical networks 

    Lechowicz, Piotr; Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore; Walkowiak, Krzysztof (Optical Society of American (OSA), 2019)
    Conference report
    Restricted access - publisher's policy
    We study inter-core crosstalk (ICXT) impact on migration planning toward spectrally-spatially flexible optical networks considering 22-core multi-core fiber. Results reveal that 55-70% of links need to be upgraded when ...
  • Migration planning from elastic optical networks to spectrally-spatially flexible optical networks 

    Lechowicz, Piotr; Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore; Walkowiak, Krzysztof (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    We focus on a migration planning from elastic to spectrally-spatially flexible optical networks by upgrading regular with SDM-capable ROADMs. Our most promising strategy reveals that by migrating 30% of the regular ROADMs ...
  • On the scalability of dynamic Flex-Grid/SDM optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (2018-09-04)
    Article
    Restricted access - publisher's policy
    Future optical core networks realizing Flex-Grid and Space Division Multiplexing (Flex-Grid/SDM) will be key to effectively cope with the rapid growth of the Internet traffic, thanks to their superior capacity and spectrum ...
  • Route, modulation format, MIMO and spectrum assignment in Flex-Grid/MCF transparent optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2018-08-15)
    Article
    Open Access
    In this paper, we target an optimal multiple-input multiple-output digital signal processing (MIMO-DSP) assignment to super-channels affected by intercore crosstalk (ICXT) in multicore fiber (MCF) enabled transparent optical ...
  • Space continuity constraint in dynamic Flex-Grid/SDM optical core networks: An evaluation with spatial and spectral super-channels 

    Rumipamba Zambrano, Rubén Darío; Moreno Muro, Francisco Javier; Perelló Muntan, Jordi; Pavón Mariño, Pablo; Spadaro, Salvatore (Elsevier, 2018-08)
    Article
    Restricted access - publisher's policy
    Space Division Multiplexing (SDM) appears as a promising solution to overcome the capacity limits of single-mode optical fibers. In Flex-Grid/SDM optical networks, nodes offering full interconnection between input/output ...