Now showing items 1-11 of 11

    • Experimental demonstration of active and passive optical networks telemetry 

      Gifre Renom, Lluís; Izquierdo Zaragoza, José Luis; Behnam Shariati, Mohammad; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      A distributed architecture enabling active and passive optical network telemetry is presented; a YANG data model is used for remotely configuring monitoring devices for telemetry purposes. Experimental demonstration is ...
    • Feature-based optical spectrum monitoring for failure detection and identification 

      Behnam Shariati, Mohammad; Ruiz Ramírez, Marc; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (2019)
      Conference report
      Open Access
      In this paper, we explore the benefits of analysing the optical spectrum of lightpaths for soft-failure detection and identification in Spectrum Switched Optical Network. We present a framework exploiting machine learning ...
    • Free space intra-datacenter interconnection utilizing 2D optical beam steering 

      Behnam Shariati, Mohammad; Bogris, A.; Dijk, P.V.; Roeloffzen, C.; Tomkos, Ioannis; Syvridis, D (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      We evaluate the performance and benefits of novel integrated Free-Space-Optics (FSO) transceivers, supporting optical beam steering at low power consumption with ns steering speed. A proper intra-datacenter network ...
    • High capacity optical networks based on space division multiplexing 

      Behnam Shariati, Mohammad; Comellas Colomé, Jaume; Klonidis, Dimitrios; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (John Wiley & sons, 2017-09-01)
      Part of book or chapter of book
      Restricted access - publisher's policy
      This book discusses Elastic Optical Networks (EONs) from an operational perspective. It presents algorithms that are suitable for real-time operation and includes experimental results to further demonstrate the feasibility ...
    • Impact of filter sharpness on the performance of elastic optical networks 

      Sayyad Kodashenas, Pouria; Rivas Moscoso, José Manuel; Klonidis, Dimitrios; Tomkos, Ioannis; Behnam Shariati, Mohammad; Comellas Colomé, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      Elastic optical network (EON) technology arises as a promising solution for future high-speed optical transport networks, inasmuch as it can provide superior flexibility and scalability in the spectrum allocation for ...
    • Impact of spatial and spectral granularity on the performance of SDM networks based on spatial superchannel switching 

      Behnam Shariati, Mohammad; Rivas Moscoso, José Manuel; Marom, Dan M.; Ben Ezra, Shalva; Klonidis, Dimitrios; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (2017-07-01)
      Article
      Open Access
      Spatially integrated switching architectures have been recently investigated in an attempt to provide switching capability for networks based on spatial division multiplexing (SDM) fibers, as well as to reduce the ...
    • Learning from the optical spectrum: failure detection and identification [Invited] 

      Behnam Shariati, Mohammad; Ruiz Ramírez, Marc; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018-07-23)
      Article
      Open Access
      The availability of coarse-resolution cost-effective Optical Spectrum Analyzers (OSA) allows its widespread deployment in operators’ networks. In this paper, we explore several machine learning approaches for soft-failure ...
    • Learning from the optical spectrum: soft-failure identification and localization 

      Velasco Esteban, Luis Domingo; Behnam Shariati, Mohammad; Vela, Alba P.; Comellas Colomé, Jaume; Ruiz Calvo, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      The availability of coarse-resolution cost-effective Optical Spectrum Analyzers (OSA) allows its widespread deployment in operators' networks. In this paper, several machine learning approaches for failure identification ...
    • On the benefits of FMF based data center interconnection utilizing MIMO-less PAM-M transceivers 

      Behnam Shariati, Mohammad; Diamantopoulos, Nikolaos-Panteleimon; Klonidis, Dimitrios; Comellas Colomé, Jaume; Tomkos, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference lecture
      Restricted access - publisher's policy
      Space division multiplexing (SDM) has been proposed to cost-effectively increase the capacity of optical transmission systems. The cost savings can be realized by introducing some levels of spatial integration of elements. ...
    • Optimum CSPR evaluation of heterodyne envelope receivers in OFDM-PONs 

      Behnam Shariati, Mohammad; Cano Valadéz, Iván Nicolás; Santos Blanco, M. Concepción (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      A heterodyne envelope (HE) receiver (RX) is investigated in the context of orthogonal frequency division multiplexing (OFDM) passive optical networks (PONs). Impacts of limited roll-off factor of shaping filter and required ...
    • Soft failure localization during commissioning testing and lightpath operation 

      Pérez Vela, Alba; Behnam Shariati, Mohammad; Ruiz Ramírez, Marc; Cugini, Filippo; Castro Casales, Alberto; Lu, Hongbo; Proietti, Roberto; Comellas Colomé, Jaume; Castoldi, Piero; Yoo, Sung-Joo Ben; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-09)
      Article
      Open Access
      In elastic optical networks (EONs), effective soft failure localization is of paramount importance to early detection of service level agreement violations while anticipating possible hard failure events. So far, failure ...