Results 41 to 50 of about 347 (102)
Optimization of Subcarrier Spacing of 400-Gb/s Dual-Carrier Nyquist PDM-16QAM in a Flexgrid Scenario
, 2022 S.1098-1100For a 448-Gb/s dual-carrier 28-GBd Nyquist PDM-16QAM data signal we investigate experimentally the trade-off between inter-subcarrier crosstalk and tight optical filtering after passing through a wavelength selective switch at Flexgrid channel
Meuer, C. +6 more
core +1 more source
, 2014 A specialized high performance Graphics Processing Unit (GPU)-based back-end Path Computation Element (PCE) to compute re-optimization in Flexgrid networks is presented.
Gifre Renom, Lluís +7 more
core +1 more source
Assessing the health of flexgrid optical networks
, 2020 This paper focuses on quantifying the efficiency of different methods used to allocate resources in flexgrid optical networks. These methods are based on a recently proposed integer linear programming formulation of the routing and spectrum assignment (RSA) problem that takes into account all possible paths and thus theoretically yields optimal ...
Chouman, Hussein +6 more
openaire +1 more source
The network capacity benefits of Flexgrid
Wavelength Division Multiplexing (WDM) networks of the future are likely to use Flexgrid, providing operators with additional flexibility when assigning spectrum compared to traditional WDM networks using the 50GHz ITU grid.
Wright, Paul +2 more
core
A traffic intensity model for flexgrid optical network planning under dynamic traffic operation
, 2013 We obtain a model to estimate the highest traffic intensity that a flexgrid-based network can support in dynamic scenarios. A design problem is introduced to illustrate its application.
Ruiz Ramírez, Marc +3 more
core +1 more source
Designing national IP/MPLS networks with flexgrid optical technology
We propose a two-step procedure to design flexgrid-based national networks. Locations are first partitioned into a set of metro areas interconnected through a flexgrid optical network. Next, each network is designed separately.
Junyent Giralt, Gabriel +3 more
core
Dynamic restoration in multi-layer IP/MPLS-over-flexgrid networks
, 2013 The recent advances in photonic technology will allow deploying flexgrid-based optical core networks in the near future. Although that technology favors more efficient spectrum utilization, multilayer IP/MPLS-over-flexgrid networks would still be needed ...
Comellas Colomé, Jaume +3 more
core +1 more source
Planning fixed to flexgrid gradual migration: drivers and open issues
Flexgrid technology has recently been presented as the most promising option for upgrading the currently operating fixed grid optical networks and extending their capacity to be able to deal with the massive traffic volumes forecast for the next decade ...
Ruiz Ramírez, Marc +6 more
core
Extending the flexgrid optical core towards the edges
National IP/MPLS network have being designed on top of fixed-grid DWDM optical networks so to spread out covering large areas. Besides, multilayer IP/MPLS-over-DWDM networks take advantage from grooming to achieve high spectrum efficiency, filling the ...
Ruiz Ramírez, Marc +3 more
core
, 2014 A PCE-based strategy for LSP re-optimization in flexgrid optical networks is experimentally validated. A front- and back-end stateful PCE architecture is deployed, wherein automatic and coordinated operations (e.g., computation delegation, database ...
Gifre Renom, Lluís +5 more
core +1 more source