We investigate the optimization of routing, modulation format adaptation, spectral and
launch power assignment as a means of improving the utilization of limited network …

Using well-established results on nonlinear propagation modeling in coherent optical links,
two different approaches for network planning are addressed and compared in terms of …

Abstract Design of DWDM lines requires calculation of optimal input powers for each span. It
is called “optimization of DWDM network”. Different approaches are currently used to solve …

Distributed and global power control strategies have been successfully applied to cascade
of optical amplifiers with the aim of improving circuit OSNR values in WDM networks. For …

We study the impact of different fibers with moderate pumping hybrid amplification in
transparent networks using elastic transponders based on pure (PMF) or hybrid (TDHMF) …

This paper describes a comprehensive network model which sufficiently captures the noise
impairments in the physical layer due to in-line EDFA amplifiers, non-linear impairments in …

We focus on the design of the logical layer on an optical infrastructure for three different
architectures: fixed grid WDM with fixed-rate multilevel modulation (WDM-FRMF), fixed grid …

Flexgrid technology is an interesting solution to improve network capacity. However, for a
given spectral band, it gives rise to the increase of the number of channels, requiring more …

We investigated the variability of non-linearity generation in dynamically-reconfigurable
network scenarios with re-routing, non-homogenous formats and variable accumulated …

The routing and spectrum assignment in nonlinear flexible-grid networks is extended by
optimizing the power separately for each connection. This yields 24% bandwidth reduction …