We propose lightpath establishment techniques for transparent optical networks, valid for
both centralized path computation (ie, performed by a path computation element—PCE) and …

In translucent optical networks, the physical layer impairments degrading the optical signal
are considered in the network planning. In this paper, we investigate the offline problem of …

The emergence of Elastic Optical Networks allowed a more flexible spectrum allocation for
routing traffic demands within telecommunication networks. From this context arises the …

In this study, we introduce the regenerator location problem in flexible optical networks. With
a given traffic demand, the regenerator location problem in flexible optical networks …

Physical layer impairments (PLIs) need to be considered in the routing and wavelength
assignment (RWA) process of all-optical networks to ensure the provisioning of good quality …

Experimental Demonstration of Centralized and Distributed Impairment-Aware Control
Plane Schemes for Dynamic Transparent Optical Page 1 Experimental Demonstration of …

In the last years, the migration from 10 to 40/100 Gbps networks has been proposed as a
solution to increase the capacity of transparent optical networks. Initially, the replacement of …

We propose a methodology to design the link cost function and, consequently, a systematic
form to design a RWA algorithm. We call this methodology link cost function design (LCFD) …

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 …

We study strategies for relaxing physical layer constraints in flexible transparent optical
transport networks through traffic engineering as well as through impairment-aware traffic …