In WDM optical networks, the physical layer impairments (PLIs) and their significance
depend on network type-opaque, translucent, or transparent; the reach-access, metro, or …

Since light-paths are the basic connections in wavelength routed networks, their effective
establishment is very important. Routing and Wavelength Assignment (RWA) techniques …

Flexi-grid technology has emerged as the evolution of fixed-grid DWDM core optical
networks, enabling more efficient utilization of spectral resources and leading to higher …

In the evolution from opaque networks, using 3R regenerators and OEO conversions for
every wavelength channel, towards transparent networks, relying on end-to-end all-optical …

Advances in optical transmission technology are driving the evolution from legacy opaque
toward transparent backbone networks. Aiming at reducing the costs and energy …

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 …

We study single path-based heuristics with ranking and redirection, and connectivity
dependent heuristics based on k-center and connected dominating set problems, for …

We propose a semicentralized semidistributed network architecture based on active stateful
path computation elements (PCEs) to intelligently provide end-to-end inter-domain …

This paper defines three types of race conditions that may occur while attempting to reserve
optical circuits in GMPLS WDM networks. It then investigates the effect on network blocking …

A framework for regenerator site selection based on multiple paths Page 1 A Framework for
Regenerator Site Selection Based on Multiple Paths Chava Vijaya Saradhi1, Andrea …