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 …

Optical networks are moving from opaque and translucent architectures towards all-optical
(transparent) architectures. In translucent architectures a small amount of regeneration (eg …

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

We consider the offline version of the routing and wavelength assignment (RWA) problem in
transparent all-optical networks. In such networks and in the absence of regenerators, the …

We propose a model that considers several physical impairments in all-optical networks
based on optical signal-to-noise degradation. Our model considers the gain saturation effect …

This paper presents solutions towards an efficient and intelligent network infrastructure for
Grid services, taking advantage of recent developments in optical-networking technologies …

In this paper, we describe the approaches taken in the 4WARD project to address the
challenges of the network of the future. Our main hypothesis is that the Future Internet must …

The need for high data rates in telecommunications requires the constant search for
improvements in these systems, especially in minimizing spectrum idleness in optical …

In this paper, we consider the problem of routing and wavelength assignment (RWA) in all-
optical networks, where signals propagate in the optical domain (with no electrical …

In WDM all-optical networks where electrical regeneration is not available, physical
impairments due to propagation in the fibers, amplifier noise, and leaks between channels …