Traffic grooming is a central problem in optical networks. It refers to packing low rate signals
into higher speed streams, in order to improve bandwidth utilization and reduce network …

All-optical networks transmit messages along lightpaths in which the signal is transmitted
using the same wavelength in all the relevant links. We consider the problem of switching …

Traffic grooming is a central problem in optical networks. It refers to pack low rate signals
into higher speed streams, in order to improve bandwidth utilization and reduce network …

We study a graph partitioning problem which arises from traffic grooming in optical networks.
We wish to minimize the equipment cost in a SONET WDM ring network by minimizing the …

We study the following graph partitioning problem: Given two positive integers C and Δ, find
the least integer M(C,Δ) such that the edges of any graph with maximum degree at most Δ …

In an optical network using the wavelength division multiplexing (WDM) technology, routing
a request consists of assigning it a route in the physical network and a wavelength. If each …

La premi ere partie de cette th ese s' int eresse au groupage de tra c dans les r eseaux de t
el ecommunications. La notion de groupage de tra c correspond a l'agr egation de ux de …

In this paper, we propose a static traffic grooming method, where both wavelength layered
graph and evaluation function are deployed with the objective of maximizing Quality of …

In this thesis, we studied the all-optical multicast routing (AOMR) problem in wavelength-
routed WDM networks. The objective is to find a set of light structures, for instance a light …

Résumé Dans cette thèse, nous étudions le routage multicast tout optique (AOMR) dans les
réseaux WDM. Notre objectif est de trouver un ensemble de structures de diffusion, par …