Lightpath reconfiguration is a networking task that can be performed in order to improve
resource utilization. The lightpath reconfiguration problem becomes nontrivial when a new …

Abstract The Network Decontamination problem consists of coordinating a team of mobile
agents in order to clean a contaminated network. The problem is actually equivalent to …

Reconfiguration is one of the most important capabilities of WDM networks, together with
high bandwidth and long reach. In this paper, we survey the state-of-the-art technologies of …

Optical multilayer optimization continuously reorganizes layer 0-1-2 network elements to
handle both existing and dynamic traffic requirements in the most efficient manner. This …

Path decompositions of graphs are an important ingredient of dynamic programming
algorithms for solving efficiently many NP-hard problems. Therefore, computing the …

We consider a variant of the graph searching games that models the routing reconfiguration
problem in WDM networks. In the digraph processing game, a team of agents aims at …

This thesis focuses on the study of structural properties of graphs whose understanding
enables the design of efficient algorithms for solving optimization problems. We are …

In a WDM network, setting up a new wavelength in a fiber requires recalibrating the other
wavelengths passing through this fiber. This induces a cost (eg, time, energy, degradation of …

Dynamic traffic leads to bandwidth fragmentation, which drastically reduces network
performance, resulting in increased blocking rate and reduced bandwidth usage. When …

Optical multilayer optimization periodically reorganizes layer 0-1-2 network elements to
handle both existing and dynamic traffic requirements in the most efficient manner. This …