Thierry ARRABAL : "Design of a simulator and cross layer protocols for dense electromagnetic nanonetworks"

PhD Works of Thierry ARRABAL : "Design of a simulator and cross layer protocols for dense electromagnetic nanonetworks"

Abstract : The miniaturization of equipment leads to the appearance of nano-sized machines. These nanomachines have very limited resources. A specific modulation for nanometric antennas has been proposed. It is based on very short pulses (100 fs) and a large spacing between these pulses. The result is a channel with a very high bandwidth (several Tb/s) and a high time multiplexing. 

The work carried out during this thesis allowed the development of algorithms and protocols adapted to this new environment and very different from standard environments. The contributions made concern several network layers. A sleep method that takes into account the specificities of pulse communications and the time scales involved. A protocol for estimating the number of neighbours capable of managing a wide range of densities. It operates on a network with a very heterogeneous density. A counter-based data dissemination protocol that drastically reduces the number of forwardees while maintaining very high coverage. Finally, a road deviation algorithm to detect and bypass congestion points was also proposed. These protocols aim to manage congestion within nanonetworks and can therefore be considered as fulfilling transport layer functionalities.

Nanomachines are not yet available on the market, and our problems concern a very large number of communicating agents, which can lead to emerging behaviours that are difficult to model mathematically. For all these reasons, we have chosen to turn to simulation. To do this, we have developed a simulator specially designed for nano-arrays. Being very specific, the performance of this simulator is superior to the performance of existing simulators capable of simulating nano-arrays. The results obtained by simulations have been corroborated by mathematical studies.

Composition du jury :

Eugen DEDU, University Professor , Université de Franche-Comté,PhD Director

Ye-Qiong SONG,University Professor, Laboratoire lorrain de recherche en informatique et ses applications, Reporter

André-Luc BEYLOT, University Professor, Institut de Recherche en Informatique de Toulouse, Reporter

Isabelle GUÉRIN-LASSOUS, University Professor, Laboratoire de l'Informatique du Parallélisme, Reviewer

Dominique DHOUTAUT, Maître de Conférences, Université de Franche-Comté, PhD Co-supervisor

Localization : IUT Belfort-Montbéliard Dpt. Réseaux & Télécommunications 25200 Montbéliard - salle Amphithéâtre 2