Completely independent spanning trees for enhancing the robustness in ad-hoc Networks

Axel Moinet (1) , Benoit Darties (1) , Nicolas Gastineau (2) , Jean-Luc Baril (1) , Olivier Togni (1)

1 Le2i - Laboratoire Electronique, Informatique et Image [UMR6306]
2 LAMSADE - Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision

We investigate the problem of computing Completely Independent Spanning Trees (CIST) under a practical approach. We aim to show that despite CISTs are very challenging to exhibit in some networks, they present a real interest in ad-hoc networks and can be computed to enhance the network robustness. We propose an original ILP formulation for CISTs and we show through simulation results on representative network models that several CISTs can be computed when the network density is sufficiently high. These results tend to reinforce the interest of CISTs for various network operations such as robustness, load-balancing, traffic splitting,. .. As an important point, our results show that both the density and the number of nodes have an impact on the number of CISTs that can be found on ad-hoc networks.

Mots clés: Completely Independent Spanning Tree; CIST; Integer Linear Programming; Quasi-Unit Disk Graph

Domaines: Réseaux et télécommunications [cs.NI]; Mathématique discrète [cs.DM]; Complexité [cs.CC]

Axel Moinet, Benoit Darties, Nicolas Gastineau, Jean-Luc Baril, Olivier Togni. Completely independent spanning trees for enhancing the robustness in ad-hoc Networks. 2017 IEEE 13th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Oct 2017, Rome, Italy. ⟨10.1109/WiMOB.2017.8115791⟩. ⟨hal-01715916⟩