Partage équitable de la bande passante dans les réseaux ad hoc

Rémi Vannier (1) , Isabelle Guérin-Lassous (1)

1 LIP - Laboratoire de l'Informatique du Parallélisme

Some previous works have shown that the DCF mode within the IEEE 802.11 standard can be inappropriate for many ad hoc configurations. In some situations, the bandwidth allocation between multiple flows can be extremely unfair. Some solutions have already attempted to solve these problems, either by modifying the MAC layer, or by regulating the flow throughput at a higher level. The latter are usually based upon a complex interference model using link contention graphs, thus making the resulting bandwidth allocation algorithms hard to use practically. In this article, we propose a distributed and dynamic bandwidth allocation algorithm based on a simpler model. We show by simulation that the quality of the resulting allocations are roughly equivalent in both models, even though the algorithms are greatly simplified.

Mots clés: réseaux ad hoc; équité; allocation de bande passante

Domaines: Réseaux et télécommunications [cs.NI]

Rémi Vannier, Isabelle Guérin-Lassous. Partage équitable de la bande passante dans les réseaux ad hoc. Colloque Francophone sur l'Ingénierie des Protocoles (CFIP), Mar 2008, Les Arcs, France. ⟨hal-00250058⟩