BRuIT : Bandwidth Reservation Under InTerferences influence

Claude Chaudet, Isabelle Guérin-Lassous, 69 - Lyon (France). Lab. de l'Informatique du Parallelisme Centre National de la Recherche Scientifique (CNRS), 69 (France). Lab. de l'Informatique du Parallelisme Ecole Normale Superieure de Lyon, 69 (France). Lab. de l'Informatique du Parallelisme Lyon-1 Univ. · 2001

This paper deals with the bandwidth reservation problem in ad hoc networks and with the influence that interferences between signals have on this problem. We show that interferences could decrease the applications rates. This can be a real problem for applications that need guarantees. We propose a distributed protocol (called BRuIT) for bandwidth reservation in ad hoc networks that takes into account the existence of interferences from far transmissions. The protocol is analyzed through simulations carried out under NS: we evaluate the signaling overhead required for maintaining the knowledge of existing interferences; we show that this knowledge reduces delays in case of congestion; we measure the time for rebuilding broken routes; and finally we show that this protocol maintains the rate of accepted applications.

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