Reduzindo a Frequência de Inundações em Protocolos de Roteamento Ad Hoc Sob Demanda

Luís Henrique M. K. Costa1Marcelo D. de AmorimSerge Fdida

Ad hoc routing protocols that use broadcast for route discovery may be inefficient if the path between any source-destination pair is frequently broken. In this paper, we propose and evaluate the Controlled Flooding (CF) mechanism, which allows fast route repair in on demand ad hoc routing protocols. We apply our proposal to the Ad hoc On-demand Distance Vector (AODV) routing protocol. Using the CF technique, alternative routes are established around the main original path between source-destination pairs. In case of route failure, data packets are forwarded through a secondary path without requiring the source to re-flood the network. We show that AODV-CF reduces the connection disruption probability as well as the need for network-wide broadcasts.

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