Reducing latency and overhead of route repair with controlled flooding

  • Authors:
  • Luís Henrique M. K. Costa;Marcelo Dias De Amorim;Serge Fdida

  • Affiliations:
  • GTA/COPPE/EE, Universidade Federal do Rio de Janeiro, P.O. Box 68504, 21945-970 Rio de Janeiro, RJ, Brasil;Laboratoire LIP6, Université Pierre et Marie Curie, 8, rue du Capitaine Scott, 75015 Paris, France;Laboratoire LIP6, Université Pierre et Marie Curie, 8, rue du Capitaine Scott, 75015 Paris, France

  • Venue:
  • Wireless Networks
  • Year:
  • 2004

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Abstract

Ad hoc routing protocols that use broadcast for route discovery may be inefficient if the path between any source-destination pair is frequently broken. We propose and evaluate a simple mechanism that 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. The proposed system is based on the Controlled Flooding (CF) framework, where alternative routes are established around the main original path between source-destination pairs. With alternative routing, data packets are forwarded through a secondary path without requiring the source to re-flood the whole network, as may be the case in AODV. We are interested in one-level alternative routing. We show that our proposal reduces the connection disruption probability as well as the frequency of broadcasts.