OLSR-R3: optimised link state routing with reactive route recovery

Authors:
Jerry Chun-Ping Wang;Mehran Abolhasan;Daniel R. Franklin;Farzad Safaei
Affiliations:
Information & Communication Technology Research Institute, University of Wollongong, Wollongong, NSW, Australia;Information & Communication Technology Research Institute, University of Wollongong, Wollongong, NSW, Australia;Information & Communication Technology Research Institute, University of Wollongong, Wollongong, NSW, Australia;Information & Communication Technology Research Institute, University of Wollongong, Wollongong, NSW, Australia
Venue:
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Year:
2009

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Abstract

The Optimised Link State Routing (OLSR) is a proactive routing protocol which relies on periodical broadcast of routing packets. However, due to the one-to-many relationship of broadcast traffic, the delivery of these packets can not be guaranteed by underlying MAC protocol, particularly in a congested condition. In this paper, the possible routing pathologies and failures of OLSR in a congested network are explored. In addition, a hybrid routing protocol which integrates OLSR with Reactive Route Recovery (OLSR-R3) is proposed to rectify the erratic routing behaviour described in this paper. Simulation studies are presented which show that the proposed solution is effective in addressing the underlining problems.