Cluster-based OLSR extensions to reduce control overhead in mobile ad hoc networks

Authors:
Francisco J. Ros;Pedro M. Ruiz
Affiliations:
University of Murcia, Murcia, Spain;University of Murcia, Murcia, Spain
Venue:
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Year:
2007

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Abstract

Proactive routing protocols for Mobile Ad Hoc Networks (MANETs) traditionally fail to scale up to large networks, since they generate a big amount of routing overhead. Based on OLSR, a proactive solution specifically designed for dense ad hoc networks, we develop a low overhead protocol called Clustered OLSR (C-OLSR). C-OLSR assumes that somehow the network is partitioned into clusters, and restricts the propagation of topology control messages inside every cluster. The generation and forwarding of inter-cluster topology information is based on the use of Multipoint Relays (MPRs) at the level of clusters. Through a simulation study, we show that C-OLSR outperforms OLSR both in terms of overhead generation and achievable throughput.