A Mobility Based Metric for Clustering in Mobile Ad Hoc Networks
ICDCSW '01 Proceedings of the 21st International Conference on Distributed Computing Systems
ICDCN'08 Proceedings of the 9th international conference on Distributed computing and networking
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It is not a trivial job to maintain clusters in a highly mobile ad hoc scenario where changes in node activity status cause frequent and unpredictable topological changes. It requires continuous and efficient management protocol for frequent up-dation and re-clustering which are costly in a resource-poor environment. In this context, we describe a convenient cluster management protocol that incurs very little communication overhead for maintaining a stable cluster structure. Our protocol defines a geographical boundary for each cluster using GPS information that enables the mobile nodes to get alarmed while crossing the cluster boundary. Here a cluster-head is also free to leave the cluster after delegating the leadership to a member-node, which will then act as a surrogate cluster-head of the cluster. The simulation results indicate that this mechanism reduces as much as 30% of the overhead traffics involved in cluster maintenance.