Mobility

Mobility Based Checkpointing and Trust Based Recovery in MANET

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Executive Summary

This paper is a mobility based check-pointing and trust based rollback recovery algorithm to provide fault-tolerance in Mobile Ad hoc NETwork (MANET). Here, each mobile host maintains a count of number of clusters a mobile host traverses through, during a single checkpoint interval. A mobile host increments 'Cluster-change-count' by 1, each time it leaves a cluster and joins another. Each mobile host saves a check-point independently if its 'Cluster-change-count' exceeds a predefined threshold. This measure is important because each mobile host leaves its last checkpoint and logs at different clusters that it has visited earlier.

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