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Checkpointing and Recovery Using Node Mobility among Clusters in Mobile Ad Hoc Network

Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 176)

Abstract

In this paper we propose a new mobility aware checkpointing and failure recovery algorithm for cluster based mobile ad hoc network (MANET). Here we introduce a parameter ‘cluster-change-count’, maintained by each member node to count number of clusters a mobile node traverses through during a single checkpoint interval. A mobile node increments ‘cluster-change-count’ by 1 each time the mobile node leaves a cluster and joins another. Each mobile node saves a checkpoint independently if its ‘cluster-change-count’ exceeds a predefined threshold. This measure is important because each mobile node saves logs, important data required for its recovery at different cluster heads it traversed through. If the node fails, these data are to be searched and retrieved for recovery along with last saved checkpoint. This search and retrieval cost of dispersed data of a failed node increases with increasing ‘cluster-change-count’ and gets added to total recovery cost of a failed mobile node. To limit this cost, a threshold value of ‘cluster-change-count’ is set. In MANET no node has stable storage. This makes checkpointing in MANET more challenging. Checkpoint placement needs to be done efficiently to ensure minimum recovery cost and improved recovery probability. We have analyzed performance of the proposed algorithm.

Keywords

checkpoint clustering mobile adhoc network recovery 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of Computer Science & EngineeringWest Bengal University of TechnologyKolkataIndia
  2. 2.Jadavpur UniversityKolkataIndia

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