A Non-blocking Checkpointing Algorithm for Non-Deterministic Mobile Ad hoc Networks
||International Journal of Computer & Organization Trends (IJCOT)||
|© 2011 by IJCOT Journal|
|Year of Publication : 2011|
|Authors : Kusum Saluja , Praveen Kumar|
Kusum Saluja , Praveen Kumar "A Non-blocking Checkpointing Algorithm for Non-Deterministic Mobile Ad hoc Networks", International Journal of Computer & organization Trends (IJCOT), V1(2):15-22 Sep - Oct 2011, ISSN 2249-2593, www.ijcotjournal.org. Published by Seventh Sense Research Group.
Mobile Ad-hoc Networks are a collection of two or more devices equipped with wireless communication and networking capability. These devices can communication with other nodes that immediately within their radio range or one that is outside their radio range. The transient failure probability of the computing process increases greatly with the enlarging of system scale. If a failure occurs in a process and there is not an appropriate method to protect it, more cost will be wasted for restarting the program. Coordinated checkpointing can be used to introduce fault tolerance in mobile ad-hoc wireless networks environment. In this paper we propose a new minimum process checkpointing scheme for ad-hoc networks. We assume that Cluster Based Routing Protocol (CBRP) is used which belongs to the class of Hierarchical Reactive Routing Protocols. The number of coordinated messages between a cluster head and its ordinary members is small. The recovery scheme has no domino effect and the failure process can rollback from its latest local consistent Checkpoint. We capture the transitive dependencies among processes by piggybacking dependency vector of the sending process along with the computation messages.
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Mobile Ad Hoc Network; Checkpointing; Fault tolerance; Coordinating Checkpointing.