Arbitration-based Reliable Distributed Mutual Exclusion for Mobile Ad-hoc Networks
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Abstract—Distributed mutual exclusion enables critical resources
to be shared amongst different mobile nodes in a Mobile
Ad-hoc environment. In this paper, we place all nodes in a
vicinity into regions. By suitably manipulating the behavior of
arbitrator nodes, that form the bridge between two neighboring
regions, we have ensured that permission is granted by every
participating node, irrespective of the size of the network. We
have used a single additional message, the HOLD message, to
ensure that the DME correctness is achieved for both inter-region
and intra-region communications. Fault tolerance arguments for
the proposed algorithm are also presented. To our knowledge,
this is the first distributed mutual exclusion algorithm that uses
the notion of regions and fault tolerance in MANETs.