Power-Efficient Data Exchanging Algorithm in Wireless Mesh Networks
WASA '08 Proceedings of the Third International Conference on Wireless Algorithms, Systems, and Applications
ISPA'04 Proceedings of the Second international conference on Parallel and Distributed Processing and Applications
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In mobile ad hoc networks (MANET), nodes move freelyand the distribution of access requests changesdynamically. Replica allocation in such a dynamicenvironment is a significant challenge. In this paper, adynamic adaptive replica allocation algorithm that canadapt to the nodes motion is proposed to minimize thecommunication cost of object access. When changes occurin the access requests of the object or the network topology,each replica node collects access requests from itsneighbors and makes decisions locally to expand replica toneighbors or to relinquish the replica. The algorithmdynamically adapts the replica allocation scheme to alocal optimal one. Simulation results show that ouralgorithms efficiently reduce the communication cost ofobject access in MANET environment.