MSN'05 Proceedings of the First international conference on Mobile Ad-hoc and Sensor Networks
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Replication is an important technique in peer-to-peerenvironment, where it increases data availability andaccessibility to users despite site or communicationfailure. However, determining the number ofreplication and where to replicate the data are themajor issues. This paper proposes a hybrid replicationmodel for fixed and ad hoc network in order to achievehigh data availability. For the fixed network, a datawill be replicated synchronously in a diagonal mannerof logical grid structure, while for the ad hoc network,a data will be replicated asynchronously based oncommonly visited sites for each user. In comparison tothe Grid structure technique, diagonal replicationtechnique (DRG) on fixed network requires lowercommunication cost for an operation, while providinghigher data availability, which is preferred for largesystems.