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An Active Replication Scheme for Mobile Data Management
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Shiow-yang Wu and
Yu-tse Chang
View Paper (PDF)
Return to Session 3A: Mobile Databases
A replication scheme determines the number and
location of replicas in a distributed system. Traditional static replication
schemes do not perform well in mobile environment since the assumptions of
fixed hosts and relatively static access patterns no longer hold. For effective
data management in mobile environment, we propose a dynamic replication scheme
which employs user profiles for recording user' mobility schedules, access
behavior and read/write patterns, and actively reconfigures the replicas to
adjust to the changes in user locations and system status. Simulation results
demonstrate that the scheme can accurately predict the data requirement to
facilitate effective replication, reduce response time, and increase data
availability.
Copyright(C) 2000 ACM
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