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Mobile technology and advances in databases have allowed users to access and manipulate data across multiple heterogeneous and autonomous data sources via wireless connection, namely mobile multidatabase system. Transaction management in this environment is non-trivial due to heterogeneity and autonomy of the participating data sources, frequent disconnections, and technological constraints of the access devices. Agent-based transaction management scheme for mobile multidatabase (AT3M) systems uses autonomous agents to enable a fully distributed transaction management, accommodates users' mobility, allows parallel execution of the global subtransactions, and responds to some of the limitations of the technology. The framework is augmented to support user connectivity and mobility in internetworking environment and to provide QoS-based services. The performance of the proposed AT3M is simulated and evaluated. The simulation study shows that the proposed scheme outperforms the V-locking and the pre-serialization schemes, as advanced in the literature.
Communications and Mobile Computing, 2009. CMC '09. WRI International Conference on (Volume:3 )
Date of Conference: 6-8 Jan. 2009