The topology of a mobile ad hoc network (MANET) may change randomly and rapidly at unpredictable time, since nodes are free to move arbitrarily. In such an environment, we may have a collection of autonomous, distributed, heterogeneous and mobile databases, denoted Mobile Database Community or MDBC. MDBC participants may join to the community as they move within communication range of one or more hosts members of the MDBC. Participants may transiently disconnect from the network due to communication disruptions or to save power. Thus, an MDBC can be characterized as an ad hoc (dynamically) configurable environment. This chapter describes an agent-based middleware, denoted AMDB (Accessing Mobile Databases), which enables such communities to be formed opportunistically and in a plug-and-play manner over mobile database in ad hoc configurable environments. AMDB has a fully distributed architecture and has the capability of exploiting physical mobility of hosts and logical mobility of database queries (transactions) across mobile hosts. Furthermore, this chapter describes a query engine for the proposed architecture and a mobile transaction processing model as well.
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- Ensuring Mobile Databases Interoperability in Ad Hoc Configurable Environments: A Plug-and-Play Approach
José de Aguiar Moraes Filho
- Springer Berlin Heidelberg
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