AMDB - An Approach for Sharing Mobile Databases

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

Mobile Database Community (MDBC) is a dynamic collection of autonomous mobile databases, in which each database user can access each other s database in the community through a wireless communication infrastructure. Such communities can be formed opportunistically over mobile database hosts in ad hoc configurable envi-ronments. New participants may join to an MDBC as they move within communica-tion range of one or more hosts, which are members of the MDBC. On other hand, MDBC participants may transiently disconnect from the network due to communica-tion disruptions or to save power. For that reason, an MDBC can be characterized as a dynamically configurable environment. This dissertation describes an agent-based architecture, called AMDB (Accessing Mobile Databases), which enables such com-munities to be formed opportunistically over mobile database hosts in ad hoc config-urable environments. The AMDB architecture is fully distributed and exploits physical mobility of hosts and logical mobility of database operations and their results across mobile hosts. The architecture addresses two important issues in mobile database area as well. First, the query processing problem is discussed. A query processing mechanism is proposed for AMDB. Second, the transaction processing problem is tackled. A mobile transaction model and a commit protocol are proposed. Keywords: Databases - Mobile Databases - Mobile Agents - Query Processing - Transaction Processing - Mobile Database Community.

ASSUNTO(S)

banco de dados - dissertaÇÕes sistemas de informacao

ACESSO AO ARTIGO

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