AMDB – An Approach for Sharing Mobile Databases

  • José de Aguiar Moraes Filho UNIFOR
  • Angelo Brayner UNIFOR

Resumo


We define a Mobile Database Community (MDBC) as a dynamic collection of autonomous mobile databases in which each database user can access databases in the community through a wireless communication infrastructure. New participants may join to an MDBC as they move within communication range of one or more hosts which are members of the MDBC. MDBC participants may also transiently disconnect from the network due to communication disruptions or to save power. This paper describes an agent-based architecture, called AMDB (Accessing Mobile Databases), which enables such communities to be formed opportunistically over mobile database hosts in ad hoc configurable environments. The AMDB architecture is fully distributed and exploits physical mobility of hosts and logical mobility of database queries and their results across mobile hosts.

Referências

Brayner, A. and M. Filho, José A. "Sharing Mobile Databases in Dynamically Configuration Environments". Advanced Information Systems Engineering. LNCS 2681. 2003. pages 724-737.

Brayner, A. and M. Filho, José A. "Increasing Mobile Transaction Concurrency in Mobile Database Communities". Proceedings of the V Wireless Communication Workshop (WCSF03). 2003.

Brayner, A. and M. Filho, José A. "AMDB: An Approach for Sharing Mobile Databases in Dynamically Configuration Environments". Proceedings of the XVII Brazilian Symposium on Databases (SBBD). 2002.

Brayner, A. and Härder T. “Global Semantic Serializability: An Approach to Increase Concurrency in Multidatabase Systems”. Cooperative Information Systems. LNCS 2172. 2001. pages 301-315.

Haas, Peter J. and Hellerstein, Joseph M. “Ripple Joins for Online Aggregation”. Proceedings of the 1999 ACM SIGMOD International Conference on Management of Data. 1999. pages 287-298.

Lange, D. B. and Oshima M. “Programming and Deploying Java Mobile Agents with Aglets”. Addison-Wesley. Massachusetts, USA. 1998. ISBN 0201325829.

Macker, J. P. and Corson, M. S. “Mobile Ad Hoc Networks and the IETF”, Internet Engineering Task Force, Mobile Ad Hoc Network (MANET) Working Group. Available online at [link].

Moraes Filho, José Aguiar. “AMDB – An approach for Sharing Mobile Databases”. Master Dissertation. Universidade Fortaleza (UNIFOR). 2003.

Soares, M. and Brayner, A. “MXQUERY: An XQuery-like Multidatabase Language”. Submitted for publication. 2004.

Urhan, T. and Franklin, Michael J. “XJoin: A Reactively-Scheduled Pipelined Join Operator”. IEEE Data Engineering Bulletin. Vol. 23 No. 2. June, 2000. pages 27-33.

XML. Available Online at [link].

XQuery 1.0 Formal Semantics. Available online at [link].
Publicado
31/07/2004
MORAES FILHO, José de Aguiar; BRAYNER, Angelo. AMDB – An Approach for Sharing Mobile Databases. In: CONCURSO DE TESES E DISSERTAÇÕES (CTD), 17. , 2004, Salvador/BA. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2004 . p. 49-53. ISSN 2763-8820.