Title :
A Tiered Replication Model in Embedded Database Based Mobile Geospatial Information Service
Author :
Zhang Yun ; Zhang Mu ; Bian Fuling
Author_Institution :
Int. Sch. of Software, Wuhan Univ., Wuhan
Abstract :
In the EDBMGIS (Embedded Database Based Mobile Geospatial Information Service) architecture application, the data of embedded database in the mobile terminal is duplicated from the server. After a period´s system operation, data in both the mobile client and server will be changed. In order to keep the data consistency, the synchronization of data on both side is discussed in this paper. In addition, a tiered replication model which is put forward to solve the synchronization problem under 3-tier replication architecture (Mobile client- Synchronization Server - Database Server).This model utilizes a novel double timestamp strategy to promote the efficiency of synchronization. Besides, it ensures serializability and consistency of the mobile database system through transaction-level conflict reconciliation.
Keywords :
embedded systems; geographic information systems; mobile computing; replicated databases; 3-tier replication architecture; data consistency; data synchronization; database server; embedded database; mobile client; mobile database system; mobile geospatial information service; mobile terminal; synchronization server; tiered replication model; Application software; Computer architecture; Data engineering; Database systems; Mobile computing; Space technology; Spatial databases; Telecommunication computing; Transaction databases; Wireless communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.1347
