A transactional asynchronous replication scheme for mobile database systems

Authors:
Ding Zhiming;Meng Xiaofeng;Wang Shan
Affiliations:
Institute of Computing Technology, The Chinese Academy of Sciences, Beijing 100080, P.R. China;Institute of Data and Knowledge Engineering, Renmin University of China, Beijing 100872, P.R. China;Institute of Data and Knowledge Engineering, Renmin University of China, Beijing 100872, P.R. China
Venue:
Journal of Computer Science and Technology
Year:
2002

Citing 9
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Abstract

In mobile database systems, mobility of users has a significant impact on data replication. As a result, the various replica control protocols that exist today in traditional distributed and multidatabase environments are no longer suitable. To solve this problem, a new mobile database replication scheme, the Transaction-Level Result-Set Propagation (TLRSP) model, is put forward in this paper. The conflict detection and resolution strategy based on TLRSP is discussed in detail, and the implementation algorithm is proposed. In order to compare the performance of the TLRSP model with that of other mobile replication schemes, we have developed a detailed simulation model. Experimental results show that the TLRSP model provides an efficient support for replicated mobile database systems by reducing reprocessing overhead and maintaining database consistency.