Research On Key Technologies Of Embeded Mobile Database

In recent years, with the rapid development of computing technology,mobile communication technology and global-positioning technology and put into use, and mobile computers have been brought into wide use, making a new computing model—mobile computing model which has been rapidly developed. In this mode, a variety of high-performance embedded mobile devices manage a lot of data, and realize data sharing and exchange through wireless communication interface.With the continuous development of the technology of embedded mobile database, the new computing model made people can access to any data at anytime,anywhere becoming a reality.This paper summarizes and analyses some of the key technologies involved the field of embedded mobile database, on this basis, this paper mainly researches the mobile information access technologies of the embedded mobile database are facing two key problems:(1) The replication and synchronization technology of embedded mobile database, for this technology, this paper deeply analyses and discusses of several basic replication technology of embedded mobile database, on this basis, we present a Union Transaction-Level Result-Set Propagation(UTLRSP) mobile replication model. (2) The mobile transaction processing technology of embedded mobile database, for this technology, this paper mainly researches some typical mobile transaction processing model, on this basis, we present a Improved Optimistic Two-Phase Commit for Mobile Transactions(IO2PC-MT) mobile transaction processing model. And by simulation experiments, comparing and analyzing to the performance of the IO2PC-MT model and O2PC-MT model. The simulation experiment shows that this paper presented the mobile transaction processing model improves resource utilization and the whole performance of system, this model provides a good solution for the mobile transaction processing technology of embedded mobile database.