Reducing Delay Time to Commit the Consistent Database By Using Fixed Timeout Technique (FTOT) for Mobile Database Over Grid

Abstract

Abstract The neediness of implementing the mobile computing models increasing rapidly these days since the wide range of the mobile users and mobile applications which it leads to develop new models and protocols that can help to carryout this neediness to use the mobile application. In this paper we introduce a new model(The Diagonal Allocation Grid and Fixed Timeout Technique( DAG n FTOT)), we address three issues related to the DAG n FTOT: Multi-Check-Out Timestamp Order Technique (MCTO) For Planned Disconnections In Mobile Database vs. Concurrency Control Mechanism (CCM) for Mobile Database Systems (MDS) , reducing the delay time to commit the consistent database comparing to the previous models ( MCTO, and CCM), and proposing a new model to be implemented over the ad-hoc network and the fixed network( we will use the grid topology for the fixed network) to make both of them work as peer to peer.