3 results for “update propagation”

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Research ArticleOpen accessIn the keywordsAccess Weight Replica Consistency Protocol For Large Scale Data GridMohammed Radi, Ali Mamat, M. M. Deris et al.Replication is a well known technique to improve reliability and performance for a Data Grid. Keeping consistent content at all distributed replica is an important subject in Data Grid. Replica consistency protocol using classical propagation method called the radial method suffers from high overhead at the master replica site, while line method suffers from high delay time. In Data Grid … …Journal of Computer Science, Vol. 4, Issue 2 · 28 Feb 2008 · 7,297 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Multi-Agent Based Data Replication Mechanism for Mobile GridT. Senthilnathan, T. PurusothamanProblem statement: In Mobile grid, the mobile devices can be effectively incorporated in to the Grid. It enables both the mobility of the users requesting access to a fixed grid and the resources that are themselves as part of the grid. There are number challenging issues for mobile grid; such as connectivity, availability, maintainability, consistency and fault tolerance. This study … …American Journal of Applied Sciences, Vol. 9, Issue 4 · 13 Feb 2012 · 6,838 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPerformance Enhancement of Underwater Target Tracking by Fusing Data of Array of Global Positioning System SonobuoysAhmed El-Shafie, Abdallah Osman, Aboelmagd Noureldin, Aini HussainProblem statement: An accurate knowledge of geographic positions of sonobuoys is critical for the conduct of antisubmarine warfare operations and detected target localization. Deployed from an airborne platform or a surface vessel, arrays of sonobuoys could be used to efficiently track and localize submarines. Lastly, some sonobuoys were being equipped with GPS for improving system accuracy and potentially allowing networked … …Journal of Computer Science, Vol. 5, Issue 3 · 31 Mar 2009 · 7,469 accessesView PDF Cite