A new approach for efficiently achieving high availability in mobile computing

Authors:
M. Mat Deris;J. H. Abawajy;M. Omar
Affiliations:
Faculty of Information technology and Multimedia, University College of Tun Hussein Onn, Parit Raja, Batu Pahat, Johor;School of Information Technology, Deakin University, Geelong, VIC, Australia;Institute of Science Mathematics, University of Malaya, Kuala Lumpur
Venue:
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part III
Year:
2005

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Abstract

Recent advances in hardware technologies such as portable computers and wireless communication networks have led to the emergence of mobile computing systems. Thus, availability and accessibility of the data and services become important issues of mobile computing systems. In this paper, we present a data replication and management scheme tailored for such environments. In the proposed scheme data is replicated synchronously over stationary sites while for the mobile network, data is replicated asynchronously based on commonly visited sites for each user. The proposed scheme is compared with other techniques and is shown to require less communication cost for an operation as well as provide higher degree of data availability.