Gesellschaft fr Informatik e.V.

Lecture Notes in Informatics


Information Systems Technology and ist Applications, ISTA' 2005 4th. International Conference, 23. - 25. May 2005, Palmerston North, New Zealand. GI 2005 P-63, 124-138 (2005).

GI, Gesellschaft für Informatik, Bonn
2005


Editors

Roland Kaschek, Heinrich C. Mayr, Stephen Liddle (eds.)


Copyright © GI, Gesellschaft für Informatik, Bonn

Contents

Surrogate object model: A new paradigm for distributedmobile systems

Mohamed M. A. Maluk , D. Janakiram and M. Chakraborty

Abstract


Distributed mobile systems are characterized by asymmetry in both network connectivity and computing power, mobility of hosts and their constraints. To address these issues, existing approaches attempt to completely redesign distributed applications or algorithms to make them work in a distributed mobile environment. This paper proposes an alternate mechanism namely, the surrogate object model to handle the asymmetry problem in distributed mobile systems. The surrogate object is a representative for a particular Mobile Host (MH) in the wired network that maintains application specific data structures and methods. The surrogate object model maintains a cache of data stored in the mobile host and reduces wireless data transfers. The proposed novel model also provides an ideal placeholder for MH location information, thus solving the location management problem to handle mobility of hosts. A comprehensive simulation study of the surrogate object model has been done. Performance studies of a sample application with and without the surrogate object model illustrates the efficiency of developing applications over the surrogate object model.


Full Text: PDF

GI, Gesellschaft für Informatik, Bonn
ISBN 3-88579-392-X


Last changed 24.01.2012 21:49:04