| |
| description |
Mobile ad hoc networks (MANETs) are used in situations where
networks need to be deployed immediately but no network
infrastructure is available. If MANET nodes have sensing
capabilities, they can capture and communicate the state of their
surroundings, including environmental conditions or objects in their
proximity. If the sensed state information is propagated to a
database to build a consistent model of the real world, a variety of
promising context-aware applications becomes possible. In this
paper, we introduce a novel consistency concept that preserves the
chronological ordering of sensed state transition events. Based on
this concept, we propose a data replication algorithm for MANETs
that guarantees the consistency concept without relying on
synchronized clocks and show its correctness. Our simulation
experiments show that replicated copies are updated regularly even
if the network load in the system is high.
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| publisher |
University of Stuttgart : Collaborative Research Center SFB 627
(Nexus: World Models for Mobile Context-Based
Systems)
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| IEEE Press
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| type |
Text
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| Article in Proceedings
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| source |
In: Proceedings of the First IEEE International Conference on Mobile
Ad Hoc and Sensor Systems, pp. 1-10
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| contributor |
Institut für Parallele und Verteilte Systeme, Verteilte
Systeme
|
| Jörg Hähner
| subject |
Database Management (CR H.2)
| | Computer-Communication Networks (CR C.2)
| |