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Mise au point d'algorithmes répartis dans un environnement fortement variable, et expérimentation dans le contexte des pico-réseaux

Abstract : Technological advances in wireless devices (laptop computers, personal digital assistants (PDAs), mobile phones, ...) bring up significance to new wireless technologies. Progress in wireless communication protocols (Bluetooth, WIFI, ...) allow the use of new ad-hoc networking schemes. Then, new challenges arise from the communication variability in wireless networks and the unpredictable disconnections of those heterogeneous devices, creating very dynamic topologies named ad-hoc wireless networks. In this context, to maintain the consistency of a wireless device group, we built a middleware addressing the distributed agreement problem in unreliable environment. Therefore, to characterize wireless environments performances, we first express a method, which tries to identify the factors acting upon system variability. Based on unreliable failure detectors, the consensus algorithm proposed is able to make a decision for distributed systems despite of unreliable communications or process failures (disconnections or crashes). An evaluation on either the behavior analysis and the quality of services has been performed to validate the method above.
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https://tel.archives-ouvertes.fr/tel-00008039
Contributor : Corine Marchand <>
Submitted on : Thursday, January 13, 2005 - 12:57:40 PM
Last modification on : Friday, November 6, 2020 - 4:39:03 AM
Long-term archiving on: : Monday, September 20, 2010 - 12:16:12 PM

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  • HAL Id : tel-00008039, version 2

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Corine Marchand. Mise au point d'algorithmes répartis dans un environnement fortement variable, et expérimentation dans le contexte des pico-réseaux. Réseaux et télécommunications [cs.NI]. Institut National Polytechnique de Grenoble - INPG, 2004. Français. ⟨tel-00008039v2⟩

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