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Theses

Transport multipoint fiable à très grande échelle : Intégration de critères de coût en environnement Internet hybride satellite / terrestre

Abstract : This thesis studies issues related to the proposition of large scale reliable multipoint communication services. In this context, the possibility to use a geostationary satellite, emitting in the Ka band, to deploy such a service is analysed. However, the use of the Ka band introduces a high variability of quality of reception. Thus, the use of a transport protocol, implementing specific mechanisms, is mandatory. According to a cost function, the comparison of classical solutions, based on IP Multicast, show that a hybrid approach which uses the terrestrial and the satellite networks is advantageous. Consequently, a protocol named Hybrid Satellite Terrestrial Reliable Multicast is proposed. Its principle consists of choosing, depending on the group size, the more profitable network (i.e. terrestrial or satellite network) to transmit information. This choice is made according to a predefined cost function. A sharp description of the proposition, including the hosts' behaviours and the message set-up, is depicted. In spite of the simplicity of the approach, several obstacles appear when one tries to design appropriate mechanisms. These issues include reliability (use of forward error correction), large group size estimation, and terrestrial error recovery (use of peer-to-peer networks). Those mechanisms are studied separately to determine satisfactory configurations, and to detect performance issues. After the definition of those mechanisms, the proposition is globally modelized in order to start the formal validation of the proposed service. The model is realized using the real-time UML profile TURTLE, and the validation results are obtained thanks to the TTool-RTL toolkit, and to Aldebaran.
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https://tel.archives-ouvertes.fr/tel-00008639
Contributor : Florestan de Belleville <>
Submitted on : Wednesday, March 2, 2005 - 9:52:01 PM
Last modification on : Friday, December 18, 2020 - 3:01:15 AM
Long-term archiving on: : Friday, April 2, 2010 - 9:22:07 PM

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  • HAL Id : tel-00008639, version 1

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Florestan de Belleville. Transport multipoint fiable à très grande échelle : Intégration de critères de coût en environnement Internet hybride satellite / terrestre. Réseaux et télécommunications [cs.NI]. Institut National Polytechnique de Toulouse - INPT, 2004. Français. ⟨tel-00008639⟩

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