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Theses

Prédiction de couverture de champ radioélectrique pour les réseaux radiomobiles : L'apport des Systèmes d'Information Géographique. Application en milieu urbain.

Abstract : Radiomobile phone networks developments aims to study geographic constraints on wave propagation. In order to optimize the quality of the mobile telecommunications and of the antennas localization, a study of the geographic data used in GSM 900 MHz radio mobile engineering has been improved. That is particularly the case in urban areas, where any antenna placement meets a great number of constraints dues to numerous buildings and lots of debates, which play the rule of obstacle for radio waves.
Considerations on Spatial analysis and appropriate information integration have been used inside the Geographical Information System in order to measure the correlation between geographic data (quality, typology, scale, morphology, structure...) and the quality (radio prediction accuracy, computing time) of the model of radio wave propagation. Moreover, new variables like morphological indicators and line of sight surfaces have been incorporated to improve the geographic model. With those variables, coverage capability computations have been improved in propagation models. Our results have served to design an informatics' prototype: the model OpenMorph.
OpenMorph project is developed as a module of a Geographical Information System. It is splitted into two parts: a spatial analysis module allowing computing geographic data and a radio computation module which improve two waves' propagation models (Okumura-Hata and COST-LD). Our project has been tested on the Urban Community of Strasbourg.
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https://tel.archives-ouvertes.fr/tel-00012014
Contributor : Christine Turck <>
Submitted on : Monday, March 27, 2006 - 12:38:23 PM
Last modification on : Monday, October 19, 2020 - 11:12:00 AM
Long-term archiving on: : Monday, September 20, 2010 - 1:52:59 PM

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  • HAL Id : tel-00012014, version 2

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Christine Turck. Prédiction de couverture de champ radioélectrique pour les réseaux radiomobiles : L'apport des Systèmes d'Information Géographique. Application en milieu urbain.. Géographie. Université Louis Pasteur - Strasbourg I, 2005. Français. ⟨tel-00012014v2⟩

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