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Résultats exploitables
The most qualifying objective of STORMS (Software Tools for the Optimization of Resources in Mobile Systems) consists in the definition, implementation and validation of a software tool assisting Mobile Operators in the planning of the universal mobile telecommunication system (UMTS) network. STORMS is designed and implemented as an open software platform capable of hosting external modules and proprietary procedures tailored to the specific needs of the potential users.
Some preliminary software prototypes are ready to be demonstrated. In particular, the traffic and mobility module that handles information related to the demographic and geographic characteristics thus providing the data necessary for the traffic density estimates. On the radio coverage engineering, an appropriate Topographical and Geographical Information System (TGIS) has been developed. The TGIS encapsulates the propagation modules allowing access to the geographical data and providing the interface with other parts of the STORMS software suite. The current version is suitable for use with two dimensional ray-tracing (micro-cell) and quasi two dimensional macro-cell (irregular terrain) propagation. Following the evaluation of the coverage pattern associated to each single cell, the radio coverage optimization module has been developed as well. It allows to optimize the number of radio base stations necessary to ensure a given coverage percentage with a certain confidence degree. The optimization model is grounded on the graph theory while the software code implementation is based on a heuristic (genetic) approach. The radio resource dimensioning has been duly modelled and typical UMTS features will be taken into account. The software module, dedicated to the resources optimization on the fixed infrastructure, considers the wide variety of UMTS network architectures tailored to the environment constraints. Finally, the evaluation software module has been released as a preliminary prototype that allows to check the proposed network arrangement performances.
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