Desarrollo de métodos de análisis y optimización para redes de frecuencia única

Abstract

In order to facilitate the design stage, in this PhD. Thesis a novel methodology, implemented in a software tool that allows the analysis and improvement of the behavior of a SFN focusing the study on aspects such as the coverage and interference, working on the number and power of the transmitters within the network, the application of static delays, the choice of suitable models for the receivers or the radiant systems themselves. The reliability and accuracy of the results provided by the tool depends on the proper settings for the parameters chosen for each one of the autonomous functional blocks that it consists of: propagation prediction, receptor modeling and network optimization. Considering several SFN as reference canonical structures, an extensive dossier of results is included to compare the performance of various empirical and semi-empirical propagation prediction methods developed, and different metaheuristics algorithms such as GA, PSO, SA or MOSA used as a basis for the optimization of such networks. The analysis and optimization has not only been focused on the tool developed to maximize coverage on specific geographic regions, but also to minimize interference on other networks. This allows to obtain relevant information to help a network designer to decide about the most suitable configuration based on the terrain considered and the technical characteristics of the devices deployed in real systems with a reasonable computational cost.