Análise da eficiência dos métodos de rádio-localização implementados em sistemas celulares

Detalhes bibliográficos
Ano de defesa: 2009
Autor(a) principal: Araújo, Domênico Sávio Gomes de
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Programa de Pós-graduação em Engenharia de Telecomunicações
Engenharia de Telecomunicações
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
GPS
Link de acesso: https://app.uff.br/riuff/handle/1/18606
Resumo: In the recent years, great attention has been paid to the location of the personal mobile stations in cell phone communication systems. The GPS (Global Positioning System) system presents adequate precision presenting information on the location, however there are some aspects of the system that restrict the use, such as the unavailability of the systems in inside environment in metropolitan areas. The developments and the popularity of cell phones has motivated the development of localization methods that, together with the existing radio-localization techniques, as well as with the GPS system itself, are capable of promoting a good result in the localization in outdoor and indoor environment. The localization methods used in cell phone networks are complementary and work in the system in a way so as to provide the localization taking into consideration external factors, such as the density of buildings and base stations, the presence of obstacles and the environment where the localization is requested, that can be inside a building (indoor environment), or outdoors, considered as an external environment. The goal of this work is to analyze the factors that influence the order in which they are chosen and the frequency of use of the localization methods, as well the results of the study of the factors that influence its effectiveness in indoor and outdoor environments of high and low building and base station densities