Gestor de conectividade com informação de estações fixas para melhorar as comunicações entre veículos

• Autor(a) principal: Mendes, João Pedro Ferreira Silva
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/15361
• topic: Engenharia electrónica; Redes de comunicações sem fios; Comunicações móveis - Veículos; Gestão de redes

Wireless communications have been subject of an intensive research in recent times. Communicating has always been a necessity of people, and nowadays it is transversal to people needs. In recent years, wireless communications have been developed better in highly mobile spaces. For this type of spaces, vehicular networks have been developed, that are characterized by a large mobility, dynamic topology and frequent loss of connectivity, which makes the way to manage these networks rather complex. In a crowded space of wireless networks, especially in suburban areas, it becomes crucial to make a good choice when performing the connection. Thus, to ensure the best connection experience, it is necessary the support of a mechanism that is able to make that choice in an informed way. The best way to make the selection between the di↵erent available networks is introducing the selection mechanism with the ability to predict the quality of each possible connection, using the stored information of connections previously occurred. This way, it is proposed the development of a selection mechanism to select the best possible network that is based, not only on information available at each moment, but also on the information gathered through the historical links. The mechanism proposed is based on a process that combines parameters of the various wireless networks available to determine the best connection possible for users. To observe the potential of this new mechanism, tests were performed on the road using the same conditions as the mechanism without any prediction and the developed mechanism. The results show the improvements with the implementation of this mechanism with prediction.