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Estudo e projeto de uma rede sem fios para a Universidade da Madeira
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Abstract(s)
A importância da internet nos nossos dias cada vez menos é uma questão de debate, pois a resposta óbvia é de que o ser humano já não sabe viver sem esse fenómeno tecnológico. O acesso à internet é hoje uma questão central e complexa que envolve diversos fatores, tais como tecnológicos, económicos e sociais. O Wi-Fi (Wireless Fidelity) surge como rosto principal das redes sem fios, com o intuito de garantir o acesso à internet em qualquer lugar, de tal forma que o sucesso desta tecnologia foi um dos principais impulsionadores para o desenvolvimento dos dispositivos móveis e de toda a indústria tecnológica. Devido às alterações do paradigma de utilização da internet causado por uma maior diversidade e quantidade de dispositivos móveis e pelo aumento do número de acessos, houve a necessidade da própria tecnologia Wi-Fi se atualizar com o propósito de melhorar a sua qualidade de serviço. Com este projeto de mestrado, pretende-se explorar os aspetos tecnológicos que é necessário considerar para pôr em prática esta mudança de paradigma. Aplicando esta nova realidade ao estudo/identificação dos problemas da rede wireless existente na Universidade da Madeira (UMa), assim como à realização de um projeto de planeamento para uma nova rede Wi-Fi que venha a ultrapassar os problemas existentes e que vá de encontro às necessidades atuais e futuras dos utilizadores. A abordagem inicial do trabalho consistiu no estudo da fundamentação teórica acerca das redes sem fios, em que são abordados modelos e mecanismos utilizados neste tipo de redes e a evolução da norma IEEE 802.11 (Wi-Fi). A continuação do trabalho consistiu na caracterização do problema, nas redes Wi-Fi da UMa, em que se inclui a rede do edifício da Penteada, da Reitoria e da Residência Universitária tendo sido abordado os seus principais problemas. De seguida, procedeu-se com a proposta de uma arquitetura de uma solução para a rede, cruzando fatores identificados no survey, com fatores indispensáveis numa rede atual, com o intuito de tornar o planeamento de uma nova rede o mais eficiente e robusta possível. Devido a restrições económicas, são também sugeridos vários cenários possíveis de soluções a curto-médio prazo para a rede da Penteada. Este trabalho oferece à UMa soluções viáveis para a restruturação das suas redes Wi-Fi, com base na tecnologia atual, preparando-a da melhor forma garantindo assim uma rede de futuro para toda a comunidade académica.
The importance of the internet in our days is no longer a matter of debate, because the obvious answer is that the human being no longer knows how to live without this technological phenomenon. The internet access today is a central and complex issue that involves many factors, such as technological, economic and social. The Wi-Fi technology emerges as the main face of wireless networks in order to ensure the internet access, so the success of this technology was a major driver for the development of mobile devices and the entire technological industry. Due to changes in the paradigm of Internet usage caused by great diversity and quantity of mobile devices and the increase in the number of accesses, there was a need for Wi-Fi technology to update itself with the purpose of improving its quality of service. With this project, we intend to explore the technological aspects that needs to be considered in order to implement this paradigm change. We want to apply this new reality to the study/identification of wireless network problems at the University of Madeira (UMa) as well as create a planning project for a new Wi-Fi network that will overcome existing problems and to make sure if that meets the current user’s needs. The initial work approach consisted in the study of theoretical basis for wireless networks, in which models and mechanisms are used in this type of networks and the evolution of the IEEE 802.11 (Wi-Fi) standard. The continuation of the work consisted in the characterization of the problem, in UMa Wi-Fi networks, which includes the network of the Penteada building, the Rectory and the University Residence addressing their main problems. Then we proposed a solution architecture for the network, crossing factors identified in the survey with indispensable factors in current networks, in order to make the planning of a new network as efficient and robust as possible. Due to economic problems, it is also suggested a solution in the short to medium term for the Penteada network. This work offers the University of Madeira viable solutions for the restructuring of Wi-Fi networks, preparing it in the best way, based on current technology, thus guaranteeing a future network for the academic community.
The importance of the internet in our days is no longer a matter of debate, because the obvious answer is that the human being no longer knows how to live without this technological phenomenon. The internet access today is a central and complex issue that involves many factors, such as technological, economic and social. The Wi-Fi technology emerges as the main face of wireless networks in order to ensure the internet access, so the success of this technology was a major driver for the development of mobile devices and the entire technological industry. Due to changes in the paradigm of Internet usage caused by great diversity and quantity of mobile devices and the increase in the number of accesses, there was a need for Wi-Fi technology to update itself with the purpose of improving its quality of service. With this project, we intend to explore the technological aspects that needs to be considered in order to implement this paradigm change. We want to apply this new reality to the study/identification of wireless network problems at the University of Madeira (UMa) as well as create a planning project for a new Wi-Fi network that will overcome existing problems and to make sure if that meets the current user’s needs. The initial work approach consisted in the study of theoretical basis for wireless networks, in which models and mechanisms are used in this type of networks and the evolution of the IEEE 802.11 (Wi-Fi) standard. The continuation of the work consisted in the characterization of the problem, in UMa Wi-Fi networks, which includes the network of the Penteada building, the Rectory and the University Residence addressing their main problems. Then we proposed a solution architecture for the network, crossing factors identified in the survey with indispensable factors in current networks, in order to make the planning of a new network as efficient and robust as possible. Due to economic problems, it is also suggested a solution in the short to medium term for the Penteada network. This work offers the University of Madeira viable solutions for the restructuring of Wi-Fi networks, preparing it in the best way, based on current technology, thus guaranteeing a future network for the academic community.
Description
Keywords
Rede Wi-fi Acess point Survey Planeamento Universidade da Madeira Ekahau Wi-fi networks Access point Survey Planning University of Madeira Engenharia Eletrotécnica - Telecomunicações . Faculdade de Ciências Exatas e da Engenharia