Navegando por Assunto "Power minimization"
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Item Acesso aberto (Open Access) Otimização de sistemas DSL utilizando técnicas de gerenciamento de espectro(Universidade Federal do Pará, 2010-05-10) MONTEIRO, Márcio Murilo Conte; KLAUTAU JÚNIOR, Aldebaro Barreto da Rocha; http://lattes.cnpq.br/1596629769697284This dissertation presents contributions to some strategies of spectrum management which have received few attention in the literature: power minimization and noise margin maximization. Regarding power minimization, about 60% of the total power drained by the DSL transceivers are used in the transmission. The contribution of this dissertation with respect to this field was to prove mathematically that the algorithms of rate maximization can also be used to minimize power. This way, the development gap between these two modes of operation vanishes, turning them in the same level of development. The second contribution of this dissertation is about the noise margin maximization, in order to optimize the stability of DSL networks. In this direction, this dissertation presents a new algorithm of multiuser margin maximization, which shows superior performance when compared to a previous algorithm published in the specialized literature.