Allan B. Costa

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Representing the signal power at a studied environment through a mathematical model is one major challenge of signal propagation study. In this work is proposed an empirical Autoregressive Moving-Average (ARMA) model for signal strength prediction in indoor environments. A Genetic Algorithm (GA) was employed to calibrate the model (finding coefficients),(More)
This work analyses the feasibility of use Femtocells networks to provide return channel on Digital TV. The results were compared with a similar simulation using Wimax networks. The same numbers of users was used to create two scenarios, the first using only WiMAX networks, and the second using femtocell network. The results show that femtocell networking is(More)
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