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Sociedade Brasileira de Telecomunicações

Spectrum Sharing Strategies for Machine Type Communication in Cognitive Networks

In this work we investigate spectrum sensing strategies for enabling machine-to-machine applications in broadband communication systems. Our studies are ca...

SBrT 2015

Speech Synthesis Based on Deep Neural Networks with Direct Modeling of Amplitude Spectra

In recent state-of-the-art text-to-speech systems, usually a sequence of graphemes is directly mapped onto the speech waveform using deep neural networks. ...

SBrT 2018

Square-spiral antenna with unbalanced-excitation

A new spiral square architecture antenna with unbalanced excitation was designed. Spiral antenna is formed by two arms, a ragged arousal in which one of th...

SBrT 2013

Status of a Brazilian Automatic Hydro-meteorological territorial network

This paper presents a report on the status of a Brazilian network of automatic hydro-meteorological stations. These stations were projected, acquired and ins...

SBrT 2016

Stochastic Analysis of the Orthogonal Frequency Division Multiplexing Scheme

The Orthogonal Frequency Division Multiplexing (OFDM) scheme has been chosen as the transmission scheme for most digital television, digital radio and wire...

SBrT 2012