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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


Splitted Neural Networks for Equipment Inspection: Experiments and Resources

This paper presents a feasibility study of performing equipment inspection on networked environments by exploring networks specially designed for semantic se...

SBrT 2020


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


Squeezed Vacuum State Approximation of Discrete Unidimensional Coherent State Constellations

Recent research on QKD Protocols has focused on discrete modulation schemes for continuous-variable systems, which is a new paradigm in therms of security pr...

SBrT 2020