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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium

A Code for Correcting Quantum Erasures

Quantum states are very delicate, so quantum error-correction procedures are believed to be essential for the successful implementation of quantum communic...

SBrT 2010

A Comparative Analysis of Vocoders for Communications in Portuguese

This paper analyzes the performance of voice encoders used for digital communications, especially in VoIP calls, for Brazilian Portuguese phonemes. The foc...

SBrT 2010

A complex version of the LASSO algorithm and its application to beamforming

Least Absolute Shrinkage and Selection Operator (LASSO) is a useful method to achieve coefficient shrinkage and data selection simultaneously. The central ...

SBrT 2010

A Contribution for Spectrum Sensing in Power Line Communication Systems

In Brazil, the introduction of telecommunication and electric energy regulations for power line communications (PLC) is pushing forward R&D efforts towards...

SBrT 2010

Acoustic Water Leak Detection System

This article presents an acoustic water leak detection system. It shows all the stages for doing acoustic leak signal processing and classification. The te...

SBrT 2010