2010 - VII International Telecommunications Symposium
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...
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 ...
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...