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Sociedade Brasileira de Telecomunicações

2012 - XXX Simpósio Brasileiro de Telecomunicações



Pathological Voice Classification Based on Recurrence Quantification Measures

This paper presents an analysis of speech signals based on quantification measures of recurrence plots. A com- parison between healthy voices and voices af...

SBrT 2012


Parâmetros balizadores para experimentos com comutadores OpenFlow: avaliação experimental baseada em medições de alta precisão.

The latency measurement, in a microsecond scale, and the frame loss ratio imposed by the current open-source implementations of OpenFlow switches are the o...

SBrT 2012


Parameter Optimization in ACO-MuD DS/CDMA

A simple and efficient methodology for tuning the input parameters applied to the ant colony optimization multiuser detection (ACO-MUD) in direct sequence co...

SBrT 2012


PARAFAC Receiver for Uplink Cooperative Relay-Assisted DS-CDMA Systems

In this paper, we consider the uplink of a multiuser cooperative DS-CDMA communication system, where each user communicates with the base station with the ...

SBrT 2012


Outage Analysis of Cooperative OFDM Systems with Nonlinear Amplifiers and Relay Selection

Cooperative communications have emerged as a promising solution for wireless networks. In particular, currently there is a growing interest in amplify-and-...

SBrT 2012