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...
- Washington C. de A. Costa
- F. M. de Assis
- B. G. Aguiar Neto
- Silvana C. Costa
- Vinı́cius J. D. Vieira
- Speech signal analysis
- laryngeal pathologies
- re- currence quantification measures
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...
- Rafael Emerick Z. de Oliveira
- Magnos Martinello
- Pedro P. Piccoli Filho
- Moisés R. N. Ribeiro
- OpenFlow
- Oflops
- NetFPGA
- Open vSwitch .
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...
- José Carlos Marinello Filho
- Reginaldo Nunes de Souza
- and Taufik Abrão
- Ant colony intelligence
- multiuser detection
- input parameters optimization
- computational complexity
- DS-CDMA
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 ...
- André L. F. de Almeida
- C. Alexandre R. Fernandes
- Daniel Benevides da Costa
- Cooperative diversity
- multiuser communications
- DS-CDMA
- PARAFAC
- blind receiver
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-...
- C. Alexandre R. Fernandes
- Daniel Benevides da Costa
- Andre L. F. de Almeida
- Amplify-and-forward
- relay selection
- OFDM
- nonlinear power amplifier
- outage probability.
SBrT 2012