Search Results - "Silveira, Luiz F.Q."

Cyclostationary correntropy: Definition and applications by Fontes, Aluisio I.R., Rego, Joilson B.A., Martins, Allan de M., Silveira, Luiz F.Q., Principe, J.C.

“…•We propose a new mathematical tool for the higher-order cyclostationary analysis.•We define the Cyclic Correntropy Function (CCF) of random process.•We…”
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Adaptive Clustering of Users in Power Domain NOMA by Santos, Yuri P, Silveira, Luiz F Q

“…By enabling multiple non-orthogonal transmissions, power domain non-orthogonal multiple access (PD-NOMA) potentially increases a system's spectral efficiency…”
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Spectrum sensing with a parallel algorithm for cyclostationary feature extraction by Lima, Arthur D.L., Silveira, Luiz F.Q., Xavier-de-Souza, Samuel

“…The current static management policy for spectrum allocation has shown to be inefficient when dealing with the increasing demand for wireless communication…”
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Performance evaluation of the correntropy coefficient in automatic modulation classification by Fontes, Aluisio I.R., de M. Martins, Allan, Silveira, Luiz F.Q., Principe, J.C.

“…•We propose the direct use of the correntropy for modulation format recognition.•We investigate the influence of kernel size on the performance of the…”
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Corrigendum to “Cyclostationary Correntropy: Definition and applications” [Expert Systems with Applications 69 (2017) 110–117] by Fontes, Aluisio I.R., Rego, Joilson B.A., Martins, Allan de M., Silveira, Luiz F.Q., Principe, J.C.

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Automatic Modulation Classification Architectures Based on Cyclostationary Features in Impulsive Environments by Camara, Tales V. R. O., Lima, Arthur D. L., Lima, Bruno M. M., Fontes, Aluisio I. R., Martins, Allan De M., Silveira, Luiz F. Q.

“…Cyclostationary analysis has several applications in communications, e.g., spectral sensing, signal parameter estimation, and modulation classification. Most…”
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An adaptive kernel width convex combination method for maximum correntropy criterion by Fontes, Aluisio I. R., Linhares, Leandro L. S., F. Guimarães, João P., Silveira, Luiz F. Q., Martins, Allan M.

“…Recently, the maximum correntropy criterion (MCC) has been successfully applied in numerous applications regarding nonGaussian data processing. MCC employs a…”
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Performance analysis of wavelet channel coding in COST207-based channel models on simulated radio-over-fiber systems at the W-band by Cavalcante, Lucas, Silveira, Luiz F. Q., Rommel, Simon, Vegas Olmos, J. J., Tafur Monroy, I.

“…Millimeter wave communications based on photonic technologies have gained increased attention to provide optic fiber-like capacity in wireless environments…”
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Wavelet-Coded OFDM for Next Generation Mobile Communications by Cavalcante, Lucas, Vegas Olmos, J. J., Monroy, Idelfonso T., Dinis, Rui, de Q Silveira, Luiz G., de Q Silveira, Luiz F.

“…In this work, we evaluate the performance of Wavelet-Coding into offering robustness for OFDM signals against the combined effects of varying fading and noise…”
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Analysis and optimization of wavelet-coded communication systems by Silveira, L.F.Q., Silveira, L.G.Q., Assis, F.M., Pinto, E.L.

“…Since its advent, wavelet coding has been recognized as a promising technique for wireless transmission systems, especially due to its low decoding complexity…”
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Automatic Modulation Classification Using Information Theoretic Similarity Measures by Fontes, A. I. R., Pasa, L. A., de Sousa, V. A., Costa, J. A. F., Silveira, L. F. Q., Abinader, F. M.

“…Modern wireless systems employ adaptive techniques to provide high throughput while observing desired coverage, Quality of Service (QoS) and capacity. An…”
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The benefits of low operating voltage devices to the energy efficiency of parallel systems by Xavier-de-Souza, Samuel, Neves, Eduardo A., Furtunato, Alex F. A., Silveira, Luiz F. Q., Georgiou, Kyriakos, Eder, Kerstin I.

“…Programmable circuits such as general-purpose processors or FPGAs have their end-user energy efficiency strongly dependent on the program that they execute…”
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Application of wavelet coding in a control system using wireless sensor networks by Gama, Felipe O. S., Fernandes, Jefferson D., Semente, Rodrigo S., Salazar, Andres O., Silveira, Luiz F. Q.

“…The advance in wireless sensor networking technology is increasing the number of control systems that use these networks to transmit the relevant variable to…”
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Not faster nor slower tasks, but less energy hungry and parallel: Simulation results by Xavier-de-Souza, Samuel, Barros, Carlos A., Jales, Marcio O., Silveira, Luiz F. Q.

“…Before the current computational era, when the most common processors had a single processing core, the speed of computation was mainly defined by the speed of…”
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Performance evaluation of the maximum correntropy criterion in identification systems by Guimaraes, Joao P. F., Fontes, Aluisio I. R., Rlgo, Joilson B. A., Silveira, Luiz F. Q., Martins, Allan M.

“…The System identification explores ways to obtain mathematical models of an unknown system. However, as a result from the intrinsic random nature of system or…”
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Low-complexity receiver for wavelet-filtered M-ary modulations over flat-fading channels by Silveira, Luiz F. Q., Silveira, Luiz G. de Q., de Assis, Francisco M., Pinto, Ernesto Leite

“…As originally designed, the wavelet coding technique efficiently overcomes the fading effects, but limits the spectral efficiency of these systems to 1…”
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Soft-decision demodulation of wavelet-coded PSK signals over flat rayleigh fading channels by de Q. Silveira, Luiz G., Silveira, Luiz F.Q., Assis, Francisco M., Pinto, Ernesto L.

“…This paper proposes a new soft-decision approach for demodulating wavelet-coded PSK signals, which is based on minimizing a mean squared error. Performance…”
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