Theses

  • Doctoral thesis “Signal processing methods for large-scale multi-antenna systems” (pdf)
  • Mestrado’s thesis “On supervised multilinear filtering: applications to system identification and antenna beamforming” (pdf)
  • Master’s thesis “Tensor models applied to atrial fibrillation analysis” (pdf)
  • Bachelor’s thesis “Separação cega de fontes: métodos e aplicações” (pdf)

Journal Papers

  • L. N. Ribeiro, S. Schwarz, A. L. F. de Almeida, “Double-sided massive MIMO transceivers for mmWave Communications,” IEEE Access, v. 7, pp. 157667-157679, 2019 (open access)

  • L. N. Ribeiro, A. L. F. de Almeida, J. C. M. Mota, “Separable linearly constrained minimum variance beamformers,” Signal Processing, v. 158, pp. 15-25, 2019 (pdf)

  • L. N. Ribeiro, A. L. F. de Almeida, J. A. Nossek, J. C. M. Mota, “Low-complexity separable beamformers for massive antenna array systems,” IET Signal Processing, v. 13, pp. 434-442, 2019 (pdf)

  • L. N. Ribeiro, S. Schwarz, M. Rupp, A. L. F. de Almeida, “Energy efficiency of mmWave massive MIMO precoding with low-resolution DACs”, IEEE Journal of Selected Topics in Signal Processing, v. 12, pp. 298-312, 2018 (pdf)

  • L. N. Ribeiro, J. C. M. Mota, A. L. F. de Almeida, “Processamento Tensorial de sinais aplicado às comunicações,” Revista de Tecnologia da Informação e Comunicação, v. 5, pp. 14-18, 2015 (pdf)

Conference Proceedings

  • D. M. V. Melo, L. T. N. Landau, L. N. Ribeiro, M. Haardt, “Time-Instance Zero-Crossing Precoding with Quality-of-Service Constraints”, under revision

  • L. N. Ribeiro, S. Schwarz, M. Haardt, “Low-Complexity Zero-Forcing Precoding for XL-MIMO Transmissions,” accepted at EUSIPCO’21 (arXiv)

  • L. N. Ribeiro, S. Schwarz, A. L. F. de Almeida, M. Haardt, “Low-complexity massive MIMO tensor precoding,” to appear at 2020 Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, California, USA (arXiv)

  • D. M. V. Melo, L. T. Landau, L. N. Ribeiro, M. Haardt, “Iterative MMSE space-time zero-crossing precoding for channels with 1-bit quantization and oversampling,” to appear at 2020 Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, California, USA

  • L. N. Ribeiro, J. C. M. Mota, D. Le Ruyet, E. S. de Cursi, “Channel and message identification on MIMO channels with non-Gaussian noise,” Proc. 5th International Symposium on Uncertainty Quantification and Stochastic Modeling (Uncertainties), 2020, Rouen, France (pdf)

  • L. N. Ribeiro, A. L. F. de Almeida, J. C. M. Mota, “Low-rank tensor MMSE equalization,” Proc.16th IEEE International Symposium on Wireless Communication Systems (ISWCS), 2019, Oulu, Finland (pdf)

  • L. N. Ribeiro, A. L. F. de Almeida, N. J. Myers, R. W. Heath Jr., “Tensor-based estimation of mmWave MIMO channels with carrier frequency offset,” Proc. 41th International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2019, Brighton, UK (pdf)

  • L. N. Ribeiro, B. Sokal, A. L. F. de Almeida, J. C. M. Mota, “Separable least mean squares beamforming,” 36th Brazilian Symposium on Telecommunications (SBrT), 2018, Campina Grande, Brazil (pdf)

  • L. N. Ribeiro, S. Schwarz, M. Rupp, A. L. F. de Almeida, J. C. M. Mota, “A low-complexity equalizer for massive MIMO systems based on array separability,” Proc. 25th European Signal Processing Conference (EUSIPCO), 2017, Kos, Greece (pdf)

  • L. N. Ribeiro, A. L. F. de Almeida, V. Zarzoso, “Enhanced block term decomposition for atrial activity extraction in atrial fibrillation ECG,” 9th IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), 2016, Rio de Janeiro, Brazil (pdf)

  • L. N. Ribeiro, A. L. F. de Almeida, J. M. M. Mota, “Tensor beamforming for multilinear translation invariant arrays,” Proc. 41st International Conference on Acoustics, Speech, and Signal Processing, 2016 (ICASSP), Shanghai, China (pdf)

  • L. N. Ribeiro, A. R. Hidalgo-Muñoz, G. Favier, J. C. M. Mota, A. L. F. de Almeida, V. Zarzoso, “A tensor decomposition approach to noninvasive atrial activity extraction in atrial fibrillation ECG,” Proc. 23rd European Signal Processing Conference (EUSIPCO), 2015, Nice, France (pdf)

  • L. N. Ribeiro, A. R. Hidalgo-Muñoz, V. Zarzoso, “Atrial signal extraction in atrial fibrillation electrocardiograms using a tensor decomposition approach,” Proc. 7th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2015, Milan, Italy (pdf)

  • L. N. Ribeiro, A. L. F. de Almeida, J. M. M. Mota, “Identification of separable systems using trilinear filtering,” Proc. IEEE 6th International Workshop on Computational Advances in Multisensor Adaptive Processing (CAMSAP), 2015, Cancún, Mexico (pdf)

  • L. N. Ribeiro, J. M. M. Mota, A. L. F. de Almeida, “Trilinear Wiener Filtering: application to equalization problems,” Proc. 31st Brazilian Symposium on Telecommunications (SBrT), 2013, Fortaleza, Brazil (pdf)

Presentations