Graduate Research Assistant
Concordia University
Montreal, QC
Sep 2017 - Apr 2021
Hybrid beamforming for narrowband and broadband/OFDM millimeter-wave massive MIMO
- Investigated hybrid beamforming techniques for point-to-point and multi-user mmWave massive MIMO systems, targeting spectral efficiency improvements for 5G and beyond.
- Formulated constrained matrix and tensor decomposition methods to address hybrid beamforming design under hardware and system limitations.
- Developed and evaluated solvers for non-convex optimization problems, analyzing convergence behavior and computational complexity.
- Designed and conducted simulation studies across multiple scenarios, translating results into documented findings and research reports.
Teaching Assistant
Concordia University
Montreal, QC
Summer 2019, Fall 2020
Digital Signal Processing
- Designed MATLAB-based assignments and developed reference solutions to support core DSP concepts.
- Supported student learning through office hours, assignment guidance, and detailed feedback on projects and exams.
- Delivered lectures to classes of 30+ students, covering selected course topics and reinforcing key theoretical concepts.
Graduate Research Assistant
Federal University of Santa Catarina
Florianopolis, Brazil
Mar 2014 - Jul 2017
Low-complexity adaptive algorithms for beamforming in smart antennas
- Conducted a comprehensive review of adaptive beamforming techniques for antenna array systems, identifying gaps in complexity and performance trade-offs.
- Developed low-complexity reduced-rank adaptive beamforming algorithms and joint antenna selection strategies to improve computational efficiency.
- Formulated stochastic models for constrained LMS-based approaches, supporting the theoretical foundation of the proposed methods.
- Implemented and evaluated algorithms through simulation studies, comparing performance against existing techniques under varying system conditions.
Undergraduate Research Assistant
Santa Catarina State University
Joinville, Brazil
Jul 2011 - Jun 2012
Speaker-independent constrained vocabulary automatic speech recognition
- Built a speech dataset of 3,500+ recordings from 30 speakers for a constrained-vocabulary Brazilian Portuguese recognition task.
- Developed an end-to-end processing pipeline, including voice activity detection, audio preprocessing, and MFCC feature extraction.
- Implemented and trained machine learning models in MATLAB, achieving up to 92% classification accuracy.
Undergraduate Research Assistant
Santa Catarina State University
Joinville, Brazil
Jan 2009 - Jun 2010
Assistive technology adaptations for visually impaired individuals
- Developed an assistive washing machine interface for visually impaired users, enabling audio-based interaction and feedback.
- Implemented embedded software in C for an ARM microcontroller, including drivers for a color sensor, external memory, and audio CODEC (I2S interface).
- Integrated color detection and audio playback features, allowing users to identify clothing and receive spoken feedback during operation.