BLAST/MIMO performance with space-time processing receivers. - Francisco Rodrigo P. Cavalcanti; André L. F. de Almeida; Carlos Estêvão R. Fernandes; Walter C. Freitas Jr. (PIMRC, 2002)

Link performance evaluation for EGPRS with multiple antennas. - Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti; Charles Casimiro Cavalcante; Danilo Zanatta-Filho; André L. F. de Almeida (PIMRC, 2002)

Performance of MIMO Antenna Systems with Hybrids of Transmit Diversity and Spatial Multiplexing Using Soft-Output Decoding. - Walter C. Freitas Jr.; André L. F. de Almeida; João Cesar M. Mota; Francisco Rodrigo P. Cavalcanti; Raul L. de Lacerda Neto (ICT, 2004)

Hybrid MIMO Transceiver Scheme with Antenna Allocation and Partial CSI at Transmitter Side. - Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti; Renato Rocha Lopes (PIMRC, 2006)

MIMO Transmit Structure Assignment with QoS Provision in Wireless Systems. - Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti; Renato Rocha Lopes (PIMRC, 2007)

QoS based Radio Resource Allocation and Scheduling with Different User Data Rate Requirements for OFDMA Systems. - Ricardo B. dos Santos; Francisco Rafael Marques Lima; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (PIMRC, 2007)

Overload Prediction Based on Delay in Wireless OFDMA Systems. - E. O. Lucena; Francisco Rafael Marques Lima; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (GLOBECOM, 2010)

Performance Evaluation for Resource Allocation Algorithms in CoMP Systems. - Rodrigo L. Batista; Ricardo B. dos Santos; Tarcisio F. Maciel; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (VTC Fall, 2010)

Joint Opportunistic Beamforming and Subcarrier Assignment for Maximization of User Satisfaction in OFDMA Systems. - Tarcisio F. Maciel; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (VTC Fall, 2010)

Switching between Hybrid MIMO Structures for Video Transmission Based on Distortion Model. - Martin B. Obando; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (VTC Fall, 2010)

Scheduling for Improving System Capacity in Multiservice 3GPP LTE. - Francisco Rafael Marques Lima; Stefan Wänstedt; Francisco Rodrigo P. Cavalcanti; Walter Cruz Freitas Junior (J. Electr. Comput. Eng., 2010)

Hybrid space-time diversity and spatial-multiplexing MIMO cooperative scheme for wireless communication systems. - Daniel R. Furtado; F. Marcio Caldas; Walter C. Freitas Jr. (PIMRC, 2011)

Blind Receiver for Multi-Layered Space-Frequency Coded MIMO Schemes Based on Temporally Extended Linear Constellation Precoding. - André L. F. de Almeida; Walter C. Freitas Jr. (VTC Fall, 2011)

Maximizing Spectral Efficiency with Acceptable Service Provision in Multiple Antennas Scenarios. - Francisco Rafael Marques Lima; Nibia Souza Bezerra; Ricardo B. dos Santos; Tarcisio F. Maciel; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (EW, 2012)

Resource Assignment for Rate Maximization With QoS Guarantees in Multiservice Wireless Systems. - Francisco Rafael Marques Lima; Tarcisio F. Maciel; Walter Cruz Freitas Junior; Francisco Rodrigo P. Cavalcanti (IEEE Trans. Veh. Technol., 2012)

Block diagonalization with subspace based external interference mitigation. - Darlan C. Moreira; Paulo G. Normando; Carlos Igor Ramos Bandeira; Walter C. Freitas Jr.; Yuri C. B. Silva; Francisco Rodrigo P. Cavalcanti (PIMRC, 2013)

Clustering-based Assignment within CoMP systems. - Elvis Miguel Galeas Stancanelli; Yuri C. B. Silva; Tarcisio F. Maciel; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (PIMRC, 2013)

Performance of Joint Antenna and User Selection Schemes for Interference Alignment in MIMO Interference Channels. - Carlos Igor Ramos Bandeira; Darlan C. Moreira; Paulo G. Normando; Walter C. Freitas Jr.; Yuri C. B. Silva; Francisco Rodrigo P. Cavalcanti (VTC Spring, 2013)

A Modified Successive Interference Cancellation Algorithm for Hybrid Diversity/Spatial Multiplexing MIMO Schemes. - Walter C. Freitas Jr.; Carlos Igor Ramos Bandeira; Francisco M. C. Caldas; Wilkinson T. F. Moura (VTC Spring, 2013)

Hybrid MIMO schemes with MRT precoding and modified SIC receiver. - Francisco M. C. Caldas; Daniel C. Araujo 001; Walter C. Freitas Jr. (LATINCOM, 2014)

Performance of interference alignment techniques within CoMP-like systems. - Paulo G. Normando; Elvis Miguel Galeas Stancanelli; Yuri C. B. Silva; Walter C. Freitas Jr.; Francisco Rodrigo Porto Cavalcanti (LATINCOM, 2014)

Blind Joint Channel Estimation and Data Detection for Precoded Multi-Layered Space-Frequency MIMO Schemes. - Walter C. Freitas Jr.; André L. F. de Almeida; João Paulo C. L. da Costa (Circuits Syst. Signal Process., 2014)

Improved Spectral Efficiency With Acceptable Service Provision in Multiuser MIMO Scenarios. - Francisco Rafael Marques Lima; Tarcisio Ferreira Maciel; Walter Cruz Freitas Junior; Francisco Rodrigo Porto Cavalcanti (IEEE Trans. Veh. Technol., 2014)

Random Element Quantization for Finite Rate Feedback Systems. - Khaled Ardah; Darlan C. Moreira; Yuri C. B. Silva; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti (VTC Spring, 2015)

An ADMM approach to distributed coordinated beamforming in dynamic TDD networks. - Khaled Ardah; Yuri C. B. Silva; Walter C. Freitas Jr.; Francisco Rodrigo P. Cavalcanti; Gábor Fodor 001 (CAMSAP, 2017)

An efficient, low-cost ECC approach for critical-application memories. - Felipe G. A. e Silva; Otávio A. de Lima; Walter da C. Freitas; Fabian Vargas 001; Jarbas Silveira; César A. M. Marcon (SBCCI, 2017)

Sequential Closed-Form Semiblind Receiver for Space-Time Coded Multihop Relaying Systems. - Walter C. Freitas Jr.; Gérard Favier; André Lima Férrer de Almeida (IEEE Signal Process. Lett., 2017)

User Grouping Based on Spatial Compatibility for Dynamic-TDD Cooperative Networks. - Laszlon R. Costa; Darlan C. Moreira; Yuri C. B. Silva; Walter C. Freitas Jr.; Francisco Rafael Marques Lima (GLOBECOM, 2018)

Generalized Khatri-Rao and Kronecker space-time coding for MIMO relay systems with closed-form semi-blind receivers. - Walter C. Freitas Jr.; Gérard Favier; André L. F. de Almeida (Signal Process., 2018)

A Unifying Design of Hybrid Beamforming Architectures Employing Phase Shifters or Switches. - Khaled Ardah; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr.; Francisco Rodrigo Porto Cavalcanti (IEEE Trans. Veh. Technol., 2018)

Pricing-Based Distributed Beamforming for Dynamic Time Division Duplexing Systems. - Francisco R. V. Guimarães; Gábor Fodor 001; Walter C. Freitas Jr.; Yuri C. B. Silva (IEEE Trans. Veh. Technol., 2018)

A Novel Cell Reconfiguration Technique for Dynamic TDD Wireless Networks. - Khaled Ardah; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr.; Francisco Rodrigo Porto Cavalcanti (IEEE Wirel. Commun. Lett., 2018)

Distributed Beamforming in Dynamic TDD MIMO Networks With BS to BS Interference Constraints. - Eduardo de Olivindo Cavalcante; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr. (IEEE Wirel. Commun. Lett., 2018)

Tensor-Based Modeling and Processing for Channel Estimation in Two-Hop V2X MIMO Systems. - Paulo R. B. Gomes; Gábor Fodor 001; Walter da C. Freitas; André L. F. de Almeida; Yuri C. B. Silva (CSCN, 2019)

A Multi-Stream Pricing-Based Precoding and Power Control Algorithm for Dynamic TDD Networks. - Francisco R. V. Guimarães; Gábor Fodor 001; Walter da C. Freitas; Yuri C. B. Silva (CSCN, 2019)

Kalman-Filter-Based Tracking of Millimeter-Wave Channel Parameters for V2X Applications. - A. Regilane L. Paiva; Gábor Fodor 001; Walter C. Freitas Jr.; Yuri C. B. Silva; Carlos F. M. e Silva (CSCN, 2019)

Two-Way MIMO Decode-and-Forward Relaying Systems with Tensor Space-Time Coding. - Walter da C. Freitas; Gérard Favier; André L. F. de Almeida; Martin Haardt (EUSIPCO, 2019)

Tensor-Based Joint Channel and Symbol Estimation for Two-Way MIMO Relaying Systems. - Walter da C. Freitas; Gérard Favier; André L. F. de Almeida (IEEE Signal Process. Lett., 2019)

Bidirectional Sum-Power Minimization Beamforming in Dynamic TDD MIMO Networks. - Eduardo de Olivindo Cavalcante; Gábor Fodor 001; Yuri C. B. Silva; Walter da C. Freitas (IEEE Trans. Veh. Technol., 2019)

Tensor-Based Noninvasive Atrial Fibrillation Complexity Index For Catheter Ablation. - Lucas de S. Abdalah; Pedro Marinho R. de Oliveira; Walter da C. Freitas; Vicente Zarzoso (CinC, 2020)

Automated Atrial Fibrillation Source Detection Using Shallow Convolutional Neural Networks. - Isac N. Lira; Pedro Marinho R. de Oliveira; Walter da C. Freitas; Vicente Zarzoso (CinC, 2020)

Deep Reinforcement Learning for QoS-Constrained Resource Allocation in Multiservice Networks. - Juno V. Saraiva; Iran M. Braga Jr.; Victor Farias Monteiro; Francisco Rafael Marques Lima; Tarcisio F. Maciel; Walter C. Freitas Jr.; Francisco Rodrigo Porto Cavalcanti (CoRR, 2020)

User Scheduling Based on Multi-Agent Deep Q-Learning for Robust Beamforming in Multicell MISO Systems. - Iran M. Braga Jr.; Eduardo de Olivindo Cavalcante; Gábor Fodor 001; Yuri C. B. Silva; Carlos F. M. e Silva; Walter C. Freitas Jr. (IEEE Commun. Lett., 2020)

Hybrid Analog-Digital Beamforming Design for SE and EE Maximization in Massive MIMO Networks. - Khaled Ardah; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr.; André L. F. de Almeida (IEEE Trans. Veh. Technol., 2020)

Semiblind Uni-ALS receiver for a two-way MIMO relaying system based on the PARATUCK2 model. - Xi Han; Yingchun Zhou; André L. F. de Almeida; Walter C. Freitas Jr. (Digit. Signal Process., 2021)

Energy-efficient radio resource allocation for dual-hop relay-assisted orthogonal frequency division multiple access systems with quality of service provisioning. - Juno Vitorino Saraiva; Francisco Rafael Marques Lima; Alexandre Matos Pessoa; Tarcisio Ferreira Maciel; Walter da Cruz Freitas Junior; Francisco Rodrigo Porto Cavalcanti (Trans. Emerg. Telecommun. Technol., 2021)

Enhanced Tensor-Based Joint Channel and Symbol Estimation in Dual-Hop MIMO Relaying Systems. - Xi Han; Xinyuan Zhao; André L. F. de Almeida; Walter da C. Freitas; Wenle Bai (IEEE Commun. Lett., 2021)

Joint Resource Allocation and Transceiver Design for Sum-Rate Maximization Under Latency Constraints in Multicell MU-MIMO Systems. - Iran Mesquita Braga; Roberto Pinto Antonioli; Gábor Fodor 001; Yuri C. B. Silva; Carlos F. M. e Silva; Walter da C. Freitas (IEEE Trans. Commun., 2021)

Energy Efficiency Maximization Under Minimum Rate Constraints in Multi-Cell MIMO Systems With Finite Buffers. - Juno Vitorino Saraiva; Roberto Pinto Antonioli; Gábor Fodor 001; Iran Mesquita Braga; Walter C. Freitas Jr.; Yuri C. B. Silva; Carlos F. M. e Silva (IEEE Trans. Green Commun. Netw., 2021)

A Distributed Game-Theoretic Solution for Power Management in the Uplink of Cell-Free Systems. - Juno V. Saraiva; Roberto P. Antonioli; Gábor Fodor 001; Walter C. Freitas Jr.; Yuri C. B. Silva (GLOBECOM (Workshops), 2022)

Joint Pilot and Data Power Control Optimization in the Uplink of User-Centric Cell-Free Systems. - Iran Mesquita Braga; Roberto P. Antonioli; Gábor Fodor 001; Yuri C. B. Silva; Walter da C. Freitas (IEEE Commun. Lett., 2022)

A Network-Assisted Game-Theoretic Design to Power Control in Autoregressive Fading Channels. - Juno V. Saraiva; Roberto P. Antonioli; Gábor Fodor 001; Iran Mesquita Braga; Walter da C. Freitas; Yuri C. B. Silva (IEEE Commun. Lett., 2022)

On the Energy Efficiency of Cell-Free Systems With Limited Fronthauls: Is Coherent Transmission Always the Best Alternative? - Roberto Pinto Antonioli; Iran Mesquita Braga; Gábor Fodor 001; Yuri C. B. Silva; André L. F. de Almeida; Walter C. Freitas Jr. (IEEE Trans. Wirel. Commun., 2022)

Mixed Coherent and Non-Coherent Transmission for Multi-CPU Cell-Free Systems. - Roberto P. Antonioli; Iran Mesquita Braga; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr. (ICC, 2023)

Adaptive Power Management for Maximizing Spectral Efficiency and QoS in Cell-Free Systems. - Juno V. Saraiva; Roberto P. Antonioli; Gábor Fodor 001; Walter da C. Freitas; Yuri C. B. Silva (ISWCS, 2023)

Decentralized Joint Pilot and Data Power Control Based on Deep Reinforcement Learning for the Uplink of Cell-Free Systems. - Iran Mesquita Braga; Roberto Pinto Antonioli; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr. (IEEE Trans. Veh. Technol., 2023)

Efficient Battery Usage in Wireless-Powered Cell-Free Systems With Self-Energy Recycling. - Iran Mesquita Braga; Roberto P. Antonioli; Gábor Fodor 001; Yuri C. B. Silva; Walter da C. Freitas (IEEE Trans. Veh. Technol., 2023)

Tensor-Based Receivers for the Bistatic Sensing and Communication Scenario. - Walter da C. Freitas; Gérard Favier; André L. F. de Almeida (IEEECONF, 2024)

Power Allocation for Uplink Sensing and Communication in Cell-free ISAC Systems with Multi-Antenna Users and Multibeam. - Igor B. Palhano; Roberto P. Antonioli; Yuri C. B. Silva; Gábor Fodor 001; Walter C. Freitas Jr.; Michel G. dos Santos (VTC Fall, 2024)

On Estimating the Angle of Arrival and Doppler Frequency in Bistatic and Multistatic Systems. - Michel G. dos Santos; Gábor Fodor 001; Yuri C. B. Silva; Walter C. Freitas Jr.; Igor B. Palhano (VTC Fall, 2024)

Mitigating the Impact of Channel Aging in Cell-Free MIMO Systems Using a Channel Predictor Based on Extended Kalman Filter. - A. Regilane L. Paiva; Walter C. Freitas Jr.; Roberto P. Antonioli; Yuri C. B. Silva; Gábor Fodor 001 (IEEE Trans. Veh. Technol., 2025)