Walter C. Freitas Jr.
Orcid: 0000-0002-0821-3460Affiliations:
- Federal University of Ceará, Fortaleza, Brazil
According to our database1,
Walter C. Freitas Jr.
authored at least 56 papers
between 2002 and 2023.
Collaborative distances:
Collaborative distances:
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Bibliography
2023
Efficient Battery Usage in Wireless-Powered Cell-Free Systems With Self-Energy Recycling.
IEEE Trans. Veh. Technol., May, 2023
Decentralized Joint Pilot and Data Power Control Based on Deep Reinforcement Learning for the Uplink of Cell-Free Systems.
IEEE Trans. Veh. Technol., January, 2023
Proceedings of the IEEE International Conference on Communications, 2023
2022
On the Energy Efficiency of Cell-Free Systems With Limited Fronthauls: Is Coherent Transmission Always the Best Alternative?
IEEE Trans. Wirel. Commun., 2022
A Network-Assisted Game-Theoretic Design to Power Control in Autoregressive Fading Channels.
IEEE Commun. Lett., 2022
Joint Pilot and Data Power Control Optimization in the Uplink of User-Centric Cell-Free Systems.
IEEE Commun. Lett., 2022
A Distributed Game-Theoretic Solution for Power Management in the Uplink of Cell-Free Systems.
Proceedings of the IEEE Globecom 2022 Workshops, 2022
2021
Energy Efficiency Maximization Under Minimum Rate Constraints in Multi-Cell MIMO Systems With Finite Buffers.
IEEE Trans. Green Commun. Netw., 2021
Joint Resource Allocation and Transceiver Design for Sum-Rate Maximization Under Latency Constraints in Multicell MU-MIMO Systems.
IEEE Trans. Commun., 2021
Enhanced Tensor-Based Joint Channel and Symbol Estimation in Dual-Hop MIMO Relaying Systems.
IEEE Commun. Lett., 2021
Energy-efficient radio resource allocation for dual-hop relay-assisted orthogonal frequency division multiple access systems with quality of service provisioning.
Trans. Emerg. Telecommun. Technol., 2021
Semiblind Uni-ALS receiver for a two-way MIMO relaying system based on the PARATUCK2 model.
Digit. Signal Process., 2021
2020
Hybrid Analog-Digital Beamforming Design for SE and EE Maximization in Massive MIMO Networks.
IEEE Trans. Veh. Technol., 2020
User Scheduling Based on Multi-Agent Deep Q-Learning for Robust Beamforming in Multicell MISO Systems.
IEEE Commun. Lett., 2020
Deep Reinforcement Learning for QoS-Constrained Resource Allocation in Multiservice Networks.
CoRR, 2020
Automated Atrial Fibrillation Source Detection Using Shallow Convolutional Neural Networks.
Proceedings of the Computing in Cardiology, 2020
Proceedings of the Computing in Cardiology, 2020
2019
IEEE Trans. Veh. Technol., 2019
IEEE Signal Process. Lett., 2019
Proceedings of the 27th European Signal Processing Conference, 2019
Kalman-Filter-Based Tracking of Millimeter-Wave Channel Parameters for V2X Applications.
Proceedings of the 2019 IEEE Conference on Standards for Communications and Networking, 2019
A Multi-Stream Pricing-Based Precoding and Power Control Algorithm for Dynamic TDD Networks.
Proceedings of the 2019 IEEE Conference on Standards for Communications and Networking, 2019
Tensor-Based Modeling and Processing for Channel Estimation in Two-Hop V2X MIMO Systems.
Proceedings of the 2019 IEEE Conference on Standards for Communications and Networking, 2019
2018
Distributed Beamforming in Dynamic TDD MIMO Networks With BS to BS Interference Constraints.
IEEE Wirel. Commun. Lett., 2018
IEEE Wirel. Commun. Lett., 2018
IEEE Trans. Veh. Technol., 2018
A Unifying Design of Hybrid Beamforming Architectures Employing Phase Shifters or Switches.
IEEE Trans. Veh. Technol., 2018
Generalized Khatri-Rao and Kronecker space-time coding for MIMO relay systems with closed-form semi-blind receivers.
Signal Process., 2018
Proceedings of the IEEE Global Communications Conference, 2018
2017
Sequential Closed-Form Semiblind Receiver for Space-Time Coded Multihop Relaying Systems.
IEEE Signal Process. Lett., 2017
Proceedings of the 30th Symposium on Integrated Circuits and Systems Design: Chip on the Sands, 2017
Proceedings of the 2017 IEEE 7th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2017
2015
Proceedings of the IEEE 81st Vehicular Technology Conference, 2015
2014
Improved Spectral Efficiency With Acceptable Service Provision in Multiuser MIMO Scenarios.
IEEE Trans. Veh. Technol., 2014
Blind Joint Channel Estimation and Data Detection for Precoded Multi-Layered Space-Frequency MIMO Schemes.
Circuits Syst. Signal Process., 2014
Proceedings of the IEEE Latin-America Conference on Communications, 2014
Proceedings of the IEEE Latin-America Conference on Communications, 2014
2013
A Modified Successive Interference Cancellation Algorithm for Hybrid Diversity/Spatial Multiplexing MIMO Schemes.
Proceedings of the 77th IEEE Vehicular Technology Conference, 2013
Performance of Joint Antenna and User Selection Schemes for Interference Alignment in MIMO Interference Channels.
Proceedings of the 77th IEEE Vehicular Technology Conference, 2013
Proceedings of the 24th IEEE Annual International Symposium on Personal, 2013
Proceedings of the 24th IEEE Annual International Symposium on Personal, 2013
2012
Resource Assignment for Rate Maximization With QoS Guarantees in Multiservice Wireless Systems.
IEEE Trans. Veh. Technol., 2012
Maximizing Spectral Efficiency with Acceptable Service Provision in Multiple Antennas Scenarios.
Proceedings of the European Wireless 2012, 2012
2011
Blind Receiver for Multi-Layered Space-Frequency Coded MIMO Schemes Based on Temporally Extended Linear Constellation Precoding.
Proceedings of the 74th IEEE Vehicular Technology Conference, 2011
Hybrid space-time diversity and spatial-multiplexing MIMO cooperative scheme for wireless communication systems.
Proceedings of the IEEE 22nd International Symposium on Personal, 2011
2010
J. Electr. Comput. Eng., 2010
Switching between Hybrid MIMO Structures for Video Transmission Based on Distortion Model.
Proceedings of the 72nd IEEE Vehicular Technology Conference, 2010
Joint Opportunistic Beamforming and Subcarrier Assignment for Maximization of User Satisfaction in OFDMA Systems.
Proceedings of the 72nd IEEE Vehicular Technology Conference, 2010
Proceedings of the 72nd IEEE Vehicular Technology Conference, 2010
Proceedings of the Global Communications Conference, 2010
2007
QoS based Radio Resource Allocation and Scheduling with Different User Data Rate Requirements for OFDMA Systems.
Proceedings of the IEEE 18th International Symposium on Personal, 2007
Proceedings of the IEEE 18th International Symposium on Personal, 2007
2006
Hybrid MIMO Transceiver Scheme with Antenna Allocation and Partial CSI at Transmitter Side.
Proceedings of the IEEE 17th International Symposium on Personal, 2006
2004
Performance of MIMO Antenna Systems with Hybrids of Transmit Diversity and Spatial Multiplexing Using Soft-Output Decoding.
Proceedings of the Telecommunications and Networking, 2004
2002
Proceedings of the 13th IEEE International Symposium on Personal, 2002
Proceedings of the 13th IEEE International Symposium on Personal, 2002