Search Results - "Araujo, Daniel C."
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A Framework for Radio Resource Allocation and SDMA Grouping in Massive MIMO Systems
Published in IEEE access (2021)“…This work proposes a framework for multiuser massive Multiple Input Multiple Output (MIMO) systems which is composed of three parts - clustering , grouping ,…”
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High prevalence of neuropathic pain in the hand of patients with traumatic brachial plexus injury: a cross-sectional study
Published in Arquivos de neuro-psiquiatria (01-11-2016)“…To describe the pain profile of patients with traumatic brachial plexus injury. We enrolled 65 patients with traumatic brachial plexus injury. The Douleur…”
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Corrections to "Tensor-Based Channel Estimation for Massive MIMO-OFDM Systems"
Published in IEEE access (2019)“…In <xref ref-type="bibr" rid="ref1">[1] , an acknowledgment sentence within the "Funding agency" field of the online version was missed, as well as in the…”
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The effect of leucaena hay as a source of effective fibre and nutrients in diets with forage palm for finishing sheep in semi‐arid regions
Published in Animal science journal (01-01-2021)“…The present study was conducted to evaluate the intake, digestibility and nitrogen balance of diets for finishing sheep, containing leucaena hay as a source of…”
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Adaptive Modulation and Coding Based on Reinforcement Learning for 5G Networks
Published in 2019 IEEE Globecom Workshops (GC Wkshps) (01-12-2019)“…We design a self-exploratory reinforcement learning (RL) framework, based on the Q-learning algorithm, that enables the base station (BS) to choose a suitable…”
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Conference Proceeding -
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Beam Management Solution Using Q-Learning Framework
Published in 2019 IEEE 8th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP) (01-12-2019)“…The beam management is a procedure that properly selects the beams to overcome strong path loss attenuation. This procedure is specially important in 5G-NR…”
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Conference Proceeding -
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A Spectral Efficiency Enhancement for Chirp Spread Spectrum Downlink Communications
Published in 2020 IEEE Latin-American Conference on Communications (LATINCOM) (18-11-2020)“…The objective of the paper is to propose a transmitter/receiver system that increases the spectral efficiency in the context of CSS-type downlink…”
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Conference Proceeding -
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SEMFOGO: An Intelligent Fire Detection System for the Cerrado Biome
Published in 2023 XLIX Latin American Computer Conference (CLEI) (16-10-2023)“…Forest fires have the potential to cause enormous social, economic and, above all, environmental damage. Nowadays, the intelligent and early detection of…”
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Gastric reduction with omental ring in rabbits: technique evaluation
Published in Journal of the American College of Surgeons (01-10-2015)Get full text
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Hybrid beamforming design with finite-resolution phase-shifters for frequency selective massive MIMO channels
Published in 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-03-2017)“…Massive multiple-input multiple-output (MIMO) theoretical performance results have attracted the attention of the community due to the possibility of…”
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Conference Proceeding -
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Compressive sensing based channel estimation for massive MIMO systems with planar arrays
Published in 2015 IEEE 6th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP) (01-12-2015)“…In this paper, we consider the downlink training in a massive MIMO system, where the base station (BS) is equipped with a large-scale planar array and the user…”
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Conference Proceeding -
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A Bayesian Algorithm for GNSS Time-Delay Estimation Using an Uncalibrated Array
Published in 2024 19th International Symposium on Wireless Communication Systems (ISWCS) (14-07-2024)“…This paper introduces a Bayesian algorithm designed for precise estimation of the propagation time delay in global navigation satellite systems (GNSS) signals,…”
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Tensor-Based compressed estimation of frequency-selective mmWave MIMO channels
Published in 2017 IEEE 7th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP) (01-12-2017)“…This paper develops a novel channel estimation technique for frequency-selective mmWave MIMO channels using a hybrid analog-digital architecture. By adopting a…”
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Conference Proceeding -
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Improving spectral efficiency in large-array FDD systems with hybrid beamforming
Published in 2016 IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM) (01-07-2016)“…We investigate the spectral efficiency of large-array systems serving a single-antenna user in cellular frequencies, using full digital or hybrid…”
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Joint data and connection topology recovery in collaborative wireless sensor networks
Published in 2013 IEEE International Conference on Acoustics, Speech and Signal Processing (01-05-2013)“…This work considers a collaborative wireless sensor network where nodes locally exchange coded informative data before transmitting the combined data towards a…”
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Conference Proceeding -
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Channel estimation for millimeter-wave Very-Large MIMO systems
Published in 2014 22nd European Signal Processing Conference (EUSIPCO) (01-09-2014)“…We present an efficient pilot-assisted technique for downlink channel estimation in Very Large MIMO (VL-MIMO) systems operating in a 60 GHz indoor channel. Our…”
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Conference Proceeding -
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Hybrid MIMO schemes with MRT precoding and modified SIC receiver
Published in 2014 IEEE Latin-America Conference on Communications (LATINCOM) (01-11-2014)“…In the last few years, the researches in wireless mobile communication systems have focused on to provide optimization and efficient use of radio resources in…”
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Conference Proceeding -
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Adaptive Modulation and Coding based on Reinforcement Learning for 5G Networks
Published 25-11-2019“…We design a self-exploratory reinforcement learning (RL) framework, based on the Q-learning algorithm, that enables the base station (BS) to choose a suitable…”
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Journal Article -
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A Low Complexity Solution for Resource Allocation and SDMA Grouping in Massive MIMO Systems
Published in 2018 15th International Symposium on Wireless Communication Systems (ISWCS) (01-08-2018)“…This work investigates the space-division multiple access grouping problem in multiuser massive multiple input multiple output (MIMO). The adopted approach…”
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