Published: 2021-01-08

Regular Papers

LoRa System for Monitoring and Facial Recognition

Vitor J. C. Rodrigues, Douglas F. Medeiros, Fabrício B. S. Carvalho, Waslon Terllizzie A. Lopes (Author)

1-16

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DOI: https://doi.org/10.14209/jcis.2021.1

A Comparative Analysis of Undersampling Techniques for Network Intrusion Detection Systems Design

Bruno Riccelli Silva, Ricardo Jardel Silveira, Manuel Gonçalves da Silva Neto, Paulo Cesar Cortez, Danielo Gonçalves Gomes (Author)

31-43

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DOI: https://doi.org/10.14209/jcis.2021.3

The Effective Secrecy Throughput for the Hybrid Wiretap Channel

Analysis Based on a Measurement Campaign

Ândrei Camponogara, Moisés Vidal Ribeiro (Author)

44-51

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DOI: https://doi.org/10.14209/jcis.2021.4

Performance Evaluation of MGfast Systems Over Coaxial Cables

Marx Freitas, Aline Ohashi, Diogo Acatauassu, João Weyl Costa, Eduardo Medeiros, Miguel Berg, Igor Almeida, André Cavalcante (Author)

52-61

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DOI: https://doi.org/10.14209/jcis.2021.5

Conversion of Scattering Parameters to Time-Domain for Imaging Applications: Rules and Examples

marcelo bender perotoni, Claudio Jose Bordin Jr., Kenedy Marconi Geraldo dos Santos (Author)

62-69

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DOI: https://doi.org/10.14209/jcis.2021.6

Coupling Impact Between a Radial Antenna and Guided Modes on Twisted-Pair Systems Operating in Millimeter-Wave

Brenda Sousa, Daynara Dias Souza, Gilvan Borges, Roberto Rodrigues, André Cavalcante, João Costa (Author)

75-84

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DOI: https://doi.org/10.14209/jcis.2021.8

Cascade of Linear Predictors for Deconvolution of Non-Stationary Channels in Sparse and Antisparse Scenarios

Renan Brotto, Kenji Nose-Filho, Romis Attux, João Marcos Travassos Romano (Author)

90-99

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DOI: https://doi.org/10.14209/jcis.2021.10

Lightweight and Secure Publish-Subscribe System for Cloud-Connected Ultra Low Power IoT Devices

Norisvaldo Ferraz Junior, Anderson A. A. Silva, Adilson E. Guelfi, Marcelo Teixeira de Azevedo, Sergio Takeo Kofuji (Author)

100-113

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DOI: https://doi.org/10.14209/jcis.2021.11

MUSA Grant-Free Access Framework and Blind Detection Receiver

Guilherme Pedro Aquino, Tiago Cardoso Barbosa, Marwa Chafii, Luciano Leonel Mendes, Abdul Karim Gizzini (Author)

119-127

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DOI: https://doi.org/10.14209/jcis.2021.13

An Analog Filter Bank-based Circuit for Performing the Adaptive Impedance Matching in PLC Systems

Luís Guilherme da Silva Costa, Antônio Carlos Moreirão de Queiroz, Vinícius Lagrota Rodrigues da Costa, Moisés Vidal Ribeiro (Author)

133-150

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DOI: https://doi.org/10.14209/jcis.2021.15

Improving Bluetooth Mesh Energy Efficiency Using Clustering

Joelton Deonei Gotz, Ohara Kerusauskas Rayel, Guilherme Luiz Moritz (Author)

156-165

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DOI: https://doi.org/10.14209/jcis.2021.17

A Compact Dual-Band UHF Microstrip Patch Antenna for CubeSat Applications

Wellington Guilherme da Silva, Antonio L. P. S. Campos, Dr, Juan Rafael Filgueira Guerra (Author)

166–172

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DOI: https://doi.org/10.14209/jcis.2021.18

Influence of a Direct-Conversion Receiver Model on the Performance of Detectors for Spectrum Sensing

Dayan Adionel Guimarães, Elivander Judas Tadeu Pereira (Author)

173–183

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DOI: https://doi.org/10.14209/jcis.2021.19

Measurement and Prediction of Short-Range Path Loss between 27 and 40 GHz in University Campus Scenarios

Glaucio Lopes Ramos, Carlos Vargas, Luiz da Silva Mello, Paulo Pereira, Robson Vieira, Sandro Gonçalves, Cássio Rego (Author)

184-191

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DOI: https://doi.org/10.14209/jcis.2021.20

Alinha-PB

A Phonetic Aligner for Brazilian Portuguese

João Segato Kruse, Plinio Almeida Barbosa (Author)

192-199

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DOI: https://doi.org/10.14209/jcis.2021.21

Impact of Feature Selection Methods on the Classification of DDoS Attacks using XGBoost

Pedro Henrique Hauy Netto de Araujo, Anderson Silva, Norisvaldo Ferraz Junior, Fabio Cabrini, Alessandro Santiago, Adilson Guelfi, Sergio Kofuji (Author)

200-214

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DOI: https://doi.org/10.14209/jcis.2021.22

Letters

Empirical Path Loss Model in City-forest Environment for Mobile Communications

Andre Augusto Pacheco de Carvalho, Iury Batalha, Miercio Alcantara, Bruno Castro, Fabricio Barros, Jasmine Araujo, Gervasio Cavalcante (Author)

70-74

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DOI: https://doi.org/10.14209/jcis.2021.7

A Semi-Distributed Approach for Uplink Max-Min Energy Efficiency Optimization with Minimum User Satisfaction and Adjacency Constraints

Iran Mesquita Braga Jr., Francisco Rafael Marques Lima, Tarcisio Ferreira Maciel, Victor Farias Monteiro (Author)

85-89

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DOI: https://doi.org/10.14209/jcis.2021.9

Transient Analysis of the Bias-Compensated LMS Algorithm

Rodrigo Marendaz Silva Pimenta, Newton Norat Siqueira, Mariane Rembold Petraglia, Diego Barreto Haddad (Author)

114-118

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DOI: https://doi.org/10.14209/jcis.2021.12

Optimizing the Spectral Efficiency in mmWave Massive SU-MIMO Systems Using Hybrid Processing

Alvaro Javier Ortega (Author)

128-132

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DOI: https://doi.org/10.14209/jcis.2021.14

Iterative Error Decimation for Syndrome-Based Neural Network Decoders

Jorge Kysnney Santos Kamassury, Danilo Silva (Author)

151-155

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DOI: https://doi.org/10.14209/jcis.2021.16

Tutorial Papers

A Survey of LoRaWAN Simulation Tools in ns-3

Jéssika C. da Silva, Daniel de L. Flor, Vicente Angelo de Sousa Junior, Níbia Souza Bezerra, Alvaro A. M. de Medeiros (Author)

17-30

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DOI: https://doi.org/10.14209/jcis.2021.2