Vol 36 No 1 (2021) | Journal of Communication and Information Systems

Regular Papers

LoRa System for Monitoring and Facial Recognition

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

1-16
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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

31-43
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The Effective Secrecy Throughput for the Hybrid Wiretap Channel Analysis Based on a Measurement Campaign

Ândrei Camponogara, Moisés Vidal Ribeiro

44-51
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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

52-61
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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

62-69
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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

75-84
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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

90-99
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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

100-113
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MUSA Grant-Free Access Framework and Blind Detection Receiver

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

119-127
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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

133-150
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Improving Bluetooth Mesh Energy Efficiency Using Clustering

Joelton Deonei Gotz, Ohara Kerusauskas Rayel, Guilherme Luiz Moritz

156-165
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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

166–172
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Influence of a Direct-Conversion Receiver Model on the Performance of Detectors for Spectrum Sensing

Dayan Adionel Guimarães, Elivander Judas Tadeu Pereira

173–183
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Measurement and Prediction of Short-Range Path Loss between 27 and 40 GHz in University Campus Scenarios

Glaucio Lopes Ramos, Luiz da Silva Mello

184-191
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Alinha-PB A Phonetic Aligner for Brazilian Portuguese

João Segato Kruse, Plinio Almeida Barbosa

192-199
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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

200-214
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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

70-74
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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

85-89
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Transient Analysis of the Bias-Compensated LMS Algorithm

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

114-118
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Optimizing the Spectral Efficiency in mmWave Massive SU-MIMO Systems Using Hybrid Processing

Alvaro Javier Ortega

128-132
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Iterative Error Decimation for Syndrome-Based Neural Network Decoders

Jorge Kysnney Santos Kamassury, Danilo Silva

151-155
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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

17-30
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