Vol. 36 No. 1 (2021)

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