Journal of Communication and Information Systems
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Published By Sociedad Brasileira De Telecomunicacaoes

1980-6604, 1980-6604
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scholarly journals Empirical Path Loss Model in City-forest Environment for Mobile Communications

2021 ◽  
Vol 36 (1) ◽  
pp. 70-74
Author(s):  
Andre Carvalho ◽  
Iury Batalha ◽  
Miercio Neto ◽  
Bruno Castro ◽  
Fabricio Barros ◽  
...  
Keyword(s):  
Mobile Communications ◽  
Path Loss ◽  
Forest Environment ◽  
Loss Model ◽  
Path Loss Model

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

2021 ◽  
Vol 36 (1) ◽  
pp. 166-172
Author(s):  
Wellington Silva ◽  
Antonio Campos ◽  
Juan Guerra
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Dual Band ◽  
Microstrip Patch

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

2021 ◽  
Vol 36 (1) ◽  
pp. 110-113
Author(s):  
Norisvaldo Junior ◽  
Anderson Silva ◽  
Adilson Guelfi ◽  
Marcelo Azevedo ◽  
Sergio Kofuji
Keyword(s):  
Low Power ◽  
Ultra Low Power ◽  
Iot Devices

scholarly journals A Survey of LoRaWAN Simulation Tools in ns-3

2021 ◽  
Vol 36 (1) ◽  
pp. 17-30
Author(s):  
Jéssika Silva ◽  
Daniel Flor ◽  
Vicente Junior ◽  
Nibia Bezerra ◽  
Alvaro Medeiros
Keyword(s):  
Simulation Tools

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

2021 ◽  
Vol 36 (1) ◽  
pp. 85-89
Author(s):  
Iran Braga Jr. ◽  
Francisco Lima ◽  
Tarcisio Maciel ◽  
Victor Monteiro
Keyword(s):  
Energy Efficiency ◽  
User Satisfaction ◽  
Efficiency Optimization ◽  
Distributed Approach

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

2021 ◽  
Vol 36 (1) ◽  
pp. 133-150
Author(s):  
Luís Costa ◽  
Antônio de Queiroz ◽  
Vinícius da Costa ◽  
Moisés Ribeiro
Keyword(s):  
Filter Bank ◽  
Impedance Matching ◽  
Analog Filter

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

2021 ◽  
Vol 36 (1) ◽  
pp. 75-84
Author(s):  
Brenda Sousa ◽  
Daynara Sousa ◽  
Gilvan Borges ◽  
André Cavalcante ◽  
João Costa
Keyword(s):  
Millimeter Wave ◽  
Twisted Pair ◽  
Guided Modes

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

2021 ◽  
Vol 36 (1) ◽  
pp. 90-99
Author(s):  
Renan Brotto ◽  
Kenji Nose-Filho ◽  
Romis Attux ◽  
João Romano
Keyword(s):  
Linear Predictors

scholarly journals Iterative Error Decimation for Syndrome-Based Neural Network Decoders

2021 ◽  
Vol 36 (1) ◽  
pp. 151-155
Author(s):  
Jorge Kamassury ◽  
Danilo Silva
Keyword(s):  
Neural Network ◽  
Iterative Error

scholarly journals Improving Bluetooth Mesh Energy Efficiency Using Clustering

2021 ◽  
Vol 36 (1) ◽  
pp. 156-165
Author(s):  
Joelton Gotz ◽  
Ohara Rayel ◽  
Guilherme Moritz
Keyword(s):  
Energy Efficiency
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