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View article: Experimental design and performance evaluation of a solar panel-based visible light communication system for greenhouse applications
Experimental design and performance evaluation of a solar panel-based visible light communication system for greenhouse applications Open
This paper presents the design, implementation, and experimental evaluation of a visible light communication (VLC) system using a small solar panel with a custom signal-conditioning circuit as an optical receiver in a greenhouse environmen…
View article: Development of an Extreme Machine Learning-Based Computational Application for the Detection of Armillaria in Cherry Trees
Development of an Extreme Machine Learning-Based Computational Application for the Detection of Armillaria in Cherry Trees Open
This paper addresses the automatic detection of Armillaria disease in cherry trees, a high-impact phytosanitary threat to agriculture. As a solution, a computer application is developed based on RGB images of cherry trees and the exploitat…
View article: Gateway-Free LoRa Mesh on ESP32: Design, Self-Healing Mechanisms, and Empirical Performance
Gateway-Free LoRa Mesh on ESP32: Design, Self-Healing Mechanisms, and Empirical Performance Open
LoRa is a long-range, low-power wireless communication technology widely used in Internet of Things (IoT) applications. However, its conventional implementation through Long Range Wide Area Network (LoRaWAN) presents operational constraint…
View article: Quantum–Classical Optimization for Efficient Genomic Data Transmission
Quantum–Classical Optimization for Efficient Genomic Data Transmission Open
This paper presents a hybrid computational architecture for efficient and robust digital transmission inspired by helical genetic structures. The proposed system integrates advanced modulation schemes, such as multi-pulse-position modulati…
View article: Sound Source Localization Using Hybrid Convolutional Recurrent Neural Networks in Undesirable Conditions
Sound Source Localization Using Hybrid Convolutional Recurrent Neural Networks in Undesirable Conditions Open
Sound event localization and detection (SELD) is a fundamental task in spatial audio processing that involves identifying both the type and location of sound events in acoustic scenes. Current SELD models often struggle with low signal-to-…
View article: Hybrid Deep Learning Approach for Automated Sleep Cycle Analysis
Hybrid Deep Learning Approach for Automated Sleep Cycle Analysis Open
Health and well-being, both mental and physical, depend largely on adequate sleep. Many conditions arise from a disrupted sleep cycle, significantly deteriorating the quality of life of those affected. The analysis of the sleep cycle provi…
View article: Implementation of a Remote Monitoring Station for Measuring UV Radiation Levels from Solarimeters Using LoRaWAN Technology
Implementation of a Remote Monitoring Station for Measuring UV Radiation Levels from Solarimeters Using LoRaWAN Technology Open
This work presents the development and implementation of a remote UV radiation monitoring station using LoRaWAN technology at the Universidad de las Américas. The main objective was to establish a system capable of measuring UV radiation l…
View article: Line-of-Sight Probability Analysis of Underground Mining Visible Light Communication Diversity Schemes Under Random Receiver Orientation
Line-of-Sight Probability Analysis of Underground Mining Visible Light Communication Diversity Schemes Under Random Receiver Orientation Open
Visiblelightcommunication (VLC) is an emerging technology that offers an alternative to traditional wireless communications systems. However, the technology presents limitations related to the impact of the receiver’s orientation, which ca…
View article: Statistical Modeling of Wall Roughness and Its Influence on NLOS VLC Channels in Underground Mining
Statistical Modeling of Wall Roughness and Its Influence on NLOS VLC Channels in Underground Mining Open
This study investigates the impact of wall roughness on the performance of the Non-Line-of-Sight (NLOS) component in Visible Light Communication (VLC) systems designed for underground mining environments, adhering to safety and communicati…
View article: Intelligent Reflective Surface-Assisted Visible Light Communication with Angle Diversity Receivers and RNN: Optimizing Non-Line-of-Sight Indoor Environments
Intelligent Reflective Surface-Assisted Visible Light Communication with Angle Diversity Receivers and RNN: Optimizing Non-Line-of-Sight Indoor Environments Open
This paper presents an innovative approach to improving visible light communication (VLC) systems in total shadowing conditions by integrating intelligent reflecting surfaces (IRSs), angle diversity receivers (ADRs), and recurrent neural n…
View article: Intrusion Detection in IoT Networks Using Dynamic Graph Modeling and Graph-Based Neural Networks
Intrusion Detection in IoT Networks Using Dynamic Graph Modeling and Graph-Based Neural Networks Open
The rapid expansion of Internet of Things (IoT) networks has significantly increased security vulnerabilities, exposing critical infrastructures to sophisticated cyberattacks. Traditional Intrusion Detection Systems, based mainly on signat…
View article: Optimized Physiological Monitoring System for COVID-19 Using VLC-Based 3D Localization and Markov Chain Analysis
Optimized Physiological Monitoring System for COVID-19 Using VLC-Based 3D Localization and Markov Chain Analysis Open
This research presents an optimized physiological monitoring system for COVID-19 patients, integrating Visible Light Communication (VLC)-based three-dimensional localization with Markov Chain Analysis. The proposed system enables real-time…
View article: Technical Evaluation of Android Parental Control Tools and PDNS Filtering Services: The Chilean Context
Technical Evaluation of Android Parental Control Tools and PDNS Filtering Services: The Chilean Context Open
The growing exposure of Children and Adolescents (C&A) to online risks has led to the widespread adoption of parental control tools. However, in Chile, the legal framework that requires ISPs to offer such solutions does not establish minim…
View article: Extreme Learning Machine Models for Classifying the LED Source in a 2D Visible Light Positioning Database
Extreme Learning Machine Models for Classifying the LED Source in a 2D Visible Light Positioning Database Open
In recent years, there has been a surge in interest in indoor positioning systems that use visible light communication (VLC) technology combined with light‐emitting diodes (LEDs). These systems have gained attention because of their abilit…
View article: An Analysis of WiFi Coverage Modeling for a Hotspot in the Parish of Checa Employing Deterministic and Empirical Propagation Models
An Analysis of WiFi Coverage Modeling for a Hotspot in the Parish of Checa Employing Deterministic and Empirical Propagation Models Open
This study presents the analysis and comparison of Wi-Fi coverage modeling for a hotspot using deterministic and empirical propagation models developed by researchers from the Universidad de Las Américas in Quito, Ecuador. Signal intensity…
View article: Comprehensive Survey on VLC in E-Healthcare: Channel Coding Schemes and Modulation Techniques
Comprehensive Survey on VLC in E-Healthcare: Channel Coding Schemes and Modulation Techniques Open
The integration of information and communication technologies in the field of healthcare has generated a positive transformation in the traditional way of providing patient care, optimizing medical services, and streamlining healthcare ope…
View article: Enhanced Epileptic Seizure Detection through Wavelet-Based Analysis of EEG Signal Processing
Enhanced Epileptic Seizure Detection through Wavelet-Based Analysis of EEG Signal Processing Open
Epilepsy affects millions worldwide, making timely seizure detection crucial for effective treatment and enhanced well-being. Electroencephalogram (EEG) analysis offers a non-intrusive solution, but its visual interpretation is prone to er…
View article: Behind the Door: Practical Parameterization of Propagation Parameters for IEEE 802.11ad Use Cases
Behind the Door: Practical Parameterization of Propagation Parameters for IEEE 802.11ad Use Cases Open
The integration of the 60 GHz band into the IEEE 802.11 standard has revolutionized indoor wireless services. However, this band presents unique challenges to indoor wireless communication infrastructure, originally designed to handle data…
View article: Performance Analysis of the Particle Swarm Optimization Algorithm in a VLC System for Localization in Hospital Environments
Performance Analysis of the Particle Swarm Optimization Algorithm in a VLC System for Localization in Hospital Environments Open
Localization in hospitals can be valuable in improving different services in medical environments. In this sense, an accurate location system in this environment requires adequately enabling communication technology. However, widely adopte…
View article: Design and Evaluation of a Visible Light Communication System Under Varied Atmospheric Conditions for Smart and Sustainable Farming
Design and Evaluation of a Visible Light Communication System Under Varied Atmospheric Conditions for Smart and Sustainable Farming Open
This paper proposes an experimental design and evaluation of visible light communication (VLC) based connectivity for smart and sustainable farming (SSF) by considering a controlled greenhouse environment. SSF integrates complete data-driv…
View article: Hybrid Digital Twin Model for Greenhouse and Underground Environments
Hybrid Digital Twin Model for Greenhouse and Underground Environments Open
This research delves into the application of Digital Twins (DTs) in the realm of smart agriculture, with a particular focus on greenhouse and underground environments. By integrating computer simulations with empirical testing, we validate…
View article: A New Internet of Things Hybrid VLC/RF System for m-Health in an Underground Mining Industry
A New Internet of Things Hybrid VLC/RF System for m-Health in an Underground Mining Industry Open
This paper proposes a new system based on the Industrial Internet of Things (IIoT) for the monitoring of Mobile Health (m-Health) of workers in the underground mining industry. The proposed architecture uses a hybrid model in data transmis…
View article: On the Performance of Intelligent Reconfigurable Surfaces for 6G Indoor Visible Light Communications Systems
On the Performance of Intelligent Reconfigurable Surfaces for 6G Indoor Visible Light Communications Systems Open
Indoor visible light communication (VLC) systems have been extensively studied; however, they present some problems when the main propagation channel component, called Line-of-Sight (LoS), is partially or totally blocked. The effect of thi…
View article: Speaker Counting Based on a Novel Hive Shaped Nested Microphone Array by WPT and 2D Adaptive SRP Algorithms in Near-Field Scenarios
Speaker Counting Based on a Novel Hive Shaped Nested Microphone Array by WPT and 2D Adaptive SRP Algorithms in Near-Field Scenarios Open
Speech processing algorithms, especially sound source localization (SSL), speech enhancement, and speaker tracking are considered to be the main fields in this application. Most speech processing algorithms require knowing the number of sp…
View article: A New COVID-19 Detection Method Based on CSK/QAM Visible Light Communication and Machine Learning
A New COVID-19 Detection Method Based on CSK/QAM Visible Light Communication and Machine Learning Open
This article proposes a novel method for detecting coronavirus disease 2019 (COVID-19) in an underground channel using visible light communication (VLC) and machine learning (ML). We present mathematical models of COVID-19 Deoxyribose Nucl…
View article: A Wavelength-Dependent Visible Light Communication Channel Model for Underground Environments and Its Performance Using a Color-Shift Keying Modulation Scheme
A Wavelength-Dependent Visible Light Communication Channel Model for Underground Environments and Its Performance Using a Color-Shift Keying Modulation Scheme Open
Reliable wireless communications are crucial for ensuring workers’ safety in underground tunnels and mines. Visible light communications (VLC) have been proposed as auxiliary systems for short-range wireless communications in underground e…
View article: A Novel and Adaptive Angle Diversity-Based Receiver for 6G Underground Mining VLC Systems
A Novel and Adaptive Angle Diversity-Based Receiver for 6G Underground Mining VLC Systems Open
Visible light communication (VLC) is considered an enabling technology for future 6G wireless systems. Among the many applications in which VLC systems are used, one of them is harsh environments such as Underground Mining (UM) tunnels. Ho…
View article: Investigation of Indoor Atmospheric Attenuation in Visible Light Positioning for Industrial Applications
Investigation of Indoor Atmospheric Attenuation in Visible Light Positioning for Industrial Applications Open
International audience
View article: An Enhanced VLC Channel Model for Underground Mining Environments Considering a 3D Dust Particle Distribution Model
An Enhanced VLC Channel Model for Underground Mining Environments Considering a 3D Dust Particle Distribution Model Open
Underground Mining (UM) is a hostile industry that generally requires a wireless communication system as a cross-cutting axis for its optimal operation. Therefore, in the last five years, it has been shown that, in addition to radio-freque…
View article: 3D Multiple Sound Source Localization by Proposed T-Shaped Circular Distributed Microphone Arrays in Combination with GEVD and Adaptive GCC-PHAT/ML Algorithms
3D Multiple Sound Source Localization by Proposed T-Shaped Circular Distributed Microphone Arrays in Combination with GEVD and Adaptive GCC-PHAT/ML Algorithms Open
Multiple simultaneous sound source localization (SSL) is one of the most important applications in the speech signal processing. The one-step algorithms with the advantage of low computational complexity (and low accuracy), and the two-ste…