43 citations · 182 across the 16 of their papers we have counts for
19 papers
Energy-Neutral Coverage Optimization by Joint Deployment and Scheduling in Ambient IoT Devices with Directional Sensing
David E. Ruíz-Guirola, Samuel Montejo-Sánchez, Richard Demo Souza +1
Ambient IoT (A-IoT) devices rely on energy harvesting and duty cycling to sustain operation, thereby fundamentally changing collaborative sensing compared with traditional always-O…
Energy Management and Wake-up for IoT Networks Powered by Energy Harvesting
David Ernesto Ruiz-Guirola, Samuel Montejo-Sanchez, Israel Leyva-Mayorga +3
The rapid growth of the Internet of Things (IoT) presents sustainability challenges such as increased maintenance requirements and overall higher energy consumption. This motivates…
Wireless Energy Transfer Beamforming Optimization for Intelligent Transmitting Surface
Osmel Martínez Rosabal, Onel Alcaraz López, Victoria Dala Pegorara Souto +4
Radio frequency (RF) wireless energy transfer (WET) is a promising technology for powering the growing ecosystem of Internet of Things (IoT) using power beacons (PBs). Recent resea…
Discontinuous Reception with Adjustable Inactivity Timer for IIoT
David E. Ruíz-Guirola, Carlos A. Rodríguez-López, Onel L. A. López +3
Discontinuous reception (DRX) is a key technology for reducing the energy consumption of industrial Internet of Things (IIoT) devices. Specifically, DRX allows the devices to opera…
Non-Orthogonal Multiple-Access Strategies for Direct-to-Satellite IoT Networks
Felipe Augusto Tondo, Jean Michel de Souza Sant'Ana, Samuel Montejo-Sánchez +3
Direct-to-Satellite IoT (DtS-IoT) has the potential to support multiple verticals, including agriculture, industry, smart cities, and environmental disaster prevention. This work i…
Configuring Transmission Thresholds in IIoT Alarm Scenarios for Energy-Efficient Event Reporting
David E. Ruíz-Guirola, Onel L. A. López, Samuel Montejo-Sánchez
Industrial Internet of Things (IIoT) applications involve real-time monitoring, detection, and data analysis. This is challenged by the intermittent activity of IIoT devices (IIoTD…
Intelligent Duty Cycling Management and Wake-up for Energy Harvesting IoT Networks with Correlated Activity
David E. Ruíz-Guirola, Onel L. A. López, Samuel Montejo-Sánchez +3
This paper presents an approach for energy-neutral Internet of Things (IoT) scenarios where the IoT devices (IoTDs) rely entirely on their energy harvesting capabilities to sustain…
Performance Analysis of ML-based MTC Traffic Pattern Predictors
David E. Ruiz-Guirola, Onel L. A. Lopez, Samuel Montejo-Sanchez +2
Prolonging the lifetime of massive machine-type communication (MTC) networks is key to realizing a sustainable digitized society. Great energy savings can be achieved by accurately…
Energy-Efficient Wake-Up Signalling for Machine-Type Devices Based on Traffic-Aware Long-Short Term Memory Prediction
David E. Ruíz-Guirola, Carlos A. Rodríguez-López, Samuel Montejo-Sánchez +3
Reducing energy consumption is a pressing issue in low-power machine-type communication (MTC) networks. In this regard, the Wake-up Signal (WuS) technology, which aims to minimize…
CSI-free Rotary Antenna Beamforming for Massive RF Wireless Energy Transfer
Onel L. A. López, Hirley Alves, Samuel Montejo-Sánchez +2
Radio frequency (RF) wireless energy transfer (WET) is a key technology that may allow seamlessly powering future massive low-energy Internet of Things (IoT) networks. To enable ef…
On the Optimal Deployment of Power Beacons for Massive Wireless Energy Transfer
Osmel Martínez Rosabal, Onel L. Alcaraz López, Hirley Alves +2
Wireless energy transfer (WET) is emerging as an enabling green technology for Internet of Things (IoT) networks. WET allows the IoT devices to wirelessly recharge their batteries…
LoRa Performance Analysis with Superposed Signal Decoding
J. M. de Souza Sant'Ana, A. Hoeller, R. D. Souza +2
This paper considers the use of successive interference cancellation (SIC) to decode superposed signals in Long Range (LoRa) networks. We build over a known stochastic geometry mod…
Performance Analysis of Single-Cell Adaptive Data Rate-Enabled LoRaWAN
Arliones Hoeller, Richard Demo Souza, Samuel Montejo-Sánchez +1
LoRaWAN enables massive connectivity for Internet-of-Things applications. Many published works employ stochastic geometry to derive outage models of LoRaWAN over fading channels as…
On CSI-free Multi-Antenna Schemes for Massive RF Wireless Energy Transfer
Onel L. A. López, Samuel Montejo-Sánchez, Richard D. Souza +2
Wireless Energy Transfer (WET) is emerging as a potential green enabler for massive Internet of Things (IoT). Herein, we analyze Channel State Information (CSI)-free multi-antenna…
Hybrid Coded Replication in LoRa Networks
Jean Michel de Souza Sant'Ana, Arliones Hoeller, Richard Demo Souza +3
Low Power Wide Area Networks (LPWAN) are wireless connectivity solutions for Internet-of-Things (IoT) applications, including industrial automation. Among the several LPWAN technol…
Massive Wireless Energy Transfer: Enabling Sustainable IoT Towards 6G Era
Onel L. Alcaraz López, Hirley Alves, Richard Demo Souza +3
Recent advances on wireless energy transfer (WET) make it a promising solution for powering future Internet of Things (IoT) devices enabled by the upcoming sixth generation (6G) er…
Rate Control for Wireless-Powered Communication Network with Reliability and Delay Constraints
Onel L. Alcaraz López, Hirley Alves, Richard Demo Souza +2
We consider a two-phase Wireless-Powered Communication Network under Nakagami-m fading, where a wireless energy transfer process first powers a sensor node that then uses such ener…
Optimum LoRaWAN Configuration Under Wi-SUN Interference
Arliones Hoeller-Jr., Richard Demo Souza, Hirley Alves +3
Smart Utility Networks (SUN) rely on the Wireless-SUN (Wi-SUN) specification for years. Recently practitioners and researchers have considered Low-Power Wide-Area Networks (LPWAN)…
Statistical Analysis of Multiple Antenna Strategies for Wireless Energy Transfer
Onel L. Alcaraz López, Hirley Alves, Richard Demo Souza +1
Wireless Energy Transfer (WET) is emerging as a potential solution for powering small energy-efficient devices. We propose strategies that use multiple antennas at a power station,…