Valdivia, Leonardo
Main Affiliation
Preferred name
Valdivia, Leonardo
Official Name
Valdivia Parga, Leonardo Jesús
ORCID
0000-0001-7545-7441
Researcher ID
DZS-8846-2022
Scopus Author ID
57007977900
39 results
Now showing 1 - 10 of 39
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Item type:Publication, A transformer-based method for radio-frequency fingerprinting of IoT devices(Elsevier BV, 2026-04); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A Systematic Review and Energy-Centric Taxonomy of Jamming Attacks and Countermeasures in Wireless Sensor Networks(MDPI AG, 2026-01-15); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Design, Construction and Validation of a Vibration Table with Distributed Load Cells for Dynamic Measurement(Springer Nature Switzerland, 2025-11-18); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Coexistence of safety and security: Synchronized redundant system with security enhancements(2018); Scopus© Citations 2 14 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Statistical Study of User Perception of Smart Homes during Vital Signal Monitoring with an Energy-Saving Algorithm(2022); ; ; <jats:p>Sensor networks are deployed in people’s homes to make life easier and more comfortable and secure. They might represent an interesting approach for elderly care as well. This work highlights the benefits of a sensor network implemented in the homes of a group of users between 55 and 75 years old, which encompasses a simple home energy optimization algorithm based on user behavior. We analyze variables related to vital signs to establish users’ comfort and tranquility thresholds. We statistically study the perception of security that users exhibit, differentiating between men and women, examining how it affects the person’s development at home, as well as the reactivity of the sensor algorithm, to optimize its performance. The proposed algorithm is analyzed under certain performance metrics, showing an improvement of 15% over a sensor network under the same conditions. We look at and quantify the usefulness of accurate alerts on each sensor and how it reflects in the users’ perceptions (for men and women separately). This study analyzes a simple, low-cost, and easy-to-implement home-based sensor network optimized with an adaptive energy optimization algorithm to improve the lives of older adults, which is capable of sending alerts of possible accidents or intruders with the highest efficiency.</jats:p>Scopus© Citations 4 47 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, An Energy Model Using Sleeping Algorithms for Wireless Sensor Networks under Proactive and Reactive Protocols: A Performance Evaluation(2020); ; ; Scopus© Citations 19 12 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Channel Characterization and SC-FDM Modulation for PLC in High-Voltage Power Lines(2022); ; <jats:p>Digital communication over power lines is an active field of research and most studies in this field focus on low-voltage (LV) and medium-voltage (MV) power systems. Nevertheless, as power companies are starting to provide communication services and as smart-grid technologies are being incorporated into power networks, high-voltage (HV) power-line communication has become attractive. The main constraint of conventional HV power-line carrier (PLC) systems is their unfeasibility for being migrated to wideband channels, even with a high signal-to-noise ratio (SNR). In this scenario, none of the current linear/non-linear equalizers used in single carrier schemes achieve the complete compensation of the highly dispersive conditions, which limits their operation to 4 kHz channels. In this paper, a new PLC-channel model is introduced for transmission lines incorporating the effects of the coupling equipment. In addition, the use of the single-carrier frequency-division modulation (SC-FDM) is proposed as a solution to operate PLC systems in a wide bandwidth, achieving transmission speeds above those of the conventional PLC system. The results presented in this paper demonstrate the superior performance of the SC-FDM-PLC over conventional PLC systems, obtaining a higher transmission capacity in 10 to 30 times.</jats:p>Scopus© Citations 2 36 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Scopus© Citations 1 42 1 - Some of the metrics are blocked by yourconsent settings
Item type:Patent, Cama semiautomática medidora para esterilización de animalesLa presente invención consiste en una cama semiautomática medidora para esterilización de animales y su proceso de utilización, la cual cuenta con una cama que puede medir el peso y la temperatura de forma automática mediante sensores, arrojando la cantidad exacta de anestesia a utilizar en el proceso de esterilización. Además, cuenta con sensores de oxigenación y ritmo cardiaco para monitorear los signos vitales del animal y reportarlos en una pantalla táctil que cuenta con leds y sonido que se activan como alerta en caso de que estos signos se encuentren cerca de los parámetros – altos o bajo – fijados según la epecie, raza y genero del animal a esterilizar. La cama esta provista de pasos a seguir para su correcta y eficiente utilización, además de estar diseñada como una unidad desplegable para trabajo en campo y ser trasladada fácilmente.26 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Performance of MRC Detection in OFDM System with Virtual Carriers over V2V Channels(2019); ; Scopus© Citations 1 25 2