Maestría en Telecomunicaciones
Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/32901
Browse
25 results
Search Results
Item Sistema de detección de intrusos (IDS) en redes informáticas aplicando protocolos de ciberseguridad.(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas Electrónica e Industrial. Carrera de Telecomunicaciones., 2026-07-09) Vaca Tonato, Kevin Jhonatan; Miniguano Miniguano, Livio Danilo; Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas Electrónica e Industrial. Carrera de Telecomunicaciones.This research focused on the design, implementation, and validation of a Host-based Intrusion Detection System (HIDS) using the open-source software Wazuh, aiming to strengthen cybersecurity on an application server running Moodle configured over Ubuntu. The methodology followed a quantitative and experimental approach within a controlled virtualized environment. To ensure system compatibility, a pre-operational version was installed, the ossec.conf file was modified, and system permissions were configured to guarantee full visibility over audit logs and kernel security modules, such as AppArmor. Attack simulations were executed from a Kali Linux virtual machine. In the first scenario, SSH authentication was evaluated using the Hydra tool; the system captured network packets in the auth.log file, demonstrating failed access attempts and displaying customized alerts on the main dashboard. In the second scenario, Denial of Service (DoS) attacks were conducted via TCP flooding. Tests showed that massive attacks disabled the host before it could report to the IDS. To mitigate this, a logical programming script was implemented to directly monitor the state of kernel sockets (netstat) and web server errors from an alternative virtual machine, successfully registering and detecting the DoS on time. Finally, an Active Response was executed, which isolated the attacking machine through a customized script responsible for shutting down the network interface, successfully mitigating the denial of service.Item Propuesta tecnológica para la conectividad inteligente en el sector florícola mediante soluciones de redes de comunicación para monitoreo remoto en zonas rurales para la empresa Artil Robotics.(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas Electrónica e Industrial. Carrera de Telecomunicaciones, 2026-06-29) Nuñez Aguiar Ibeth Raquel; Guamán Molina, Jesús Israel; Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas Electrónica e Industrial. Carrera de TelecomunicacionesThis study developed a smart connectivity technological proposal for the rural floriculture sector, aimed at the remote monitoring of agro-productive variables through the design and evaluation of communication alternatives. To this end, the process began with an analysis of operational and user requirements, referencing the ISO/IEC/IEEE 29148 standard and utilizing Reqview to maintain traceability among needs, evaluation criteria, and technology selection. Based on this process, Point-to- Multipoint (PtMP) wireless networks and Gigabit Passive Optical Networks (GPON) were identified as viable alternatives. The proposed architectures were structured with a primary node and five secondary nodes to provide connectivity to greenhouses, monitoring robots, wireless Access points, and other network equipment. Physical design, node distribution, and coverage analysis were conducted using AutoCAD, Google Earth, Radio Mobile, and UISP Design. The wireless alternative was evaluated by considering coverage, signal strength, transmission capacity, and propagation conditions. The GPON network was simulated in OptiSystem to analyze optical signal behavior and verify the operation of the proposed links. Finally, a techno-economic analysis was conducted by evaluating investment, operational, maintenance, and capital recovery costs. The results established that both proposals are technically and economically feasible for remote floricultural monitoring. The wireless network presents greater flexibility and a lower initial investment, whereas the fiber optic network offers superior stability, higher capacity, and greater scalability.Item Seguridad y vulnerabilidades de dispositivos IOT LORAWAN frente a interferencias y ataques de radiofrecuencia con FLIPPER ZERO(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas Electrónica e Industrial. Carrera de Telecomunicaciones, 2026-01) Gómez Soxo, Odalys Valeria; Robalino Peña, Edgar Freddy; Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas Electrónica e Industrial. Carrera de TelecomunicacionesThis thesis conducts a comprehensive analysis of security in an IoT environment using LoRa and LoRaWAN technology, applied to a real system consisting of IoT nodes, a LoRaWAN gateway, and a backend infrastructure developed with ChirpStack. The analysis seeks to detect vulnerabilities related to cryptographic management, access control, wireless communication, and interface exposure, taking into account the threats inherent in LPWAN networks and the guidelines established by OWASP IoT Top 10. The methodology used consists of four stages: designing and implementing a controlled test environment, which includes setting up a LoRaWAN server on a Linux virtual machine, integrating nodes, and configuring an operational gateway; conducting communication tests, validating RF parameters, and functionally analyzing the IoT system; employing methods to evaluate security using techniques such as sniffing, replay, interference, and passive analysis with Flipper Zero and SDR equipment; classifying the risk and devising measures to mitigate it based on telecommunications standards and engineering best practices. The findings show that there are serious vulnerabilities in unencrypted LoRa links, that LoRaWAN metadata is exposed, that there are fingerprinting risks, weaknesses in key management, and susceptibility to RF attacks such as replay and jamming. Based on these findings, a technical mitigation guide is developed with the aim of strengthening the confidentiality, integrity, and availability of the IoT system. To this end, suggestions are made regarding encryption, authentication, physical control, firmware hardening, and spectrum monitoring. This study helps to understand and strengthen security in Internet of Things solutions based on LPWAN technologies.Item Sistema de estimación de producción de cultivo de mora empleando visión artificial y machine learning(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Telecomunicaciones, 2025-02) Aldaz Saca Fabricio Javier; Ibarra Rojano Gilber Andrés; Córdova Córdova Edgar PatricioBlackberry cultivation is a significant sector of the national economy due to its high demand at both local and international levels. However, growers face considerable challenges in attempting to accurately predict production. Conventional methods, which rely heavily on manual procedures, are often inaccurate and prone to human error, potentially compromising planning and resulting in economic losses. The system developed in this research is composed of four fundamental stages: acquisition, processing, training, and analysis. For data collection, a DJI Mini 2 unmanned aerial vehicle (UAV) was utilized, capable of capturing real-time images of the crops. During processing, these images were analyzed using computer vision techniques, employing tools such as OpenCV and the YOLOv8m detection model. The model was trained with a specific dataset that included photographs of blackberries at different stages of maturity: green, red, and purple. To project potential losses due to factors such as pests, adverse weather, and drought, a Monte Carlo-based simulation was integrated. The results were presented in a graphical interface designed to facilitate visualization and analysis, assisting growers in optimizing their decision-making. The system exhibited 80.55% reliability in blackberry identification and counting, with data captured directly in the field. Furthermore, the simulations yielded a comprehensive evaluation of potential adverse scenarios, enabling more precise and realistic estimates.Item Sistema de captación de energía electromagnética para abastecimiento de energía en dispositivos móviles(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Criollo Paredes, Walter Iván; Gordón Gallegos, Carlos DiegoThe constant growth of energy demand and its future vision of energy supply in many areas of science, engineering and technology, especially in mobile devices,makeenvironmentally friendly and environmentally friendly electromagnetic energy harvesting a high demand alternative in energy generation.They make environmentally friendly and environmentally friendly electromagnetic energy harvesting a high demand alternative in power generation.Therefore, the present work focuses on the development, design, simulation of two Microstrip antennas for electromagnetic energy harvesting systems. The first, is the Hybrid Resonator Planar Structure Antenna (HR-PSA) that operates at a specific frequency of 900MHz, while the other is an Archimedean Spiral Multiband Antenna (ASMA) that works in a frequency range of 1 to 3 GHz, both were developed for energy harvesting systems.Item Sistema de monitoreo de salud estructural (SHM) de puentes de hormigon mediante redes WSN(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) López Naranjo, Saúl Gabriel; Salazar Escobar, Fabián RodrigoThis project designs a structural health monitoring system (SHM Structural Health Monitoring), based on WSN networks to control the integrity, safety and performance of the structure of a concrete bridge through the deployment of several sensors, responsible for constantly recording the vibrations caused by vehicular flow, pedestrian or due to unpredictable events caused by nature, such as earthquakes, high winds etc.. This wireless sensor network has a dynamic architecture, consisting of several stages, first there are the sensors also known as nodes which are located at the most critical points of the structure, the same that are responsible for recording the vibrations during time intervals. Subsequently, the information obtained is transmitted by radiofrequency signals to the central node or Gateway, which is in charge of collecting the information received from the nodes and sharing it with a computer located at the base station. As a result of the monitoring, a strong correlation was found between the length of the bridge and its respective vibration periods, regardless of the thickness of the concrete structure of the bridge. With this research, a baseline or reference line on the behavior of this type of bridges was established, so that in the future there will be a continuous follow-up and updating of the recorded information, with the intention of predicting failures and damages caused either by the vehicular or human flow or due to the environmental forces to which the bridge is exposed.Item Arrays de Antenas Inteligentes para la Captación Óptima de Energía Electromagnética(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Escobar Suárez, Ernesto Guillermo; Gordón Gallegos, Carlos DiegoSmart antennas are currently one of the most exploited fields in terms of wireless networks, allowing high data transmission capacities, this is achieved by focusing the radiation in the desired direction and adjusting to the environment and conditions in which communications are developed. Smart antennas employ a set of radiating and emitting and combining elements organized in the form of arrangements connected at a common point to guarantee the required power, the signals from these elements are combined to form a moving beam pattern that follows a pattern determined by the user or designer. The biggest challenge to apply smart antenna systems within the Electromagnetic energy harvesting in wireless communications is the ability of high frequency antennas to capture an adequate power level for energy harvesting and storage, therefore, a Great bandwidth to take advantage of various wavelengths present in the environment, such as 3G and WIFI frequencies (2.4 GHz). The consumption of energy within communication systems is considered a big problem and a challenge when carrying out implementations in media where the storage or recharging of the end terminals is complicated by their location, this trend grows with the presence of the Internet of the IoT things, where it is directly dependent on the construction of a large wireless network that allows everything to be interconnected, for this reason there are investigations in the 2.4 and 5.8 GHz bands and represents future work for the 5th Generation (5G) cell phone. The great possibility of collecting electromagnetic energy from densely populated urban areas becomes a great renewable source of power for communication devices for both existing Wi-Fi technology and new technologies such as the 5G network.Item Red de Transmisión de Datos a través de las Redes Eléctricas utilizando tecnología PLC (Power Line Communication)(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Terán Espinosa, Diego Jacinto; Gordón Gallegos, Carlos DiegoThe purpose of research project is the implementation of a data transmission network through electrical networks using PLC (Power Line Communications) technology in the Mayorga Puerres Building. For which an investigation was carried out prior to the studies carried out by other researchers about this technology, as well as the evolution that it has had in the field of communications for the optimization of resources already installed in the infrastructures of buildings or industries to facilitate high-quality connectivity and security in the protection of data and services to be transmitted over this network. An analysis of the existing electrical network in the building is developed to have a dedicated link that allows to apply this technology within the offices and departments that are within the Mayorga Puerres Building and through the implementation of PLC equipment to have access to the services of a data network that provides internet, telephony and data services using installed power outlets. An analysis of several PLC technology equipment is also carried out in order to choose a device that is capable of providing you with the ease of expanding the network in the future as well as updating them without having to invest high costs and also have a correct performance of the proposed network. The analysis of the results tries to explain the physical connection between computers and PLC equipment, located in such a way that the injected signal achieves connectivity throughout the building's electrical system. In addition, the possible effects that it may have on power quality are analyzed, verifying that the equipment with PLC technology comply with the regulations of electrical network parameters, thus having a minimum impact on the other equipment that is connected to the network, without affecting the quality of the transmission between the different points and to be able to make an assessment that this network is safe against possible intrusions, by having its own hardware implemented within the equipment for better security through the 3DES protocol that provides encryption between GATEGAY equipment and CPEItem Plataforma de seguridad perimetral para un ISP (proveedor de servicios de internet)(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Yacchirema Lumbi, Gladys Cristina; Guevara Aulestia, David OmarToday computer security plays an important role in all sectors of society starting with government agencies, educational institutions, financial institutions, health centers and of course companies; the commitment and responsibility of each of them is to safeguard their data and information of people which leads to use platforms to efficiently manage the threats that try to breach the security of a network. This research project aims to implement a perimeter security platform for the company Simantec, due to the business line of the company and the flow of information it handles, a perimeter security system covers the needs and requirements demanded by this entity, being the highest priority the protection of all data considered the most important asset of the entity. The implementation of a proprietary UTM (Unified Threat Manager) at the boundary of the Internet and LAN will mitigate the threats to which the data is exposed, functions such as antivirus, anti-spyware, anti-spam, network firewall, intrusion prevention and detection, and content filtering will maximize the security of the information. In addition, the creation of VPN to access the internal network from anywhere and access the company's services will increase security. At the same time, another defense equipment will be configured, a software UTM with the same functions of the proprietary UTM. The objective is to compare the two threat managers, analyze the advantages and disadvantages of each one in order to choose the best option considering cost/benefit, features, performance, security and above all profitability. Finally, we propose the development of a plan of good security practices, with the aim that employees incorporate as a habit certain methods to prevent attacks carried out through malicious activities by third persons.Item Sistema de comunicación y transmisión de video en tiempo real a través de drones a larga distancia(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Moreta Changoluiza, Janneth Elizabeth; Moreno Avilés, Hugo OswaldoOne of the major technological trends worldwide is the development and use of Unmanned Aerial Vehicles (UAV) civil and military fields. Nowadays, video transmission has become a trend, and as technology advances, the human being demands more sophisticated technological tools. In this case we are looking at better quality real-time video transmission which increases even more with the help of a drone allowing the user to have an overview of areas difficult to access. This article shows the design and implementation of a wireless communications system which allows transmission of video in real time (Streaming) from the DJI Matrice 600 Pro industrial drone in flight controlled from a ground base station. Software with SDR (Software Defined Radio) technology was used for this project, which has helped complete several stages of the system. With the exception of elements such as antennas or amplifiers, all of the blocks have been implemented normally. On the other hand, the use of hardware was minimized to the use of a computer with LabVIEW, USRPs, a drone, a camera and the antennas. For the verification of the results, the respective tests were carried out in a lab.
- «
- 1 (current)
- 2
- 3
- »