Maestría en Telecomunicaciones

Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/32901

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    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 Diego
    Smart 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.
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    Optimización de antenas para sistemas de captación de energía electromagnética
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Reinoso Soria, Felix Saúl; Gordón Gallegos, Carlos Diego
    The present work shows the design and manufacture of two frequency independent antennas, compact, in microstrip technology, low cost and operating within a very wide frequency range for electromagnetic energy harvesting applications, which were optimized with the With the help of the CST software and manufactured on FR4, the operating frequencies are established mainly within the range of the spectrum where the different cellular operators have been concessioned for 2G, 3G, 4G LTE technology in Ecuador, and even WIFI, which is currently the most widely used band , with very wide bandwidths, which allows the efective collection of electromagnetic energy for frequencies of greater presence and more used in the Ecuadorian territory.
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    Prototipo de Red de Transmisión de Datos mediante la utilización de LIFI (Light Fidelity)
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Reinoso Soria, Lizbeth Aracelly; Gordón Gallegos, Carlos Diego
    In recent years the field of optical communications has evolved to optimize network performance. Due to the demand of users for having high quality services, faster and better applications, the need arises to develop new high capacity and secure networks. The LIFI technology study facilitates the development and implementation of the data transmission network prototype in the offices of Construction Company Telmo Mayorga that allows data to be transmitted at the same time and illuminates the room using visible light. The project brings together investigations of concepts that are related to wireless communication without the use of electromagnetic waves for data transmission and obtaining results through the analysis of the developed prototype. It should be noted that the data transmission speed depends on the electrical installations and the programming in the equipment. What's more; as every network needs a security in the transmission of data, the same that was provided by the MQTT protocol showing that who is subscribed is who can receive the message.
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    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 Diego
    The 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 CPE
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    Simulación de Aplicaciones con series trigonométricas de Fourier en sistemas de comunicaciones electrónicas
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Telecomunicaciones, 2021) Rodríguez Ortiz, Alex Francisco; Gordón Gallegos, Carlos Diego
    In the first scenario, the objective was to develop an application that would graph Fourier Trigonometric Series of continuous functions and represent graphical functions with a high degree of fidelity without the need for the Internet to execute the necessary processes. This application was developed and implemented in Python with the SymPy and numpy libraries to use computer calculation. The results displayed by the application are based on fidelity with the theoretical development. In the second current scenario, there has been an immense advance in the field of wireless communications in this world of modern engineering. Today's softwaredefined radio (SDR) technology is an undisputed emerging technology and presents new challenges for communications engineers. The advancement of the SDR system has made significant progress in recent years, making it a substitute for traditional hardware radio architectures where mathematical procedures are required to decode and process radio signals using analog circuitry. Recently, computers have turned out to be powerful enough to do the required mathematical calculations using software. Therefore, the aim of this research project is to demonstrate that an RTL-SDR-based spectrum analyzer can be used competently as an alternative to the existing hardware spectrum analyzer. This approach will reduce the complexity of the analog hardware system with the greater manageability of software-based filtering and demodulation techniques. As RTL-SDR devices are relatively inexpensive (approximately $ 30) and small in size, this system also offers cost-effectiveness with the provision of portability. An experimental study was carried out with the appropriate conditions to examine the viability and efficiency of the proposed system. Basically this research project presents the implementation, testing of an application for the simulation of Fourier Trigonometric Series and a low-cost software-defined radio based on the Raspberry Pi4 computer, the RTL-SDR radio receiver and the GNU software. Radio. Key issues related to installing and configuring the GNU radio and RTL-SDR drivers on the Raspberry Pi OS are covered. The resulting prototype can demodulate AM and FM signals in the 30MHz to 1.7GHz frequency range and can also fulfill the role of Spectrum Analyzer in demanding applications of moderate sensitivity.
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    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 Diego
    The 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.