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Efficient Security Of Modern Low-Power Wireless
Communication Technologies
Blažek, Vojtěch
This thesis deals with communication security in Sigfox networks. That includes studying the network’s parameters and capabilities and then analysing the appropriate cryptosystems. The thesis contains a description of cryptography as such and a description of cryptosystems that could be implemented in end devices. From the selected cryptosystems, three of the most appropriate are selected based on the required properties, which are put into practice on the Arduino-based development kit and then experimental measurements are made to determine the basic features of the device.
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Secure Communication In Modern Radio Networks
Frei, Martin
The goal of this research is to create fast, secure and low energy E2E encryption that would supplement the absence of such cryptosystem in the currently expanding Sigfox network and, at the same time, utilize the already existing network security as best as possible.
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Wireless Sensory Network Using LoRa Technology
Mikulášek, Michal ; Pokorný, Jiří (referee) ; Škorpil, Vladislav (advisor)
The bachelor thesis focuses in the first half on the Internet of Things and the available wireless technologies for the Internet of Things. Each technology is characterized by its features, pros and cons, as well as the possibilities of using it in the Internet of Things. In the second half of the thesis, a practical design and construction of a LoRa network, consisting of a sensory and a central unit, is carried out. The parts of the solution are designed wiring schemes, printed circuit boards and detailed photo documentation. Additionaly the software solutions for both types of units are described, with detailed descriptions of the proposed features. The maximum possible range is tested and documented for the entire solution. Subsequently, a detailed measurement of the power consumption of the sensor unit is carried out and an extensive estimation of its battery life for a selected battery.
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IoT Control Module
Haman, Martin ; Marcoň, Petr (referee) ; Szabó, Zoltán (advisor)
This bachelor thesis deals with the research of the possibilities of wireless data transmission from the controllers IoT modules and their construction. At first there is compared wireless technologies, network protocols, their suitability depending on the application of the IoT control module. Then it is designed the IoT control module using a Wi-Fi module (based on Espressif ESP8266 integrated circuit) communicating over a MQTT network protocol. Thesis continue with selection, compilation of the firmware, creation of script for control heating system, descriptions of methods for controlling the IoT control module and display of measured data. The possibilities of creating a MQTT broker and security of data transmission are described below. In conclusion is documented and verified its functionality.
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Efficient security of modern low-power wireless communication technologies
Blažek, Vojtěch ; Malina, Lukáš (referee) ; Fujdiak, Radek (advisor)
This thesis deals with communication security in Sigfox networks. That includes studying the network’s parameters and capabilities and then analysing the appropriate cryptosystems. The thesis contains a description of cryptography as such and a description of cryptosystems that could be implemented in end devices. From the selected cryptosystems, three of the most appropriate are selected based on the required properties, which are put into practice on the Arduino-based development kit and then experimental measurements are made to determine the basic features of the device.
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Analysis of the current state of Internet of things wireless network's and it's future development
Hájek, Daniel ; Luc, Ladislav (advisor) ; Veber, Jaromír (referee)
This thesis aims to introduce a phenomenon called the Internet of things (IoT) and its wireless networks, it brings short overview about the topic and it's history. In the next part of the thesis, there is presented a list of currently used wireless networks and they are compared to specialized networks developed for the Internet of things. This part also contains a short analysis of the Internet of things' current network's coverage, the analysis focuses on the countries which are the world's leaders in technology development. These countries are also compared with the Czech Republic. In the practical part of the thesis is introduced a vision of ideal smart house. Afterwards, a project of implementation of smart devices is presented. This project aims at reaching the same attributes as the presented vision. The main part of the project is dedicated to designing a wireless network using the Zigbee standard.
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Wireless sensor based on LoRa technology
Pospíšil, Jan ; Krajsa, Ondřej (referee) ; Troják, David (advisor)
The bachelor thesis in theoretical part is focused on wireless technologies used for home control and automation devices where low power consumption is required. There are mentioned possibilities of each technology, energy requirements, range and throughput. The result of practical part is design and construction of a wireless temperature sensor which uses LoRa technology to communicate with a gateway and is also capable to last on battery for years. Additional feature is user possibility to use GPIO pins in form of relays. The task also covers design and construction of a gateway which listens for LoRa packets and communicates with PHP application on server side. Last step of practical part is focused on design of PHP application, which is responsible for visualization of received data.
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