Literature Database Entry

boehm2024analysis

Stefan William Böhm, "Analysis of environmental influence on WiFi FTM with ESP32 hardware," Bachelor Thesis, School of Electrical Engineering and Computer Science (EECS), TU Berlin (TUB), March 2024. (Advisor: Sascha Rösler; Referees: Falko Dressler and Thomas Sikora)

Abstract

One of the reasons for my bachelor thesis is that the IEEE has developed a new method of device localization. It turned out that for some devices the error was high [1]. Here I concentrate on the devices that are standardized and are therefore easier to replicate, such as the ESP32-S2. My bachelor thesis is aimed at addressing the problem that there are still no large-scale measurements in various environments, including everyday environments, which can lead to a lack of awareness of certain influences. For this the distance measurement of two devices will be carried out via FTM, which can be representative for a localization by several devices.[2] With them a measurement campaign at different locations at the TU-Berlin, for example at the HFT building, at a glass wall of the glassfoyer, in a corridor, and in a combination of rooms and outside with different floor types, will be carried out to investigate on this problem. Different methods are tested for their influence, including the approach of walls, small-step movements in distance, to a wall and in height, the rotation and deformation of antennas, various attenuation elements such as doors and walls, tests in a coaxial environment, and the reliability of the device through hardware replacement. It turned out that very precise measurements were required as the system showed large differences in small-scale measurements. Especially in the corridor with a bigger sensitivity and error than in the more opened foyer. Antenna deformations and their rotations also showed larger deviations from each other, which was probably due to the sensitive environment of the corridor. The coax environment showed more precise and the most accurate results. With this data, the weaknesses and uncertainties of an ESP32-based localization system can be found and corrected. At the same time, the results can give the research new questions to deepen certain aspects of my bachelor thesis, such as simulating the multipath effect so that it resembles the results of my practical measurements to get more accurate insights into individual signals an their behavior.

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Stefan William Böhm

BibTeX reference

@phdthesis{boehm2024analysis,
    author = {B{\"{o}}hm, Stefan William},
    title = {{Analysis of environmental influence on WiFi FTM with ESP32 hardware}},
    advisor = {R{\"{o}}sler, Sascha},
    institution = {School of Electrical Engineering and Computer Science (EECS)},
    location = {Berlin, Germany},
    month = {3},
    referee = {Dressler, Falko and Sikora, Thomas},
    school = {TU Berlin (TUB)},
    type = {Bachelor Thesis},
    year = {2024},
   }
   
   

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Last modified: 2024-05-04