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Maximilian W. Gotthardt, "Evaluation of protocols for control stage lighting," Bachelor Thesis, School of Electrical Engineering and Computer Science (EECS), TU Berlin (TUB), March 2022. (Advisor: Anatolij Zubow; Referees: Falko Dressler and Thomas Sikora)


In the field of lighting and stage technology, the challenge of controlling the individual installations quickly and without complications is a recurring one. Established solutions are realized via cables ensuring no interference, while wireless solutions are more flexible. Crowded events such as concerts may cause interference in the radio channel, resulting in a drop in reliability. While controlling many nodes with only small payloads, the overhead is significant. This thesis targets the problem of efficient and reliable wireless control of light installations by proposing a low-overhead data link layer solution on top of IEEE 802.11 physical layer supporting both reliable unicast and broadcast operations. The latter is scalable which is important in case a large group of nodes needs to be controlled. The proposed protocols were analyzed analytically as well as by means of experiments in a small indoor testbed using the ESP-NOW protocol. Results reveal that the proposed approaches are able to outperform state-of-the-art solutions (i.e., ARTNet over TCP/UDP and Wi-Fi stack) through the use of flatter protocol stacks and efficient broadcasts. By applying unsolicited delayed repetitions in the application layer the success ratio can be raised to over 99%, even with weak connections. Moreover, it enables time synchronized operation on a set of nodes, e.g., for the purpose of time controlled configuration of lighting, which is not performed with state-of-the-art wireless solutions.

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Maximilian W. Gotthardt

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    author = {Gotthardt, Maximilian W.},
    title = {{Evaluation of protocols for control stage lighting}},
    advisor = {Zubow, Anatolij},
    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 = {2022},

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