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Alexander Mauren, "Simulation of a Hybrid Sensor Network," Bachelor Thesis, School of Electrical Engineering and Computer Science (EECS), TU Berlin (TUB), September 2021. (Advisors: Johannes Blobel and Andreas Fischer; Referees: Falko Dressler and Thomas Sikora)


In a hybrid sensor network the data transfer is carried out by at least two different connecting technolgies. For the network to be simulated, these will be CAN FD (wired) and IEEE 802.15.4 (wireless). Through the continous improvement of wireless technologies they become more diverse in their characteristics and applications. The IEEE 802.15.4 standard offers a great flexibility when it comes to topologies and self-organsation. The low power consumption also fits into the requirement profile very well, even though it is payed with a comparetively low data rate. CAN FD, however, has a fixed line topology but offers a higher data rate compared to IEEE 802.15.4 (5 Mbit vs. 250 kbit) and does not include any routing algorithms by default since all devices feed the same line (in a single line application). Now, the question arises when it does make sense to combine these to technologies? In the given environment is an office building, where wireless traffic within the 2.4 GHz band is supposed to be limited to Wireless Local Area Network (WLAN) in order to avoid any mutual interferences. Another issue: very thick walls which could cause weak signals in case the radio power can not be increased. So for the inside of the building CAN FD is the more suitable solution, especially if the corresponding cables are already installed. The sensor network must also capture data outiside of the building (garden, fence e.g). For that, the used sensor boards shall be movable which clearly speaks for wireless solution / IEEE 802.15.4. The thesis aims to reveal limits of the CAN FD / IEEE 802.15.4 combination, such as network size and latencies bound to a certain topologie with software simulations. For the simulation of such a network, the software Objective Modular Network Test bed in C++ (OMNeT++) is used in combination with appropriate simulation models for each technology. The results should reveal occuring bottlenecks and serve as a basis for a hardware implementation.

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Alexander Mauren

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    author = {Mauren, Alexander},
    title = {{Simulation of a Hybrid Sensor Network}},
    advisor = {Blobel, Johannes and Fischer, Andreas},
    institution = {School of Electrical Engineering and Computer Science (EECS)},
    location = {Berlin, Germany},
    month = {9},
    referee = {Dressler, Falko and Sikora, Thomas},
    school = {TU Berlin (TUB)},
    type = {Bachelor Thesis},
    year = {2021},

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