Literature Database Entry


Nils Einfeldt, "Design of a Low-Cost Software-Defined Radio System Based on Waveform Emulation," Bachelor Thesis, School of Electrical Engineering and Computer Science (EECS), TU Berlin (TUB), November 2022. (Advisor: Anatolij Zubow; Referees: Falko Dressler and Thomas Sikora)


With the growing popularity of Internet of Things (IoT) devices, numerous new wireless low power wide area network (LPWAN) technologies have been created to cater the demands of IoT. To communicate with LPWAN devices, special hardware is necessary, which is still costly and add complexity. Cross-technology communication (CTC) allows heterogeneous wireless technologies to directly exchange data in the same frequency band, and thus reduces cost by reducing the number of devices required to communicate with these LPWANs. Therefore, in this thesis, I investigate the feasibility to develop a generic CTC system that can use off-the-shelf wireless local area network (WLAN) hardware as a transmitter for narrowband waveforms by emulating LPWAN technologies without modification of hardware, firmware or drivers only by payload selection. This in essence turns a WLAN card into a low-cost software-defined radio transmitter. My proposed approach was tested in MATLAB simulations and using a USRP software defined radio (SDR) and showed promising results. The use of commercially available WLAN hardware is not yet possible because under the given premises, not to change hardware, firmware, nor driver, it is not possible to fix the scrambling-seed of the WLAN chip. However, with modification of the driver this will be possible in the future.

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Nils Einfeldt

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    author = {Einfeldt, Nils},
    title = {{Design of a Low-Cost Software-Defined Radio System Based on Waveform Emulation}},
    advisor = {Zubow, Anatolij},
    institution = {School of Electrical Engineering and Computer Science (EECS)},
    location = {Berlin, Germany},
    month = {11},
    referee = {Dressler, Falko and Sikora, Thomas},
    school = {TU Berlin (TUB)},
    type = {Bachelor Thesis},
    year = {2022},

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