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Design, implementation and deployment of testbed for LoRa communication architecture on nanosatellite constellations
Author(s)
Rowe, Rezah
Date Issued
2023
Type
Thesis
Publisher
Cape Peninsula University of Technology
Abstract
Long distance RF communication in excess of 20km can be challenging for ground-based
systems due to limits of Line-of-Sight (LoS). This can potentially be mitigated using satellite
based, Long Range (LoRa) networks. With Low Power Wide Area Networks (LPWAN) finding
more popular use paired with the broadening efficacy and connectivity of Internet of Things
(IoT), the technology is creating opportunities for use in a wider array of applications.
The Africa Space Innovation Centre (ASIC) Labs, specializing in Maritime Domain Awareness
(MDA) telemetry from proprietary nanosatellites, sought to determine the feasibility of a LoRa
telecommunication-based nanosatellite constellation. The telecommunication would be
established using proprietary commercial off-the-shelf (COTS) hardware and Software
Defined Radio (SDR) architecture, paired with a terrestrial ground station.
The measurement of feasibility is determined through simulation results of a technology
demonstrator or testbed platform. The results are studied in the form of performance
measurements, that correlate to reliability of the established connection of the LoRa network
infrastructure and the Quality of Service (QoS) of the satellite telemetry.
With results proving favourable, within the constraints of technology and architecture
employed by ASIC, the possible use cases for the platform relative to State of The Art (SoTA)
are to be determined. Viable prototype(s) could be further tested, extending the available
intellectual property and market access of ASIC Labs.
systems due to limits of Line-of-Sight (LoS). This can potentially be mitigated using satellite
based, Long Range (LoRa) networks. With Low Power Wide Area Networks (LPWAN) finding
more popular use paired with the broadening efficacy and connectivity of Internet of Things
(IoT), the technology is creating opportunities for use in a wider array of applications.
The Africa Space Innovation Centre (ASIC) Labs, specializing in Maritime Domain Awareness
(MDA) telemetry from proprietary nanosatellites, sought to determine the feasibility of a LoRa
telecommunication-based nanosatellite constellation. The telecommunication would be
established using proprietary commercial off-the-shelf (COTS) hardware and Software
Defined Radio (SDR) architecture, paired with a terrestrial ground station.
The measurement of feasibility is determined through simulation results of a technology
demonstrator or testbed platform. The results are studied in the form of performance
measurements, that correlate to reliability of the established connection of the LoRa network
infrastructure and the Quality of Service (QoS) of the satellite telemetry.
With results proving favourable, within the constraints of technology and architecture
employed by ASIC, the possible use cases for the platform relative to State of The Art (SoTA)
are to be determined. Viable prototype(s) could be further tested, extending the available
intellectual property and market access of ASIC Labs.
Additional information
Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2023
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