Architecting CubeSat constellations for messaging service, Part I

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dc.contributor.authorOsipova, Ksenia
dc.contributor.authorCamps, Adriano
dc.contributor.authorGolkar, Alessandro
dc.contributor.authorRuiz-de-Azua, Joan A.
dc.contributor.authorFernandez, Lara
dc.contributor.authorGarzaniti, Nicola
dc.date.accessioned2024-08-30T15:16:36Z
dc.date.available2024-08-30T15:16:36Z
dc.date.freetoread2024-08-30
dc.date.issued2024-10-01
dc.date.pubOnline2024-07-26
dc.description.abstractIn today's modern and globalized world, connectivity is a key factor for businesses, production facilities, sensor networks, and ordinary people. However, there are still populated areas which are not covered by ground-based telecommunications infrastructure. This is where telecommunication satellite constellations come in, as they can provide coverage to remote and uninhabited regions and fill existing connectivity gaps to ensure data transfer. LoRa is one of the technologies designed for data transmissions over long distances with low power consumption. Alongside with other technologies of the Low-Power Wide Area Network family, it is widely used for Internet of Things applications. LoRa chirp spread spectrum modulation is robust against the Doppler frequency shifts encountered in low earth orbits, and it has already been used in IoT satellite communications. Due to the low transmitted signal power, the achieved data rate is not high, making it a suitable technology for telecommunications payloads on CubeSat platforms for messaging services. As compared to existing traditional communication satellite systems, CubeSat constellations are low-cost and may offer an affordable connectivity service to developing regions. This study is divided in two parts. In Part I the demand model is built based on the population distribution not covered by cell towers. The LoRa link performance is analyzed, considering the impact of LoRa channel parameters variation, such as spreading factor and channel bandwidth, while satellite orbital height, transmission antenna beamwidth, and transmitter peak power have a direct impact on the payload mass. Among thousands of possible configurations, 73 feasible payload designs have been downselected. In Part II of the study, the satellite mass and the total system cost are estimated based on the payload parameters obtained. Messages transmission simulation via a constellation is conducted in order to identify optimal constellation architectures for messaging service, as well as the main drivers of the system economic profitability. The presented analysis results provide a deeper understanding of LoRa connectivity advantages and limitations together with the performance drivers, which will support the optimization of future LoRa-based satellite communication systems and other IoT satellite constellations.
dc.description.journalNameActa Astronautica
dc.description.sponsorshipEuropean Commission, Government of Catalonia
dc.description.sponsorshipThis has been supported by the predoctoral program AGAUR-FI ajuts (2023 FI-1 00477) Joan Oró of the Secretariat of Universities and Research of the Department of Research and Universities of the Generalitat of Catalonia and the European Social Plus Fund.
dc.description.sponsorshipThis project was also sponsored in part by the project “GENESIS: GNSS Environmental and Societal Missions – Subproject UPC”, Grant PID2021-126436OB-C21, sponsored by MCIN/AEI/10.13039/ 501100011033/ and EU ERDF “A way to do Europe”.
dc.description.sponsorshipThis study would also not have been possible without the support of the Skolkovo Institute of Science and Technology, whose funding enabled the international collaboration through its Academic Mobility program.
dc.format.extentpp. 525-539
dc.identifier.citationOsipova K, Camps A, Golkar A, et al., (2024) Architecting CubeSat constellations for messaging service, Part I. Acta Astronautica, Volume 223, October 2024, pp. 525-539
dc.identifier.eissn1879-2030
dc.identifier.elementsID548527
dc.identifier.issn0094-5765
dc.identifier.urihttps://doi.org/10.1016/j.actaastro.2024.07.022
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22836
dc.identifier.volumeNo223
dc.languageEnglish
dc.language.isoen
dc.publisherElsevier BV
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectLoRa technology
dc.subjectMessaging service
dc.subjectSatellite communications
dc.subjectInternet of Things
dc.subject40 Engineering
dc.subject4001 Aerospace Engineering
dc.subjectAerospace & Aeronautics
dc.subject4001 Aerospace engineering
dc.titleArchitecting CubeSat constellations for messaging service, Part I
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2024-07-11

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