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Journal Article Satellite Clustering for Non-Terrestrial Networks: Concept, Architectures, and Applications
Cited 12 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Dong-Hyun Jung, Gyeongrae Im, Joon-Gyu Ryu, Seungkeun Park, Heejung Yu, Junil Choi
Issue Date
2023-09
Citation
IEEE Vehicular Technology Magazine, v.18, no.3, pp.29-37
ISSN
1556-6072
Publisher
Institute of Electrical and Electronics Engineers
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/MVT.2023.3262360
Abstract
Recently, megaconstellations with a massive number of low Earth orbit (LEO) satellites are being considered as a possible solution for providing global coverage due to relatively low latency and high throughput compared to geosynchronous orbit (GEO) satellites. However, as the number of satellites and operators participating in the LEO constellation increases, inter-satellite interference will become more severe, which may yield marginal improvement or even decrement in network throughput. In this article, we introduce the concept of satellite clusters that can enhance network performance through satellites’ cooperative transmissions. The characteristics, formation types, and transmission schemes for the satellite clusters are highlighted. Simulation results evaluate the impact of clustering from coverage and capacity perspectives, showing that when the number of satellites is large, the performance of clustered networks outperforms the unclustered ones. The viable network architectures of the satellite cluster are proposed based on the 3rd Generation Partnership Project (3GPP) standard. Finally, the future applications of clustered satellite networks are discussed.
KSP Keywords
3rd generation partnership project(3GPP), Cooperative Transmission, Future applications, High throughput(HTP), LEO constellation, Low Latency and High Throughput, Low earth orbit (LEO) satellite, Network Architecture, Network performance, Network throughput, Satellite cluster