High Reliable Uplink Transmission Methods in GEO–LEO Heterogeneous Satellite Network
Li G, Li T, Yue X, Hou T, Dai B (2023)
Publication Type: Journal article
Publication year: 2023
Journal
Book Volume: 13
Article Number: 8611
Journal Issue: 15
DOI: 10.3390/app13158611
Abstract
As a significant component of non-terrestrial networks, satellite communication has gradually evolved into a heterogeneous topology where the network nodes are classified as low Earth orbit (LEO) and geostationary Earth orbit (GEO) nodes. Considering the advantage of low transmission delay of LEO satellites in a heterogeneous network, ground users are arranged to access LEO satellites in the first priority. By fully understanding the equivalent channel gain difference in the beam-edge and beam-center users, we develop non-orthogonal multiple access (NOMA) in an LEO network where different users are allocated in the same resource block. As a complementary strategy, the beam-edge user has the ability to connect the GEO satellite if the LEO links are not available. That is, the two users are served cooperatively by LEO and GEO satellites in an orthogonal manner. In this paper, we provide deep insights for the uplink transmission performance of NOMA and cooperative orthogonal multiple access methods. As a general metric, the analytical expressions of outage probability are derived and the diversity orders are also provided. The simulation results show that NOMA is capable of providing remarkable performance in low signal-to-noise ratio regions and is more promising when the channels are assumed to be ordered.
Involved external institutions
China Electronics Technology Group Corporation (CETC) / 中国电子科技集团公司
China (CN)
Beijing Information Science & Technology University (BISTU) / 北京信息科技大学
China (CN)
Beijing Jiaotong University / 北京交通大学
China (CN)
Nanjing University of Posts and Telecommunications (NUPT) (NJUPT)
China (CN)
China (CN)
Beijing Information Science & Technology University (BISTU) / 北京信息科技大学
China (CN)
Beijing Jiaotong University / 北京交通大学
China (CN)
Nanjing University of Posts and Telecommunications (NUPT) (NJUPT)
China (CN)
How to cite
APA:
Li, G., Li, T., Yue, X., Hou, T., & Dai, B. (2023). High Reliable Uplink Transmission Methods in GEO–LEO Heterogeneous Satellite Network. Applied Sciences, 13(15). https://dx.doi.org/10.3390/app13158611
MLA:
Li, Guoyan, et al. "High Reliable Uplink Transmission Methods in GEO–LEO Heterogeneous Satellite Network." Applied Sciences 13.15 (2023).
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