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13 December 2024 Low-orbit communication constellation configuration optimization and beam allocation method for regional periodic transmission missions
Wenbo Gu, Huayi Li, Wentao He
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Proceedings Volume 13492, AOPC 2024: Laser Technology and Applications; 134921K (2024) https://doi.org/10.1117/12.3048265
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China
Abstract
In response to the needs of large-scale periodic data transmission tasks such as unmanned patrol video upload for forest fire prevention, traditional communication satellites are limited by uplink bandwidth and cannot meet their timeliness requirements. However, low-orbit broadband satellites have increasingly obvious application potential in the above scenarios due to their high-speed uplink characteristics. Taking the patrol video data upload of the core forest area of the Greater Khingan Range as an example, it is modeled as a regional time-division coverage problem within a fixed period, and a constellation configuration optimization and beam allocation algorithm based on particle swarm algorithm is proposed. The region is decomposed into many identical cells, and the time window and the number of beams are used as constraints. Considering the satellite power and the interference of adjacent beams, the particle swarm algorithm is used to optimize the constellation multi-beam allocation model. The simulation results show that under the same regional transmission period, the constellation configuration obtained by the proposed optimization algorithm uses fewer satellites, and can reduce the spatial interference of a single satellite beam, optimize beam allocation, effectively reduce mission costs, and improve resource utilization efficiency.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Wenbo Gu, Huayi Li, and Wentao He "Low-orbit communication constellation configuration optimization and beam allocation method for regional periodic transmission missions", Proc. SPIE 13492, AOPC 2024: Laser Technology and Applications, 134921K (13 December 2024); https://doi.org/10.1117/12.3048265
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KEYWORDS
Satellites
Particle swarm optimization
Data transmission
Satellite communications
Mathematical optimization
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