Research Article
Research on Beam Interference Optimization Strategy of LEO Constellation
@INPROCEEDINGS{10.1007/978-3-030-93398-2_12, author={Huajian Zhang and Bo Yang and Chao Xi and Xiao Yang and Jiangyan Hu and Jirong Wang and Xueyuan Qiao and Chuanguang Fu}, title={Research on Beam Interference Optimization Strategy of LEO Constellation}, proceedings={Wireless and Satellite Systems. 12th EAI International Conference, WiSATS 2021, Virtual Event, China, July 31 -- August 2, 2021, Proceedings}, proceedings_a={WISATS}, year={2022}, month={1}, keywords={LEO constellation Interference Beam on/off Optimization strategy}, doi={10.1007/978-3-030-93398-2_12} }- Huajian Zhang
Bo Yang
Chao Xi
Xiao Yang
Jiangyan Hu
Jirong Wang
Xueyuan Qiao
Chuanguang Fu
Year: 2022
Research on Beam Interference Optimization Strategy of LEO Constellation
WISATS
Springer
DOI: 10.1007/978-3-030-93398-2_12
Abstract
The LEO constellation is a near earth polar orbit satellite constellation, which will cause a large number of beam overlap in the high latitude during the motion, and frequency multiplexing is usually used in LEO constellation to improve the efficiency of system resource use. All these factors will cause the interference between beams. The frequency interference of the whole constellation can be reduced to a large extent by closing the beam strategy of partial overlapping points, but due to the high speed movement of the satellite beams, it is still unable to guarantee the full period of the whole constellation without interference or interference below the threshold value. The dynamic adjustment strategy of the beam resource designed in this paper is based on the periodic closing strategy, using the sub-band division and frequency dynamic allocation technology, so as to better realize the global beam frequency resource allocation and interference optimization.
