移动通信2024，Vol.48Issue(6)：2-12,11.DOI:10.3969/j.issn.1006-1010.20240531-0001
多波束卫星通信系统中的非线性预编码算法研究
Research on Nonlinear Precoding Optimization Algorithm for Multi-Beam Satellite Communication System
摘要
Abstract
The non-terrestrial network(NTN)is an important part of 5G evolution as well as 6G networks,and in order to enhance the satellite capacity and spectral efficiency,phase array-based dense multi-beam and co-frequency deployment have gradually become research hotspots.Due to the severe inter-beam superposition interference caused by the side-lobe power leakage in beamforming with the increase of the number of beams,there is an urgent need for low-complexity multi-user interference cancellation schemes.In this paper,we discuss the application and optimization method of nonlinear precoding in satellite communication systems from the perspective of precoding techniques,and verify the effectiveness and advancement of implementing the scheme in 5G NR baseband links through actual hardware platform tests.关键词
3GPP NTN/多波束卫星/波束间干扰/非线性预编码Key words
non-terrestrial network(NTN)/multi-beam satellites/inter-beam interference/nonlinear precoding分类
电子信息工程引用本文复制引用
王珂,张歆宸,林文亮,邓中亮..多波束卫星通信系统中的非线性预编码算法研究[J].移动通信,2024,48(6):2-12,11.基金项目
科技部重点研发计划项目"6G星地融合网络关键技术验证仿真平台"(2020YFB1808005) （2020YFB1808005）
重庆市自然科学基金创新发展联合基金项目"面向海量用户窄带接入的低轨卫星互联网高谱效多载波波形研究"(CSTB2023NSCQ-LMX0008) （CSTB2023NSCQ-LMX0008）
