移动通信2026，Vol.50Issue(3)：40-46,7.DOI:10.3969/j.issn.1006-1010.20251217-0001
基于空间隔离的低轨卫星星座星地协同干扰抑制方法
Spatial-Isolation-Based Interference Suppression for LEO Satellite Constellations with Satellite-Ground Coordination
摘要
Abstract
As an essential component of non-terrestrial networks for 6G,the rapid deployment of satellite communications has exacerbated interference issues in low Earth orbit(LEO)satellite constellations.Existing studies mainly rely on heuristic algorithms or machine learning techniques for interference suppression.However,these approaches often impose high computational burdens on satellites and may lead to over-optimization.To address this challenge,this paper proposes a spatial-isolation-based interference suppression method for LEO satellite constellations with satellite–ground coordination.By exploiting spatial isolation characteristics,the proposed method effectively suppresses inter-satellite interference with significantly reduced computational complexity.Simulation results show that,under different constellation scales,the average computation time of the proposed method is only 0.41%-0.91%of that of genetic-algorithm-based methods and 9.85%-21.28%of that of angle-based spatial isolation methods,while maintaining stable interference suppression performance.In addition,a traffic-distribution-aware adaptive beam-position clustering strategy is introduced to balance beam loads.When user aggregation is high,this strategy significantly improves system throughput,achieving a maximum gain of 67.29%.关键词
低轨卫星/干扰抑制/低复杂度/空间隔离/波束负载均衡Key words
low Earth orbit satellite/interference suppression/low-complexity/spatial isolation/beam load balancing分类
信息技术与安全科学引用本文复制引用
李蓝逸柠,张佳鑫,王文博,蔡承璋,张先超,蒋治国..基于空间隔离的低轨卫星星座星地协同干扰抑制方法[J].移动通信,2026,50(3):40-46,7.基金项目
雄安新区地方科技研究项目"面向智慧创城的空天地多模信息融合和态势生成技术研究"(0101058) （0101058）
全省多模态感知与智能系统重点实验室开放课题资助"面向态势感知的多模态知识图谱构建研究"(MPIS202402) （MPIS202402）
国家重点研发计划资助项目"基于多维时空信息的编址与路由机制"(2022YFB2902501) （2022YFB2902501）
北京邮电大学创新创业扶持计划"辰星-巨星座组网路由半实物仿真平台"(2025-YC-T003) （2025-YC-T003）
