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卫星通信中基于流量均衡的跳波束分簇构型研究

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星上资源有限且珍贵,而在真实的通信场景中,地面终端用户地理位置分布和卫星通信业务需求各不相同,因此需要进行动态星上资源管理,并设计灵活高效的资源管理方案.本文利用跳波束技术提供波束级别灵活的资源管理,解决高通量卫星产生的点波束覆盖地面小区之间业务需求量不均衡的问题.首先,针对跳波束卫星存在共信道干扰的问题,提出了基于频率模式切换的跳波束簇间干扰避免策略;然后,提出均匀分簇和非均匀分簇两种分簇构型策略,针对均匀分簇均衡效果差、不适用于地面动态变化的问题和共信道干扰问题,提出了基于频率模式切换的跳波束簇间干扰避免策略的非均匀分簇构型方案;最后,对干扰避免策略进行仿真,同时基于多种智能优化算法对不同的分簇策略进行验证,证明所提分簇构型的可行性,并表明无距离限制的非均匀分簇算法的流量均衡能力较传统分簇算法更强.
Research on Beam-hopping Clustering Configuration Based on Traffic Equalization in Satellite Communication
Satellite resources on board are limited and precious,and ground terminals in real communication scenarios have dif-ferent geographic distribution and satellite communication service demands,so dynamic on board satellite resource management is needed to design flexible and efficient resource management schemes.In this paper,the use of hopping beam technology can provide flexible resource management at the beam level to solve the problem of unbalanced service demand between ground cells covered by point beams generated by high-throughput satellites.Firstly,in order to solve the problem of co-channel interference in beam-hopping satellites,an interference avoidance strategy between beam-hopping clusters based on frequency mode switching is pro-posed.Further,two cluster configuration strategies,uniform and non-uniform clustering,are proposed.In order to solve the problem of poor equalization effect of uniform clustering and unsuitable for the dynamic change of the ground,combined with the problem of co-channel interference,a non-uniform cluster configuration strategy based on frequency mode switching is proposed for the interfer-ence avoidance strategy between beam-hopping clusters.Finally,the interference avoidance strategy is verified and simulated.Be-sides,the different clustering strategies are verified based on various intelligent optimization algorithms.The simulation results verify the feasibility of the clustered configuration and show that the non-uniform clustering algorithm with no distance limitation has the strongest flow-balancing ability.

Beam-hopping satelliteCo-channel interferenceUniform clusteringNon-uniform clusteringTraffic balancing

樊晔、姚如贵、刘相驿、李童、张悦颖、刘植、左晓亚

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西北工业大学深圳研究院 深圳 518057

西北工业大学电子信息学院 西安 710072

跳波束卫星 共信道干扰 均匀分簇 非均匀分簇 流量均衡

广东省基础与应用基础研究基金项目空间微波通信全国重点实验室基金项目中央高校基本科研业务费中央高校基本科研业务费陕西省自然科学基础研究计划资助项目智能博弈重点实验室创新工作站开放课题

2021A1515110077HTKI2024KL504010G2024WD0159D50002106922023-JC-YB-599ZBKF-24-15

2024

10.12347/j.ycyk.20240413001

遥测遥控
中国航天工业总公司第七0四研究所

遥测遥控

CSTPCD
影响因子：0.28
ISSN：
年,卷(期)：2024.45(5)
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