基于干扰感知的多星协同跳波束资源分配

doi:10.11959/j.issn.1000-0801.2023161

电信科学 ›› 2023, Vol. 39 ›› Issue (8): 17-28.doi: 10.11959/j.issn.1000-0801.2023161

• 研究与开发 • 上一篇

基于干扰感知的多星协同跳波束资源分配

胡金龙¹^,²^,³, 刘继红¹^,²^,³, 周一青¹^,²^,³, 曹欢¹^,²^,³, 刘子凡¹^,²^,³, 赵佳伟¹^,²^,³, 原进宏⁴

¹ 处理器芯片全国重点实验室，中国科学院计算技术研究所，北京 100190
² 中国科学院大学，北京 100049
³ 移动计算与新型终端北京市重点实验室，北京 100190
⁴ 新南威尔士大学电气工程与通信学院，新南威尔士州悉尼 NSW2052

修回日期:2023-08-09 出版日期:2023-08-01 发布日期:2023-08-01
作者简介:胡金龙（1982- ），男，中国科学院计算技术研究所博士生，主要研究方向为卫星通信网络、无线自组织网络无线资源管理技术及信号处理技术
刘继红（1986- ），女，中国科学院计算技术研究所博士生，主要研究方向为无线资源分配、车联网、LEO卫星通信
周一青（1975- ），女，中国科学院计算技术研究所研究员、无线中心副主任，主要研究方向为计算与通信融合、异构网络和干扰管理
曹欢（1988- ），男，中国科学院计算技术研究所工程师，主要研究方向为卫星通信系统资源管控
刘子凡（1996- ），男，中国科学院计算技术研究所助理工程师，主要研究方向为卫星组网
赵佳伟（1999- ），男，中国科学院计算技术研究所硕士生，主要研究方向为卫星通信
原进宏（1969- ），男，新南威尔士大学电气工程与通信学院教授及通信学科负责人，主要研究方向为差错控制编码、无线通信理论及信息论
基金资助:
国家重点研发计划项目(2020YFB1808004)

Multi-satellite cooperative beam hopping resource allocation based on interference perception

Jinlong HU¹^,²^,³, Jihong LIU¹^,²^,³, Yiqing ZHOU¹^,²^,³, Huan CAO¹^,²^,³, Zifan LIU¹^,²^,³, Jiawei ZHAO¹^,²^,³, Jinhong YUAN⁴

¹ State Key Lab of Processors, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China
² University of Chinese Academy of Sciences, Beijing 100049, China
³ Beijing Key Laboratory of Mobile Computing and Pervasive Device, Beijing 100190, China
⁴ School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney NSW2052, Australia

Revised:2023-08-09 Online:2023-08-01 Published:2023-08-01
Supported by:
The National Key Research and Development Project of China(2020YFB1808004)

摘要/Abstract

摘要：

跳波束（beam hopping，BH）技术是解决低地球轨道（low earth orbit，LEO）卫星资源分配的波束个数受限及传输需求不均匀问题的关键技术，但是现有研究仅考虑了单颗LEO卫星的跳波束资源分配，即一颗卫星服务一个地面区域的跳波束资源分配方案。然而实际的LEO卫星覆盖是由多个轨道上的多颗卫星同时协同覆盖的。现有方案仅考虑单颗卫星的跳波束资源分配，会带来卫星间的波束干扰，导致通信质量下降，吞吐量降低。针对上述问题，提出了基于干扰感知的LEO多星协同跳波束资源分配（IARA-BH）方案，在满足用户需求的前提下，以优化网络的干扰分布水平、提升网络系统吞吐量为目标，寻找最优的跳波束资源分配方案。仿真结果表明，相比较仅考虑单星的跳波束资源分配方案，多星协同跳波束资源分配方案的平均信号干扰比（signal to interference ratio，SIR）提升了15.52%，同时系统吞吐量提升了5.72%。

关键词: LEO卫星, 跳波束, 资源分配

Abstract:

Beam hopping (BH) is a crucial technology in the low earth orbit (LEO) satellite system with limited beams number and uneven transmission requirements.However, the existing research only considers the resource allocation of a single LEO satellite, that is, the resource allocation scheme in which one satellite serves one ground area.However, the actual LEO satellite coverage is simultaneously covered by multiple satellites in multiple orbits.Existing schemes only consider the resource allocation of a single satellite, which will cause beam interference between satellites, resulting in a decrease in communication quality and throughput.In response to the above problems, an interference aware cooperative resource allocation scheme for LEO with beam hopping (IARA-BH) was proposed.The basic idea of IARA-BH was to improve the interference distribution and throughput of multi-satellite networks under the constraint of guaranteeing user requirements by coordinating beam interference between satellites.The experiment results show that compared with the single-satellite beam hopping resource scheduling scheme, the multi-satellite cooperative beam hopping resource scheduling scheme can improve the average signal to interference ratio (SIR) by 15.52%, and the system throughput can be increased by 5.72%.

Key words: LEO satellite, beam hopping, resource allocation

中图分类号:

TN927

胡金龙, 刘继红, 周一青, 曹欢, 刘子凡, 赵佳伟, 原进宏. 基于干扰感知的多星协同跳波束资源分配[J]. 电信科学, 2023, 39(8): 17-28.

Jinlong HU, Jihong LIU, Yiqing ZHOU, Huan CAO, Zifan LIU, Jiawei ZHAO, Jinhong YUAN. Multi-satellite cooperative beam hopping resource allocation based on interference perception[J]. Telecommunications Science, 2023, 39(8): 17-28.

图/表 8

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参考文献 20

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参数	数值
系统总带宽	100 MHz
工作频率	20 GHz
卫星轨道高度	550 km
等效全向辐射功率	4 dBW/MHz
卫星发射天线增益图	Section 6.4.1 in 3GPP TR38.811
地面天线接收增益	39.7 dBi
半波束角	2°
波束半径	19.2 km
卫星发射天线最大增益	38.5 dBi
卫星个数	4
区域总半径	576.854 km
波位个数	1 590
单颗卫星的波束个数	8/16

基于干扰感知的多星协同跳波束资源分配

Multi-satellite cooperative beam hopping resource allocation based on interference perception

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