Mega LEO Satellite Constellations Networking: Challenges and Key Technologies

SUN Yaohua; FENG Xinao; PENG Mugen

doi:10.11959/j.issn.2096-8930.2024039

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Mega LEO Satellite Constellations Networking: Challenges and Key Technologies

Special Issue: Satellite-terrestrial Integrated Network and Transmission Technology | 更新时间：2025-01-02

- Mega LEO Satellite Constellations Networking: Challenges and Key Technologies
- Space-Integrated-Ground Information Networks Vol. 5, Issue 4, Pages: 57-74(2024)
- 作者机构：
  
  北京邮电大学网络与交换技术全国重点实验室，北京 100876
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(62371071;62001053);Young Elite Scientists Sponsorship Program by CAST(2021QNRC001)
- DOI：10.11959/j.issn.2096-8930.2024039
  CLC： TN927.2
- Received：01 September 2024，
  
  Revised：2024-11-13，
  
  Published：20 December 2024
- 稿件说明：
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孙耀华,冯昕澳,彭木根.低轨巨型星座组网：挑战与关键技术[J].天地一体化信息网络,2024,05(04):57-74.

SUN Yaohua,FENG Xinao,PENG Mugen.Mega LEO Satellite Constellations Networking: Challenges and Key Technologies[J].Space-Integrated-Ground Information Networks,2024,05(04):57-74.
孙耀华,冯昕澳,彭木根.低轨巨型星座组网：挑战与关键技术[J].天地一体化信息网络,2024,05(04):57-74. DOI： 10.11959/j.issn.2096-8930.2024039.

SUN Yaohua,FENG Xinao,PENG Mugen.Mega LEO Satellite Constellations Networking: Challenges and Key Technologies[J].Space-Integrated-Ground Information Networks,2024,05(04):57-74. DOI： 10.11959/j.issn.2096-8930.2024039.

摘要

得益于卫星制造与火箭发射技术的进步，巨型低轨星座组网已成为未来卫星互联网的重要发展方向。与传统低轨星座相比，多轨道混合组网，不同高度卫星分层联合形成的多轨、异构混合巨型星座具有节点数量更多、拓扑动态性更强等新特征。面向此类特点，首先从星座设计、协议融合、拓扑表征、路由算法、网络仿真等5个方面总结巨型低轨星座组网面临的挑战，然后从网络架构、协议设计、网络编址、星间建链、故障恢复等方面介绍巨型星座组网关键技术，并对其发展方向进行展望，以期对我国卫星互联网建设提供参考。

Abstract

Owing to the advances in satellite manufacturing and rocket launch technology

the deployment of mega LEO constellations has become an important direction for the development of satellite Internet. Compared with traditional LEO constellations

new mega constellations

characterized by multi-orbit hybrid networking and stratified integration of satellites at different altitudes

exhibit new features such as a greater number of nodes and more dynamic topology. In light of these features

this paper first summarized the challenges of mega LEO constellations networking from five aspects: constellation design

protocol integration

topology representation

routing algorithms

and network simulation. It then introduced the key technologies for mega constellation networking

included network architecture

protocol design

network addressing

inter-satellite link establishment

and fault recovery

and provided outlooks on their development directions

aimed to offer references for the construction of Chinese satellite Internet.

关键词

Keywords

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