UltraStar: A Lightweight Simulator of Ultra-Dense LEO Satellite Constellation Networking for 6G

doi:10.1109/JAS.2023.123084

CASIA OpenIR > 学术期刊 > IEEE/CAA Journal of Automatica Sinica

	UltraStar: A Lightweight Simulator of Ultra-Dense LEO Satellite Constellation Networking for 6G
	Xiaoyu Liu; Ting Ma; Zhixuan Tang; Xiaohan Qin; Haibo Zhou; Xuemin (Sherman) Shen
发表期刊	IEEE/CAA Journal of Automatica Sinica
ISSN	2329-9266
	2023
卷号	10 期号:3 页码:632-645
摘要	The mega-constellation network has gained significant attention recently due to its great potential in providing ubiquitous and high-capacity connectivity in sixth-generation (6G) wireless communication systems. However, the high dynamics of network topology and large scale of mega-constellation pose new challenges to the constellation simulation and performance evaluation. In this paper, we introduce UltraStar, a lightweight network simulator, which aims to facilitate the complicated simulation for the emerging mega-constellation of unprecedented scale. Particularly, a systematic and extensible architecture is proposed, where the joint requirement for network simulation, quantitative evaluation, data statistics and visualization is fully considered. For characterizing the network, we make lightweight abstractions of physical entities and models, which contain basic representatives of networking nodes, structures and protocol stacks. Then, to consider the high dynamics of Walker constellations, we give a two-stage topology maintenance method for constellation initialization and orbit prediction. Further, based on the discrete event simulation (DES) theory, a new set of discrete events is specifically designed for basic network processes, so as to maintain network state changes over time. Finally, taking the first-generation Starlink of 11 927 low earth orbit (LEO) satellites as an example, we use UltraStar to fully evaluate its network performance for different deployment stages, such as characteristics of constellation topology, performance of end-to-end service and effects of network-wide traffic interaction. The simulation results not only demonstrate its superior performance, but also verify the effectiveness of UltraStar.
关键词	Discrete event simulation (DES) mega-constellation network dynamics performance evaluation simulation architecture design
DOI	10.1109/JAS.2023.123084
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/51177
专题	学术期刊_IEEE/CAA Journal of Automatica Sinica
推荐引用方式 GB/T 7714	Xiaoyu Liu,Ting Ma,Zhixuan Tang,et al. UltraStar: A Lightweight Simulator of Ultra-Dense LEO Satellite Constellation Networking for 6G[J]. IEEE/CAA Journal of Automatica Sinica,2023,10(3):632-645.
APA	Xiaoyu Liu,Ting Ma,Zhixuan Tang,Xiaohan Qin,Haibo Zhou,&Xuemin .(2023).UltraStar: A Lightweight Simulator of Ultra-Dense LEO Satellite Constellation Networking for 6G.IEEE/CAA Journal of Automatica Sinica,10(3),632-645.
MLA	Xiaoyu Liu,et al."UltraStar: A Lightweight Simulator of Ultra-Dense LEO Satellite Constellation Networking for 6G".IEEE/CAA Journal of Automatica Sinica 10.3(2023):632-645.

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