High Fidelity and Efficiency Simulator for 6G Integrated Space–Ground Network

IF 11.6 1区 工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY
Haibo Zhou, Xiaoyu Liu, Xin Zhang, Xiaohan Qin, Mengyang Zhang, Yuze Liu, Weihua Zhuang, Xuemin Shen
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引用次数: 0

Abstract

Mega-constellation networks have recently gained significant research attention because of their potential for providing ubiquitous and high-capacity connectivity in future sixth-generation (6G) wireless communication systems. However, the high dynamics of network topology and large-scale of a mega-constellation pose new challenges to constellation simulation and performance evaluation. To address these issues, we introduce UltraStar, a high-fidelity and high-efficiency computer simulator to support the development of 6G wireless communication systems with low-Earth-orbit mega-constellation satellites. The simulator facilitates the design and performance analysis of various algorithms and protocols for network operation and deployment. We propose a systematic, scalable, and comprehensive simulation architecture for the high-fidelity modeling of network configurations and for performing high-efficiency simulations of network operations and management capabilities, while providing users with intuitive visualizations. We capture heterogeneous topology characteristics by establishing an environment update algorithm that incorporates real ephemeris data for satellite orbit prediction, sun outages, and link handovers. For a realistic simulation of software and hardware configurations, we develop a network simulator version 3 based network model to support networking protocol extensions. We propose a message passing interface-based parallel and distributed approach with multiple cores or machines to achieve high simulation efficiency in large and complex network scenarios. Experimental results demonstrate the high fidelity and efficiency of UltraStar can help pave the way for 6G integrated space–ground networks.
6G空间-地面综合网络高保真高效模拟器
巨型星座网络由于其在未来第六代(6G)无线通信系统中提供无处不在的高容量连接的潜力,最近获得了重要的研究关注。然而,网络拓扑结构的高动态性和超大星座的规模给星座仿真和性能评估带来了新的挑战。为了解决这些问题,我们推出了一个高保真、高效率的计算机模拟器UltraStar,以支持低地球轨道大星座卫星的6G无线通信系统的开发。该模拟器便于对网络运行和部署的各种算法和协议进行设计和性能分析。我们提出了一个系统的、可扩展的、全面的仿真体系结构,用于网络配置的高保真建模和网络操作和管理能力的高效仿真,同时为用户提供直观的可视化。我们通过建立一种环境更新算法来捕获异构拓扑特征,该算法结合了用于卫星轨道预测、太阳中断和链路切换的真实星历数据。为了真实地模拟软件和硬件配置,我们开发了一个基于网络模型的网络模拟器版本3,以支持网络协议扩展。为了在大型复杂网络场景下实现高仿真效率,我们提出了一种基于消息传递接口的多核或多机并行分布式方法。实验结果表明,UltraStar的高保真度和高效性可以为6G综合空间地面网络铺平道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Engineering
Engineering Environmental Science-Environmental Engineering
自引率
1.60%
发文量
335
审稿时长
35 days
期刊介绍: Engineering, an international open-access journal initiated by the Chinese Academy of Engineering (CAE) in 2015, serves as a distinguished platform for disseminating cutting-edge advancements in engineering R&D, sharing major research outputs, and highlighting key achievements worldwide. The journal's objectives encompass reporting progress in engineering science, fostering discussions on hot topics, addressing areas of interest, challenges, and prospects in engineering development, while considering human and environmental well-being and ethics in engineering. It aims to inspire breakthroughs and innovations with profound economic and social significance, propelling them to advanced international standards and transforming them into a new productive force. Ultimately, this endeavor seeks to bring about positive changes globally, benefit humanity, and shape a new future.
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