面向6G多维扩展的新型多址接入技术综述

逄小玮; 蒋旭; 卢华兵; 赵楠

doi:10.11999/JEIT231265

面向6G多维扩展的新型多址接入技术综述

doi: 10.11999/JEIT231265

逄小玮¹,
蒋旭²,
卢华兵¹,
赵楠^1, ,

1.
大连理工大学信息与通信工程学院大连 116024
2.
哈尔滨工业大学(威海)信息科学与工程学院威海 264209

基金项目: 国家重点研发计划(2020YFB1807002)，国家自然科学基金 (62101091, 62371087)，辽宁省应用基础研究计划(2023TH2/101300197)

详细信息

作者简介:
逄小玮：女，博士生，研究方向为无人机通信、智能反射面、非正交多址接入、通感一体化

蒋旭：男，副教授，研究方向为通感一体化、无人机通信、隐蔽通信

卢华兵：男，助理研究员，研究方向为通感一体化、无人机通信、物理层安全

赵楠：男，教授，博士生导师，研究方向为通感一体化、无人机通信、非正交多址接入、干扰管理、绿色通信

通讯作者:
赵楠　zhaonan@dlut.edu.cn

中图分类号: TN915
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- 被引次数: 0
出版历程
- 收稿日期: 2023-11-15
- 修回日期: 2024-01-20
- 网络出版日期: 2024-02-21
- 刊出日期: 2024-06-30

An Overview of Novel Multi-access Techniques for Multi-dimensional Expanded 6G

1.
School of Information and Communication Engineering, Dalian University of Technology, Dalian 116024, China
2.
School of Information Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China

Funds: The National Key R&D Program of China (2020YFB1807002), The National Natural Science Foundation of China (62101091,62371087), Application and Fundamental Research Planning Project in Liaoning Province (2023TH2/101300197)

摘要

摘要: 随着移动通信技术的不断演进，第6代移动通信(6G)将实现从万物互联到万物智联的跨越，满足更高的数据需求和更广泛的应用场景。新型多址接入技术和多维扩展技术将在6G中协同发挥作用，为构建高效、智能、可靠的通信网络提供关键支持，满足未来通信的多重需求。该文旨在探讨新型多址接入技术在6G多维扩展通信网络中的应用潜力。首先，该文对比了传统多址接入技术与6G潜在新型多址接入技术，并重点阐述了非正交多址接入技术在提升频谱效率和系统容量方面的优势。然后，详细介绍了卫星通信、无人机(UAV)通信和智能反射面(IRS)等多维扩展技术在6G场景下的优势。进一步，讨论了新型多址技术与卫星通信、UAV以及IRS相结合的优势及协同应用。最后，探讨了基于新型多址接入技术的多维扩展网络中的关键技术挑战，包括大规模多入多出技术、太赫兹技术、通感算一体化、用户信息安全、不完美信道状态信息(CSI)估计，同时对新型编码技术、人工智能和机器学习等研究方向进行了展望。
- 6G移动通信 /
- 多维扩展 /
- 新型多址接入技术 /
- 卫星通信 /
- 无人机 /
- 智能反射面
Abstract: With the evolution of mobile communication technology, the Sixth-Generation (6G) wireless networks will achieve a leap from the internet of things to the internet of intelligent things, meeting higher data demands and broader application scenarios. Novel multiple access technologies and multidimensional expansion techniques will jointly play a role in 6G, providing crucial support for building an efficient, intelligent, and reliable communication network to meet the diverse demands of future communications. Therefore, this review paper aims to explore the application potentials of novel multiple access technologies in multidimensional expansion 6G communication networks. Firstly, it compares traditional multiple access technologies with potential novel multiple access technologies in 6G, with a focus on the advantages of non-orthogonal multiple access technology in improving spectral efficiency and system capacity. Then, it provides a detailed introduction to the advantages and functions of multidimensional expansion technologies such as satellite communication, Unmanned Aerial Vehicle (UAV), and Intelligent Reflecting Surface (IRS) in 6G scenarios. Furthermore, the advantages and collaborative applications of novel multiple access technologies in conjunction with satellite communication, UAV, and IRS are discussed. Finally, the paper discusses key technological challenges in a novel multi-dimensional extension network based on new multiple access technologies, including large-scale multiple-input-multiple-output, terahertz technology, integrated sensing, communication, and computing, user information security, and imperfect Channel State Information (CSI) estimation, while also providing prospects for new coding technologies, artificial intelligence and machine learning.
- The 6th-generation wireless networks /
- Multi-dimensional expansion /
- Novel multiple access technology /
- Satellite communication /
- Unmanned aerial vehicle /
- Intelligent Reflecting Surface(IRS)

HTML全文

图 1 正交与非正交多址接入方式资源利用图

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图 2 空天地一体化网络架构

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图 3 基于新型多址技术的卫星通信网络

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图 4 基于NOMA的UAV下/上行通信场景

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图 5 基于NOMA的IRS辅助网络场景

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表 1 6G多维扩展网络中新型多址接入技术研究总结

参考文献	多址接入技术	多维扩展技术	研究场景	主要研究目的
[35]	NOMA	低轨卫星	物联网大规模接入	最小化网络总功耗
[36]	NOMA	卫星，UAV	空天地一体化中继	最大化无人机能效
[37]	合作式NOMA	UAV	蜂窝连接UAV	最大化上行加权和速率
[38]	RSMA	UAV	UAV服务地面用户	最大化用户加权和速率
[39] [40]	NOMA NOMA	UAV, IRS UAV, 可同时反射和透射的智能表面	移动边缘计算室内外全覆盖	最大化无人机计算能力最大化网络和速率

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