面向超大规模阵列的近场通信研究*

doi:10.12267/j.issn.2096-5931.2023.09.008

信息通信技术与政策 ›› 2023, Vol. 49 ›› Issue (9): 52-57.doi: 10.12267/j.issn.2096-5931.2023.09.008

面向超大规模阵列的近场通信研究^*

Near-field communications for extremely large-scale array

丛嘉艺¹, 李国宇¹^,², 游昌盛¹

1.南方科技大学工学院,深圳 518055
2.哈尔滨工业大学电子与信息工程学院,哈尔滨 150001

收稿日期:2023-07-21 出版日期:2023-09-25 发布日期:2023-09-27
作者简介:
游昌盛南方科技大学工学院副研究员,博士生导师,主要研究方向为智能反射面通信、超大规模阵列通信、边缘计算与边缘智能等
李国宇南方科技大学工学院访问学生,哈尔滨工业大学电子与信息工程学院博士研究生在读,主要研究方向为信道建模、MIMO通信等
丛嘉艺南方科技大学工学院博士研究生在读,主要研究方向为优化算法、MIMO通信、机器学习等
基金资助:
^*国家自然科学基金项目(62201242);国家自然科学基金项目(62331023);中国科协青年人才托举工程项目(2022QNRC001)

CONG Jiayi¹, LI Guoyu¹^,², YOU Changsheng¹

1. College of Engineering, Southern University of Science and Technology, Shenzhen 518055, China
2. School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:2023-07-21 Online:2023-09-25 Published:2023-09-27

摘要/Abstract

摘要：

超大规模阵列可以有效提升传输距离,克服路径损耗,为通信发展带来新的机遇。在超大规模天线阵列系统中,用户和散射体更可能位于近场辐射区域,通信系统应采用更精确的球面波模型。然而,目前针对超大规模阵列近场通信的研究尚处于初始阶段,面临着码本搜索开销大、波束追踪复杂度高等问题。基于现有研究基础,分析了近场通信中的关键问题,包括波束训练、波束追踪以及天线可视区域,指出所面临的挑战,并提出了未来愿景。

关键词: 超大规模阵列, 近场通信, 波束训练, 天线可视区域

Abstract:

Extremely large-scale array has brought new opportunities for communication by effectively increasing the transmission distance and overcoming the path loss. In the extremely large-scale array system, the user and the scatterer are likely to be located in the near-field radiation region. Therefore, the communication system should adopt an accurate spherical wave model. However, research on near-field communication for extremely large-scale array is still in its initial stage and faces some challenges such as the high cost of codebook search and high complexity of beam tracking. This paper analyzes the key problems in near-field communication for extremely large-scale array, including beam training, beam tracking and visibility regions of antenna based on existing research. Then, it presents the challenges and proposes the future vision.

Key words: extremely large-scale array, near-field communication, beam training, visibility regions of antenna

中图分类号:

TN929.5

丛嘉艺, 李国宇, 游昌盛. 面向超大规模阵列的近场通信研究^*[J]. 信息通信技术与政策, 2023, 49(9): 52-57.

CONG Jiayi, LI Guoyu, YOU Changsheng. Near-field communications for extremely large-scale array[J]. Information and Communications Technology and Policy, 2023, 49(9): 52-57.

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http://ictp.caict.ac.cn/CN/10.12267/j.issn.2096-5931.2023.09.008

http://ictp.caict.ac.cn/CN/Y2023/V49/I9/52

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参考文献 18

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面向超大规模阵列的近场通信研究^*

Near-field communications for extremely large-scale array

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