专题:5G 组网与 6G 展望
6G 智慧雾无线接入网:架构与关键技术
张贤,曹雪妍,刘炳宏,艾元,刘晨熙
(北京邮电大学,北京 100876)
摘 要:融合雾无线接入网、非正交多址技术以及人工智能技术优势的智慧雾无线接入网,被认为是满足 6G
无线网络巨容量、极低时延及超连接性能需求的有效解决方案。将概述 6G 智慧雾无线接入网的基本原理、关
键技术、国内外研究和产业进展、智慧雾无线接入网标准化进展等,探讨智慧雾无线接入网面临的技术挑战。
关键词:6G;雾无线接入网;人工智能;非正交多址;资源调配
中图分类号:TP393
文献标识码:A
doi: 10.11959/j.issn.1000-0801.2020012
Smart fog radio access networks for 6G:
architecture and key technologies
ZHANG Xian, CAO Xueyan, LIU Binghong, AI Yuan, LIU Chenxi
Beijing University of Posts and Telecommunicaitons, Beijing 100876, China
Abstract: Taking full advantage of fog radio access network (F-RAN), non-orthogonal multiple access techniques,
and artificial intelligence techniques, smart fog radio access networks (S-FRAN) have been envisioned as a promising
framework to fulfill the stringent requirements of 6G wireless network, such as ultra-high data rate, ultra-low latency,
and ultra-large number of devices. The principles of S-RAN were firstly presented. Based on which, the key technol-
ogies, research progress and standardization of S-FRAN were introduced. Finally, the challenges of S-FRAN were
identified.
Key words: 6G, fog radio access network, artificial intelligence, NOMA, resource allocation
1 引言
近年来,增强/虚拟现实、车联网和全息影像
等新兴应用的快速发展以及全球移动设备和数据
量的指数级增长,给当前 5G 和未来 6G 无线网络
的设计和部署带来前所未有的挑战。据预测,6G
无线网络的关键性能指标将是 5G 无线网络的 10 倍,
其中峰值速率将达到 1 Tbit/s, 空口时延小于 1 ms,
设备连接数超过 1 000 万/km
2 [1]
。为了实现 6G 无
线网络巨容量、极低时延和超连接的蓝图,迫切
需要发展新的移动通信理论和技术。在此背景下,
面向 6G 的智慧雾无线接入网,融合了雾无线接入
收稿日期:2019−12−18;修回日期:2020−01−07
基金项目:国家自然科学基金面上项目(No.61471074);北京市自然科学基金资助项目(No.JQ18016)
Foundation Items: The National Science Foundation of China (No.61471074), Beijing Municipal Natural Science Foundation (No.JQ18016)
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