Revolution or Evolution? Technical Requirements and Considerations towards 6G Mobile Communications.
Revolution or Evolution? Technical Requirements and Considerations towards 6G Mobile Communications.
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DOI：
10.3390/s22030762
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发表时间：
2022-01-20
期刊：
影响因子：
--
通讯作者：
Nandi D
中科院分区：
文献类型：
--
作者：
Alraih S;Shayea I;Behjati M;Nordin R;Abdullah NF;Abu-Samah A;Nandi D
自从推出第五代（5G）移动通信以来，移动通信行业一直在争论5G是对之前传统移动网络的“进化”还是“革命”，但随着5G在过去几年已经商用，研究方向最近转向了即将到来的新一代移动通信系统，即第六代（6G），预计它将为移动网络带来重大的、演进性的（甚至是革命性的）改进。极高的数据速率（以太比特为单位）、人工智能（AI）、超低延迟、接近零/低能耗和大量连接设备的承诺预计将增强连接性、可持续性和可信度，并提供一些新服务，例如真正身临其境的“扩展现实”（XR）、高保真移动全息图和新一代娱乐。第六代及其愿景仍在研究中，并可供开发人员和研究人员建立和开发实现未来 6G 技术的方向，预计最早将于 2028 年准备就绪。本文回顾了 6G 移动技术，包括其愿景、要求、支持技术和挑战。同时，还展示了太赫兹（THz）通信、可见光通信（VLC）、多址、编码、无细胞大规模多输入多输出（CF-mMIMO）零能量接口、智能反射面（IRS）以及人工智能/机器学习（ML）在无线传输技术中的注入等11项通信技术。此外，本文还从服务、关键技术和使能通信技术方面对5G和6G进行了比较。最后，讨论了6G未来的关键方向和技术发展。
Ever since the introduction of fifth generation (5G) mobile communications, the mobile telecommunications industry has been debating whether 5G is an “evolution” or “revolution” from the previous legacy mobile networks, but now that 5G has been commercially available for the past few years, the research direction has recently shifted towards the upcoming generation of mobile communication system, known as the sixth generation (6G), which is expected to drastically provide significant and evolutionary, if not revolutionary, improvements in mobile networks. The promise of extremely high data rates (in terabits), artificial intelligence (AI), ultra-low latency, near-zero/low energy, and immense connected devices is expected to enhance the connectivity, sustainability, and trustworthiness and provide some new services, such as truly immersive “extended reality” (XR), high-fidelity mobile hologram, and a new generation of entertainment. Sixth generation and its vision are still under research and open for developers and researchers to establish and develop their directions to realize future 6G technology, which is expected to be ready as early as 2028. This paper reviews 6G mobile technology, including its vision, requirements, enabling technologies, and challenges. Meanwhile, a total of 11 communication technologies, including terahertz (THz) communication, visible light communication (VLC), multiple access, coding, cell-free massive multiple-input multiple-output (CF-mMIMO) zero-energy interface, intelligent reflecting surface (IRS), and infusion of AI/machine learning (ML) in wireless transmission techniques, are presented. Moreover, this paper compares 5G and 6G in terms of services, key technologies, and enabling communications techniques. Finally, it discusses the crucial future directions and technology developments in 6G.
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影响因子：
4.1
作者：
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DOI：
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发表时间：
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