A Vision of 6G Wireless Systems: Applications, Trends, Technologies, and Open Research Problems
A Vision of 6G Wireless Systems: Applications, Trends, Technologies, and Open Research Problems
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DOI：
10.1109/mnet.001.1900287
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发表时间：
2020-05-01
期刊：
影响因子：
9.3
通讯作者：
Chen, Mingzhe
中科院分区：
文献类型：
--
作者：
Saad, Walid;Bennis, Mehdi;Chen, Mingzhe
与最初作为万物互联应用推动者的前提相比，5G 蜂窝系统的持续部署不断暴露出该系统的固有局限性。这些 5G 缺点正在刺激全球范围内的活动，重点是定义下一代 6G 无线系统，该系统可以真正集成从自主系统到扩展现实等影响深远的应用。尽管最近出现了 6G 举措（芬兰的 6Genesis 项目就是一个例子），但 6G 的基本架构和性能组件在很大程度上仍未定义。在本文中，我们提出了一个全面的、前瞻性的愿景，定义了 6G 系统的原则。我们认为，6G 不仅仅是对高频段更多频谱的探索，而是由令人兴奋的基础服务驱动的即将到来的技术趋势的融合。在这方面，我们首先从应用和相关技术趋势方面确定 6G 系统的主要驱动因素。然后，我们提出一组新的服务类别并公开其目标 6G 性能要求。然后，我们确定推出的 6G 服务的支持技术，并概述利用这些技术的全面研究议程。最后，我们为 6G 路线图提供了具体建议。最终，本文的目的是作为激发更多围绕 6G 的开箱即用研究的基础。
The ongoing deployment of 5G cellular systems is continuously exposing the inherent limitations of this system, compared to its original premise as an enabler for Internet of Everything applications. These 5G drawbacks are spurring worldwide activities focused on defining the next-generation 6G wireless system that can truly integrate far-reaching applications ranging from autonomous systems to extended reality. Despite recent 6G initiatives (one example is the 6Genesis project in Finland), the fundamental architectural and performance components of 6G remain largely undefined. In this article, we present a holistic, forward-looking vision that defines the tenets of a 6G system. We opine that 6G will not be a mere exploration of more spectrum at high-frequency bands, but it will rather be a convergence of upcoming technological trends driven by exciting, underlying services. In this regard, we first identify the primary drivers of 6G systems, in terms of applications and accompanying technological trends. Then, we propose a new set of service classes and expose their target 6G performance requirements. We then identify the enabling technologies for the introduced 6G services and outline a comprehensive research agenda that leverages those technologies. We conclude by providing concrete recommendations for the roadmap toward 6G. Ultimately, the intent of this article is to serve as a basis for stimulating more out-of-the-box research around 6G.