论文标题
通往6G的道路：通信工程师的十个物理层挑战
The Road to 6G: Ten Physical Layer Challenges for Communications Engineers
论文作者
论文摘要
尽管5G蜂窝系统的部署将继续持续到未来十年，但已经对将是其继任者6G的技术产生了很多兴趣。不可否认的是，5G将对我们的生活和交流方式产生变革性的影响，但是，它仍然远离支撑每种用途（IOE），在这里，每$ \ textrm {km}^3 $（terrestial and Aereratial and Airial）超过一百万个设备将需要无处不在，可靠的，可靠的，可靠的，可靠的，低度的连接。本文着眼于与6G的关键物理层促成器有关的一些基本问题。这包括强调与智能反射表面，无细胞的大型MIMO和THZ通信相关的挑战。我们的分析涵盖了理论建模挑战，硬件实施问题和可扩展性。本文结束了，描述了信号处理在新时代的无线通信中的关键作用。
While the deployment of 5G cellular systems will continue well in to the next decade, much interest is already being generated towards technologies that will underlie its successor, 6G. Undeniably, 5G will have transformative impact on the way we live and communicate, yet, it is still far away from supporting the Internet-of-Everything (IoE), where upwards of a million devices per $\textrm{km}^3$ (both terrestrial and aerial) will require ubiquitous, reliable, low-latency connectivity. This article looks at some of the fundamental problems that pertain to key physical layer enablers for 6G. This includes highlighting challenges related to intelligent reflecting surfaces, cell-free massive MIMO and THz communications. Our analysis covers theoretical modeling challenges, hardware implementation issues and scalability among others. The article concludes by delineating the critical role of signal processing in the new era for wireless communications.
