太赫兹（THz）无线系统的七个定义特征：通信和传感研究员
Seven Defining Features of Terahertz (THz) Wireless Systems: A Fellowship of Communication and Sensing
摘要：
太赫兹（THz）频段（0.1- 10 THz）的无线通信被视为未来6 G无线系统的基石之一。由于大量的可用带宽，太赫兹频率可以潜在地提供无线容量性能增益，并实现高分辨率感测。然而，在太赫兹波段操作无线系统受到高度不确定的信道的限制。有效地，这些通道限制导致不可靠的间歇性链路，这是由于短的通信范围，以及对阻塞和分子吸收的高度敏感性。因此，这种障碍可能会破坏太赫兹波段的高速率通信和高分辨率传感能力的承诺。在这种情况下，本文将探讨有效地部署和操作下一代太赫兹无线系统，将协同支持通信和传感服务的奖学金所需的步骤。为此，我们首先通过描述太赫兹频段的基本原理来搭建舞台。基于这些基本原理，我们描述了THz无线系统的七个独特的定义特征：1）频带的准光学性，2）THz定制的无线架构，3）与低频段的协同作用，4）联合传感和通信系统，5）PHY层程序，6）频谱接入技术，7）实时网络优化。这七个定义功能使我们能够阐明如何重新设计我们今天所知道的无线系统，以便使它们准备好支持THz频段。此外，这些功能突出了THz系统如何将每一个通信挑战转化为感知机会。最终，本文的目标是绘制一个前瞻性的路线图，揭示必要的解决方案和里程碑，使太赫兹频率实现其作为下一代无线系统游戏规则改变者的潜力。
英文摘要：
Wireless communication at the terahertz (THz) frequency bands (0.1-10THz) is viewed as one of the cornerstones of tomorrow's 6G wireless systems. Owing to the large amount of available bandwidth, THz frequencies can potentially provide wireless capacity performance gains and enable high-resolution sensing. However, operating a wireless system at the THz-band is limited by a highly uncertain channel. Effectively, these channel limitations lead to unreliable intermittent links as a result of a short communication range, and a high susceptibility to blockage and molecular absorption. Consequently, such impediments could disrupt the THz band's promise of high-rate communications and high-resolution sensing capabilities. In this context, this paper panoramically examines the steps needed to efficiently deploy and operate next-generation THz wireless systems that will synergistically support a fellowship of communication and sensing services. For this purpose, we first set the stage by describing the fundamentals of the THz frequency band. Based on these fundamentals, we characterize seven unique defining features of THz wireless systems: 1) Quasi-opticality of the band, 2) THz-tailored wireless architectures, 3) Synergy with lower frequency bands, 4) Joint sensing and communication systems, 5) PHY-layer procedures, 6) Spectrum access techniques, and 7) Real-time network optimization. These seven defining features allow us to shed light on how to re-engineer wireless systems as we know them today so as to make them ready to support THz bands. Furthermore, these features highlight how THz systems turn every communication challenge into a sensing opportunity. Ultimately, the goal of this article is to chart a forward-looking roadmap that exposes the necessary solutions and milestones for enabling THz frequencies to realize their potential as a game changer for next-generation wireless systems.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
