论文标题
UWB无线通信的时间逆转多重访问的实验验证为$ 273 $ GHz频率
Experimental Validation of Time Reversal Multiple Access for UWB Wireless Communications Centered at the $273$ GHz Frequency
论文作者
论文摘要
低功率消耗无线通信和低复杂性接收器的超高数据速率是接下来的6-2-代（6G）通信网络的关键要求之一。子terahertz（Subthz）频带可以支持超宽带（UWB）通信，因此可以提供无线网络容量前所未有的增加，从而使这些频段和相关研究成为6G的强大候选技术。但是，与毫米波通信相反，Subthz收发器的技术进步尚未完全成熟。在本文中，我们专注于时间逆转（TR）预编码方案，该方案是一种计算简单且强大的技术，能够通过在可用时利用通道多样性来将UWB波形聚焦在时间和空间上。我们设计了一种新颖的实验设置，包括带有波导内部的THZ链接，并在带有2 GHz传输带宽的载体频率273.6 GHz上运行，并将其部署以执行具有简单调制的多用户通信。我们的结果表明，接收天线的空间分离仅为3 mm。
Ultra-high data rates with low-power consumption wireless communications and low-complexity receivers is one of the key requirements for the next 6-th Generation (6G) of communication networks. Sub-Terahertz (SubTHz) frequency bands can support Ultra-WideBand (UWB) communications and can thus offer unprecedented increase in the wireless network capacity, rendering those bands and relevant research a strong candidate technology for 6G. However, in contrast to millimeter-wave communications, the technological advances in subTHz transceivers are not yet completely mature. In this paper, we focus on the Time Reversal (TR) precoding scheme, which is a computationally simple and robust technique capable of focusing UWB waveforms on both time and space, by exploiting channel diversity when available. We design a novel experimental setup, including a THz link inside a waveguide and operating at the carrier frequency 273.6 GHz with 2 GHz transmission bandwidth, and deploy it to perform multi-user communications with simple modulation. Our results demonstrate large communication rates with only 3 mm space separation of the receiving antennas.
