论文标题
当全双工传输符合智能反射表面时：机遇和挑战
When Full-Duplex Transmission Meets Intelligent Reflecting Surface: Opportunities and Challenges
论文作者
论文摘要
全双工（FD）传输已经被视为提高有限频谱资源的利用效率的有前途的方法，因为允许在同一频带上同时进行传输和接收。如今，从最近的智能反射表面（IRS）的发展中受益，某些独特的电磁（EM）功能，例如波浪形塑形，聚焦，异常反射，异常反射，吸收，频率转移和非股一度，可以通过IRS的软件能力和无用的ZOREDERINCTION的软件能力来实现，而无需质量ZONERAGS的能力，而无需进行无方向性的ZONERAGITACTION。为了共同利用FD传输和IRS的优点，在本文中，我们首先介绍了IRS的几种EM功能，这些功能可用于FD传播；然后，提出和讨论了一些启用FD的IRS系统的设计，然后进行数值结果以证明获得的好处。最后，概述并阐述了实现支持FD的IRS系统的挑战和开放问题。
Full-duplex (FD) transmission has already been regarded and developed as a promising method to improve the utilization efficiency of the limited spectrum resource, as transmitting and receiving are allowed to simultaneously occur on the same frequency band. Nowadays, benefiting from the recent development of intelligent reflecting surface (IRS), some unique electromagnetic (EM) functionalities, like wavefront shaping, focusing, anomalous reflection, absorption, frequency shifting, and nonreciprocity can be realized by soft-controlled elements at the IRS, showing the capability of reconfiguring the wireless propagation environment with no hardware cost and nearly zero energy consumption. To jointly exploit the virtues of both FD transmission and IRS, in this article we first introduce several EM functionalities of IRS that are profitable for FD transmission; then, some designs of FD-enabled IRS systems are proposed and discussed, followed by numerical results to demonstrate the obtained benefits. Finally, the challenges and open problems of realizing FD-enabled IRS systems are outlined and elaborated upon.
