FULL-DUPLEX ENABLED INTELLIGENT REELECTING SURFACE SYSTEMS: OPPORTUNITIES AND CHALLENGES

被引:23
作者
Pan, Gaofeng [1 ,2 ]
Ye, Jia [2 ]
An, Jianping [3 ]
Alouini, Mohamed-Slim [2 ]
机构
[1] Beijing Inst Technol, Sch Cyberspace Sci & Technol, Beijing, Peoples R China
[2] King Abdullah Univ Sci & Technol KAUST, Thuwal, Saudi Arabia
[3] Beijing Inst Technol, Beijing, Peoples R China
关键词
D O I
10.1109/MWC.001.2000343
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
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, such as 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 demonstrate the virtues of FD-enabled IRS systems, 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 achieved benefits. Finally, the challenges and directions of realizing FD-enabled IRS systems are outlined and elaborated upon.
引用
收藏
页码:122 / 129
页数:8
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