TY - JOUR
T1 - Full-Duplex Enabled Intelligent Reflecting Surface Systems: Opportunities and Challenges
AU - Pan, Gaofeng
AU - Ye, Jia
AU - An, Jianping
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2021-07-29
Acknowledgements: The authors would like to thank Prof. Tiejun Cui from Southeast University, P.R. China, for his valuable suggestions. The authors would also like to thank the Editor and anonymous reviewers for their constructive comments, which substantially helped to improve the quality of this work.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/670341
UR - https://ieeexplore.ieee.org/document/9474934/
U2 - 10.1109/MWC.001.2000343
DO - 10.1109/MWC.001.2000343
M3 - Article
SN - 1558-0687
SP - 1
EP - 8
JO - IEEE Wireless Communications
JF - IEEE Wireless Communications
ER -
