TY - CHAP
T1 - Optimal Control for Full-Duplex Communications with Reconfigurable Intelligent Surface
AU - Yang, Zhaohui
AU - Huang, Chongwen
AU - Shi, Jianfeng
AU - Chau, Yuen
AU - Xu, Wei
AU - Zhang, Zhaoyang
AU - Shikh-Bahaei, Mohammad
N1 - Funding Information:
This work was supported in part by the EPSRC SENSE Project under grant EP/P003486/1, by EPSRC IoSIRE Project under Grant EP/P022723/1, by the NSFC under grants 62022026, 61871109, U20A20158 and 61725104, and the Natural Science Foundation of Jiangsu Province under Grant BK20190012, by IAF-PP under Grant No. A19D6a0053.
Publisher Copyright:
© 2021 IEEE.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/6
Y1 - 2021/6
N2 - In this paper, the problem of optimal passive beamforming design is studied for a reconfigurable intelligent surface (RIS) assisted full-duplex (FD) communication system. In the studied model, two devices communicate with each other using one RIS under the FD mode. Each of the device will receive not only the message from the other device but also the self-interference. The main problem of this work is to minimize the sum transmit power by jointly optimizing the reflection coefficients matrix and the transmit power of devices. To solve this problem, a dual method is proposed, where the dual problem is formulated as a semidefinite programming problem. After solving the dual problem, the phase beamforming of the RIS is obtained in the closed form. Simulation results show that the proposed scheme can reduce up to 66% sum transmit power compared to a conventional RIS assisted half-duplex mode.
AB - In this paper, the problem of optimal passive beamforming design is studied for a reconfigurable intelligent surface (RIS) assisted full-duplex (FD) communication system. In the studied model, two devices communicate with each other using one RIS under the FD mode. Each of the device will receive not only the message from the other device but also the self-interference. The main problem of this work is to minimize the sum transmit power by jointly optimizing the reflection coefficients matrix and the transmit power of devices. To solve this problem, a dual method is proposed, where the dual problem is formulated as a semidefinite programming problem. After solving the dual problem, the phase beamforming of the RIS is obtained in the closed form. Simulation results show that the proposed scheme can reduce up to 66% sum transmit power compared to a conventional RIS assisted half-duplex mode.
KW - full-duplex system
KW - power control
KW - Reconfigurable intelligent surface
UR - http://www.scopus.com/inward/record.url?scp=85115709325&partnerID=8YFLogxK
U2 - 10.1109/ICC42927.2021.9500481
DO - 10.1109/ICC42927.2021.9500481
M3 - Conference paper
AN - SCOPUS:85115709325
T3 - IEEE International Conference on Communications
BT - ICC 2021 - IEEE International Conference on Communications, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Conference on Communications, ICC 2021
Y2 - 14 June 2021 through 23 June 2021
ER -