TY - GEN
T1 - Reconfigurable Intelligent Surface Assisted Communications Using Dynamic Rotations
AU - Wang, Ke
AU - Lam, Chan Tong
AU - Ng, Benjamin K.
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this paper, we propose a rotatable reconfigurable intelligent surface (RIS) assisted system to enhance the transmission quality of wireless communications. The RIS is able to rotate for maximizing the cascaded channel gain dynamically. In particular, we first introduce a continuous-time propagation model for the rotatable RIS-aided communication system. Then, a rotation angle optimization problem is formulated and solved, which boosts the channel gain of the cascaded link. Besides, we derive the expression of the spectral efficiency for the proposed system. Numerical evaluations reveal that the dynamic rotation strategy can not only enhance spectral efficiency and reduce delay spread but is still effective when rotation errors exist.
AB - In this paper, we propose a rotatable reconfigurable intelligent surface (RIS) assisted system to enhance the transmission quality of wireless communications. The RIS is able to rotate for maximizing the cascaded channel gain dynamically. In particular, we first introduce a continuous-time propagation model for the rotatable RIS-aided communication system. Then, a rotation angle optimization problem is formulated and solved, which boosts the channel gain of the cascaded link. Besides, we derive the expression of the spectral efficiency for the proposed system. Numerical evaluations reveal that the dynamic rotation strategy can not only enhance spectral efficiency and reduce delay spread but is still effective when rotation errors exist.
KW - Reconfigurable intelligent surface
KW - rotation angle optimization
KW - spectral efficiency
UR - http://www.scopus.com/inward/record.url?scp=85152274890&partnerID=8YFLogxK
U2 - 10.1109/ICCT56141.2022.10072753
DO - 10.1109/ICCT56141.2022.10072753
M3 - Conference contribution
AN - SCOPUS:85152274890
T3 - International Conference on Communication Technology Proceedings, ICCT
SP - 652
EP - 656
BT - 2022 IEEE 22nd International Conference on Communication Technology, ICCT 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd IEEE International Conference on Communication Technology, ICCT 2022
Y2 - 11 November 2022 through 14 November 2022
ER -