TY - GEN
T1 - RIS-Assisted Self-Interference Mitigation for IBFD
AU - Arzykulov, Sultangali
AU - Celik, Abdulkadir
AU - Nauryzbayev, Galymzhan
AU - Eltawil, Ahmed M.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In-band full-duplex (IBFD) technology offers a promising solution to address the demanding spectrum requirements of emerging wireless applications and use cases. Additionally, alongside the conventional reconfigurable intelligent surface (C-RIS), the simultaneously transmitting and reflecting RIS (STAR-RIS) is a promising technology that enables full-space coverage on both sides of the surface by dividing the incident signal into transmitted and reflected signals. Pairing FD with RIS technology creates new possibilities to achieve self-interference (SI) cancellation and spectral efficiency that were previously unattainable. This paper presents a novel approach leveraging C-RIS and STAR-RIS technologies in the IBFD network. Our methodology uses the C-RIS to improve SI mitigation at the FD transceiver, while the STAR-RIS serves as a connectivity enhancer for UL and DL transmissions. To fully leverage these capabilities, we propose a joint C-RIS and STAR-RIS problem, which entails optimizing the number of elements in the C-RIS to cancel out SI. At the same time, we use numerical and closed-form solutions to optimize STAR-RIS partitioning and reflection coefficient control for optimal DL and UL transmission performance in STAR-RIS's transmission and reflection modes.
AB - In-band full-duplex (IBFD) technology offers a promising solution to address the demanding spectrum requirements of emerging wireless applications and use cases. Additionally, alongside the conventional reconfigurable intelligent surface (C-RIS), the simultaneously transmitting and reflecting RIS (STAR-RIS) is a promising technology that enables full-space coverage on both sides of the surface by dividing the incident signal into transmitted and reflected signals. Pairing FD with RIS technology creates new possibilities to achieve self-interference (SI) cancellation and spectral efficiency that were previously unattainable. This paper presents a novel approach leveraging C-RIS and STAR-RIS technologies in the IBFD network. Our methodology uses the C-RIS to improve SI mitigation at the FD transceiver, while the STAR-RIS serves as a connectivity enhancer for UL and DL transmissions. To fully leverage these capabilities, we propose a joint C-RIS and STAR-RIS problem, which entails optimizing the number of elements in the C-RIS to cancel out SI. At the same time, we use numerical and closed-form solutions to optimize STAR-RIS partitioning and reflection coefficient control for optimal DL and UL transmission performance in STAR-RIS's transmission and reflection modes.
KW - Full-duplex
KW - Reconfigurable Intelligent Surfaces
KW - SI Mitigation
UR - http://www.scopus.com/inward/record.url?scp=85190392806&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85190392806&partnerID=8YFLogxK
U2 - 10.1109/IEEECONF59524.2023.10476983
DO - 10.1109/IEEECONF59524.2023.10476983
M3 - Conference contribution
AN - SCOPUS:85190392806
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 182
EP - 187
BT - Conference Record of the 57th Asilomar Conference on Signals, Systems and Computers, ACSSC 2023
A2 - Matthews, Michael B.
PB - IEEE Computer Society
T2 - 57th Asilomar Conference on Signals, Systems and Computers, ACSSC 2023
Y2 - 29 October 2023 through 1 November 2023
ER -