TY - GEN
T1 - Performance Analysis of Intelligent Reflecting Surface-Assisted Orbital Angular Momentum-Based Communication Systems
AU - Ono, Kosei
AU - Yoshii, Kazutoshi
AU - Saito, Megumi
AU - Pan, Zhenni
AU - Liu, Jiang
AU - Shimamoto, Shigeru
N1 - Publisher Copyright:
© 2022 Global IT Research Institute-GiRI.
PY - 2022
Y1 - 2022
N2 - Uniformed circular array antenna (UCA) based orbital angular momentum (OAM) communication system has some disadvantages, such as not being suitable for long-distance multiplexing and requiring a high degree of synchronization between the transmitting and receiving antennas. To achieve non-line-of-sight (NLoS) communication using OAM radio waves, we propose an inter-mode interference (IMI) cancellation method for intelligent reflecting surface (IRS)-Assisted OAM multiplexing to eliminate the IMI from all OAM modes. We also propose a L2-ba11 projection method to optimize the transmit power allocation for OAM modes to increase the system capacity of IRS-assisted OAM communication systems. The IMI cancellation method and the L2-ball projection method are shown to achieve increasing the maximum system capacity as compared to the L1-ball projection method when the IRS is located closer to the middle between the transmitter UCA and receiver UCA.
AB - Uniformed circular array antenna (UCA) based orbital angular momentum (OAM) communication system has some disadvantages, such as not being suitable for long-distance multiplexing and requiring a high degree of synchronization between the transmitting and receiving antennas. To achieve non-line-of-sight (NLoS) communication using OAM radio waves, we propose an inter-mode interference (IMI) cancellation method for intelligent reflecting surface (IRS)-Assisted OAM multiplexing to eliminate the IMI from all OAM modes. We also propose a L2-ba11 projection method to optimize the transmit power allocation for OAM modes to increase the system capacity of IRS-assisted OAM communication systems. The IMI cancellation method and the L2-ball projection method are shown to achieve increasing the maximum system capacity as compared to the L1-ball projection method when the IRS is located closer to the middle between the transmitter UCA and receiver UCA.
KW - intelligent reflecting surface (IRS)
KW - inter-mode interference (IMI) cancellation
KW - orbital angular momentum (OAM)
KW - spatial multiplexing
KW - unified circular array antenna (UCA)
UR - http://www.scopus.com/inward/record.url?scp=85127480192&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85127480192&partnerID=8YFLogxK
U2 - 10.23919/ICACT53585.2022.9728924
DO - 10.23919/ICACT53585.2022.9728924
M3 - Conference contribution
AN - SCOPUS:85127480192
T3 - International Conference on Advanced Communication Technology, ICACT
SP - 7
EP - 12
BT - 24th International Conference on Advanced Communication Technology
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 24th International Conference on Advanced Communication Technology, ICACT 2022
Y2 - 13 February 2022 through 16 February 2022
ER -