TY - GEN
T1 - Inter-mode interference suppression employing even-numbered modes for UCA-Based OAM multiplexing
AU - Suganuma, Hirofumi
AU - Saito, Shuhei
AU - Ogawa, Kayo
AU - Maehara, Fumiaki
N1 - Funding Information:
This work was supported by JSPS Grant-in-Aid for Scientific Research Grant Number JP17K06445.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - This paper proposes an inter-mode interference suppression method that employs only even-numbered modes for uniform circular array (UCA)-based orbital angular momentum (OAM) multiplexing. Given that interference from adjacent OAM modes becomes severe when the beam axis is misaligned, the proposed method uses only the even-numbered modes while leaving the odd-numbered modes unused, which effectively prevents the inter-mode interference. Moreover, we verify the effectiveness of the proposed method by applying it to multiple-input and multiple-output (MIMO) with zero-forcing (ZF) alone or ZF with successive interference cancellation because severe inter-mode interference is caused by transmitting multiple streams from multiple UCAs in each mode. The effectiveness of the proposed method compared with the traditional method, which uses all OAM modes, is demonstrated in terms of the system capacity through computer simulations.
AB - This paper proposes an inter-mode interference suppression method that employs only even-numbered modes for uniform circular array (UCA)-based orbital angular momentum (OAM) multiplexing. Given that interference from adjacent OAM modes becomes severe when the beam axis is misaligned, the proposed method uses only the even-numbered modes while leaving the odd-numbered modes unused, which effectively prevents the inter-mode interference. Moreover, we verify the effectiveness of the proposed method by applying it to multiple-input and multiple-output (MIMO) with zero-forcing (ZF) alone or ZF with successive interference cancellation because severe inter-mode interference is caused by transmitting multiple streams from multiple UCAs in each mode. The effectiveness of the proposed method compared with the traditional method, which uses all OAM modes, is demonstrated in terms of the system capacity through computer simulations.
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U2 - 10.1109/GCWkshps45667.2019.9024598
DO - 10.1109/GCWkshps45667.2019.9024598
M3 - Conference contribution
AN - SCOPUS:85082300082
T3 - 2019 IEEE Globecom Workshops, GC Wkshps 2019 - Proceedings
BT - 2019 IEEE Globecom Workshops, GC Wkshps 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Globecom Workshops, GC Wkshps 2019
Y2 - 9 December 2019 through 13 December 2019
ER -