TY - GEN
T1 - Performance Analysis of OAM Multiplexing Employing SC-FDE in the Presence of Ground Reflection
AU - Suganuma, Hirofumi
AU - Saito, Shuhei
AU - Ogawa, Kayo
AU - Maehara, Fumiaki
N1 - Funding Information:
This work was supported by a Research Grant from the Telecommunications Advancement Foundation.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/12
Y1 - 2020/12
N2 - This paper presents the theoretical system capacity of orbital angular momentum (OAM) multiplexing that employs single-carrier with frequency domain equalization (SC-FDE) in the presence of ground reflection. Considering that inter-symbol interference (ISI) remains even after inserting a guard interval (GI), in addition to inter-mode interference (IMI), we derive the effect of such residual IMI and ISI, and incorporate their impacts into the analysis of the system capacity. Moreover, in FDE, zeroforcing (ZF) and minimum mean square error (MMSE) are considered as the factors affecting the system capacity because the effect of noise enhancement differs among these two factors. In this study, we demonstrate theoretical results based on the tworay ground reflection model by using parameters of link distance and carrier frequency. The numerical results show that OAM multiplexing employing SC-FDE improves the system capacity compared with the case without FDE regardless of the link distance, and its effectiveness is remarkable in the cases of relatively lower carrier frequencies.
AB - This paper presents the theoretical system capacity of orbital angular momentum (OAM) multiplexing that employs single-carrier with frequency domain equalization (SC-FDE) in the presence of ground reflection. Considering that inter-symbol interference (ISI) remains even after inserting a guard interval (GI), in addition to inter-mode interference (IMI), we derive the effect of such residual IMI and ISI, and incorporate their impacts into the analysis of the system capacity. Moreover, in FDE, zeroforcing (ZF) and minimum mean square error (MMSE) are considered as the factors affecting the system capacity because the effect of noise enhancement differs among these two factors. In this study, we demonstrate theoretical results based on the tworay ground reflection model by using parameters of link distance and carrier frequency. The numerical results show that OAM multiplexing employing SC-FDE improves the system capacity compared with the case without FDE regardless of the link distance, and its effectiveness is remarkable in the cases of relatively lower carrier frequencies.
KW - Orbital angular momentum (OAM)
KW - ground reflection
KW - mode multiplexing
KW - single-carrier with frequency domain equalization (SC-FDE)
KW - system capacity
KW - uniform circular array (UCA)
UR - http://www.scopus.com/inward/record.url?scp=85102948866&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85102948866&partnerID=8YFLogxK
U2 - 10.1109/GCWkshps50303.2020.9367560
DO - 10.1109/GCWkshps50303.2020.9367560
M3 - Conference contribution
AN - SCOPUS:85102948866
T3 - 2020 IEEE Globecom Workshops, GC Wkshps 2020 - Proceedings
BT - 2020 IEEE Globecom Workshops, GC Wkshps 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Globecom Workshops, GC Wkshps 2020
Y2 - 7 December 2020 through 11 December 2020
ER -