IEICE TRANSACTIONS on Communications
Asynchronous NOMA Downlink Based on Single-Carrier Frequency-Domain Equalization
Summary :
Non-orthogonal multiple access (NOMA) allows several users to multiplex in the power-domain to improve spectral efficiency. To further improve its performance, it is desirable to reduce inter-user interference (IUI). In this paper, we propose a downlink asynchronous NOMA (ANOMA) scheme applicable to frequency-selective channels. The proposed scheme introduces an intentional symbol offset between the multiplexed signals to reduce IUI, and it employs cyclic-prefixed single-carrier transmission with frequency-domain equalization (FDE) to reduce inter-symbol interference. We show that the mean square error for the FDE of the proposed ANOMA scheme is smaller than that of a conventional NOMA scheme. Simulation results show that the proposed ANOMA with appropriate power allocation achieves a better sum rate compared to the conventional NOMA.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E105-B No.10 pp.1173-1180
- Publication Date
- 2022/10/01
- Publicized
- 2022/04/06
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2021MEP0003
- Type of Manuscript
- Special Section PAPER (Special Section on Multidisciplinary and Innovative Key technologies in Advanced communication systems (MIKA))
- Category
Authors
Tomonari KURAYAMA
Ibaraki University
Teruyuki MIYAJIMA
Ibaraki University
Yoshiki SUGITANI
Ibaraki University
Keyword
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Tomonari KURAYAMA, Teruyuki MIYAJIMA, Yoshiki SUGITANI, "Asynchronous NOMA Downlink Based on Single-Carrier Frequency-Domain Equalization" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 10, pp. 1173-1180, October 2022, doi: 10.1587/transcom.2021MEP0003.
Abstract: Non-orthogonal multiple access (NOMA) allows several users to multiplex in the power-domain to improve spectral efficiency. To further improve its performance, it is desirable to reduce inter-user interference (IUI). In this paper, we propose a downlink asynchronous NOMA (ANOMA) scheme applicable to frequency-selective channels. The proposed scheme introduces an intentional symbol offset between the multiplexed signals to reduce IUI, and it employs cyclic-prefixed single-carrier transmission with frequency-domain equalization (FDE) to reduce inter-symbol interference. We show that the mean square error for the FDE of the proposed ANOMA scheme is smaller than that of a conventional NOMA scheme. Simulation results show that the proposed ANOMA with appropriate power allocation achieves a better sum rate compared to the conventional NOMA.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021MEP0003/_p
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@ARTICLE{e105-b_10_1173,
author={Tomonari KURAYAMA, Teruyuki MIYAJIMA, Yoshiki SUGITANI, },
journal={IEICE TRANSACTIONS on Communications},
title={Asynchronous NOMA Downlink Based on Single-Carrier Frequency-Domain Equalization},
year={2022},
volume={E105-B},
number={10},
pages={1173-1180},
abstract={Non-orthogonal multiple access (NOMA) allows several users to multiplex in the power-domain to improve spectral efficiency. To further improve its performance, it is desirable to reduce inter-user interference (IUI). In this paper, we propose a downlink asynchronous NOMA (ANOMA) scheme applicable to frequency-selective channels. The proposed scheme introduces an intentional symbol offset between the multiplexed signals to reduce IUI, and it employs cyclic-prefixed single-carrier transmission with frequency-domain equalization (FDE) to reduce inter-symbol interference. We show that the mean square error for the FDE of the proposed ANOMA scheme is smaller than that of a conventional NOMA scheme. Simulation results show that the proposed ANOMA with appropriate power allocation achieves a better sum rate compared to the conventional NOMA.},
keywords={},
doi={10.1587/transcom.2021MEP0003},
ISSN={1745-1345},
month={October},}
Copy
TY - JOUR
TI - Asynchronous NOMA Downlink Based on Single-Carrier Frequency-Domain Equalization
T2 - IEICE TRANSACTIONS on Communications
SP - 1173
EP - 1180
AU - Tomonari KURAYAMA
AU - Teruyuki MIYAJIMA
AU - Yoshiki SUGITANI
PY - 2022
DO - 10.1587/transcom.2021MEP0003
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2022
AB - Non-orthogonal multiple access (NOMA) allows several users to multiplex in the power-domain to improve spectral efficiency. To further improve its performance, it is desirable to reduce inter-user interference (IUI). In this paper, we propose a downlink asynchronous NOMA (ANOMA) scheme applicable to frequency-selective channels. The proposed scheme introduces an intentional symbol offset between the multiplexed signals to reduce IUI, and it employs cyclic-prefixed single-carrier transmission with frequency-domain equalization (FDE) to reduce inter-symbol interference. We show that the mean square error for the FDE of the proposed ANOMA scheme is smaller than that of a conventional NOMA scheme. Simulation results show that the proposed ANOMA with appropriate power allocation achieves a better sum rate compared to the conventional NOMA.
ER -
English
