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Signal Quality Improvement in Downlink Power Domain NOMA with Blind Nonlinear Compensator and Frequency Domain Equalizer
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Summary :
The non-orthogonal multiple access (NOMA) approach has been developed in the fifth-generation mobile communication systems (5G) and beyond, to improve the spectrum efficiency and accommodate a large number of IoT devices. Although power domain NOMA is a promising candidate, it is vulnerable to the nonlinearity of RF circuits and cannot achieve high-throughput transmission using high-level modulations in nonlinear environments. This study proposes a novel post-reception nonlinear compensation scheme consisting of two blind nonlinear compensators (BNLCs) and a frequency-domain equalizer (FDE) to reduce the effect of nonlinear distortion. The improvement possible with the proposed scheme is evaluated by using the error vector magnitude (EVM) of the received signal, which is obtained through computer simulations. The simulation results confirm that the proposed scheme can effectively improve the quality of the received downlink power-domain NOMA signal and enable high-throughput transmission under the transmitter (Tx) and receiver (Rx) nonlinearities via a frequency-selective fading channel.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E105-B No.5 pp.648-656
- Publication Date
- 2022/05/01
- Publicized
- 2021/12/01
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2021EBT0003
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Jun NAGAI
The University of Electro-Communications
Koji ISHIBASHI
The University of Electro-Communications
Yasushi YAMAO
The University of Electro-Communications
Keyword
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Jun NAGAI, Koji ISHIBASHI, Yasushi YAMAO, "Signal Quality Improvement in Downlink Power Domain NOMA with Blind Nonlinear Compensator and Frequency Domain Equalizer" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 5, pp. 648-656, May 2022, doi: 10.1587/transcom.2021EBT0003.
Abstract: The non-orthogonal multiple access (NOMA) approach has been developed in the fifth-generation mobile communication systems (5G) and beyond, to improve the spectrum efficiency and accommodate a large number of IoT devices. Although power domain NOMA is a promising candidate, it is vulnerable to the nonlinearity of RF circuits and cannot achieve high-throughput transmission using high-level modulations in nonlinear environments. This study proposes a novel post-reception nonlinear compensation scheme consisting of two blind nonlinear compensators (BNLCs) and a frequency-domain equalizer (FDE) to reduce the effect of nonlinear distortion. The improvement possible with the proposed scheme is evaluated by using the error vector magnitude (EVM) of the received signal, which is obtained through computer simulations. The simulation results confirm that the proposed scheme can effectively improve the quality of the received downlink power-domain NOMA signal and enable high-throughput transmission under the transmitter (Tx) and receiver (Rx) nonlinearities via a frequency-selective fading channel.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021EBT0003/_p
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@ARTICLE{e105-b_5_648,
author={Jun NAGAI, Koji ISHIBASHI, Yasushi YAMAO, },
journal={IEICE TRANSACTIONS on Communications},
title={Signal Quality Improvement in Downlink Power Domain NOMA with Blind Nonlinear Compensator and Frequency Domain Equalizer},
year={2022},
volume={E105-B},
number={5},
pages={648-656},
abstract={The non-orthogonal multiple access (NOMA) approach has been developed in the fifth-generation mobile communication systems (5G) and beyond, to improve the spectrum efficiency and accommodate a large number of IoT devices. Although power domain NOMA is a promising candidate, it is vulnerable to the nonlinearity of RF circuits and cannot achieve high-throughput transmission using high-level modulations in nonlinear environments. This study proposes a novel post-reception nonlinear compensation scheme consisting of two blind nonlinear compensators (BNLCs) and a frequency-domain equalizer (FDE) to reduce the effect of nonlinear distortion. The improvement possible with the proposed scheme is evaluated by using the error vector magnitude (EVM) of the received signal, which is obtained through computer simulations. The simulation results confirm that the proposed scheme can effectively improve the quality of the received downlink power-domain NOMA signal and enable high-throughput transmission under the transmitter (Tx) and receiver (Rx) nonlinearities via a frequency-selective fading channel.},
keywords={},
doi={10.1587/transcom.2021EBT0003},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - Signal Quality Improvement in Downlink Power Domain NOMA with Blind Nonlinear Compensator and Frequency Domain Equalizer
T2 - IEICE TRANSACTIONS on Communications
SP - 648
EP - 656
AU - Jun NAGAI
AU - Koji ISHIBASHI
AU - Yasushi YAMAO
PY - 2022
DO - 10.1587/transcom.2021EBT0003
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2022
AB - The non-orthogonal multiple access (NOMA) approach has been developed in the fifth-generation mobile communication systems (5G) and beyond, to improve the spectrum efficiency and accommodate a large number of IoT devices. Although power domain NOMA is a promising candidate, it is vulnerable to the nonlinearity of RF circuits and cannot achieve high-throughput transmission using high-level modulations in nonlinear environments. This study proposes a novel post-reception nonlinear compensation scheme consisting of two blind nonlinear compensators (BNLCs) and a frequency-domain equalizer (FDE) to reduce the effect of nonlinear distortion. The improvement possible with the proposed scheme is evaluated by using the error vector magnitude (EVM) of the received signal, which is obtained through computer simulations. The simulation results confirm that the proposed scheme can effectively improve the quality of the received downlink power-domain NOMA signal and enable high-throughput transmission under the transmitter (Tx) and receiver (Rx) nonlinearities via a frequency-selective fading channel.
ER -
English
