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Precoded Physical Layer Network Coding with Coded Modulation in MIMO-OFDM Bi-Directional Wireless Relay Systems
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Summary :
This paper proposes coded modulation for physical layer network coding in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) bi-directional wireless relay systems where precoding is applied. The proposed coded modulation enables the relays to decode the received signals, which improves the transmission performance. Soft input decoding for the proposed coded modulation is proposed. Furthermore, we propose two precoder weight optimization techniques, called “per subcarrier weight optimization” and “total weight optimization”. This paper shows a precoder configuration based on the optimization with the lattice reduction or the sorted QR-decomposition. The performance of the proposed network coding is evaluated by computer simulation in a MIMO-OFDM two-hop wireless relay system with the 16 quadrature amplitude modulation (QAM) or the 256QAM. The proposed coded modulation attains a coding gain of about 2dB at the BER of 10-4. The total weight optimization achieves about 1dB better BER performance than the other at the BER of 10-4.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E104-B No.1 pp.99-108
- Publication Date
- 2021/01/01
- Publicized
- 2020/07/14
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2020EBP3045
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Satoshi DENNO
Okayama University
Kazuma YAMAMOTO
Okayama University
Yafei HOU
Okayama University
Keyword
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Satoshi DENNO, Kazuma YAMAMOTO, Yafei HOU, "Precoded Physical Layer Network Coding with Coded Modulation in MIMO-OFDM Bi-Directional Wireless Relay Systems" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 1, pp. 99-108, January 2021, doi: 10.1587/transcom.2020EBP3045.
Abstract: This paper proposes coded modulation for physical layer network coding in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) bi-directional wireless relay systems where precoding is applied. The proposed coded modulation enables the relays to decode the received signals, which improves the transmission performance. Soft input decoding for the proposed coded modulation is proposed. Furthermore, we propose two precoder weight optimization techniques, called “per subcarrier weight optimization” and “total weight optimization”. This paper shows a precoder configuration based on the optimization with the lattice reduction or the sorted QR-decomposition. The performance of the proposed network coding is evaluated by computer simulation in a MIMO-OFDM two-hop wireless relay system with the 16 quadrature amplitude modulation (QAM) or the 256QAM. The proposed coded modulation attains a coding gain of about 2dB at the BER of 10-4. The total weight optimization achieves about 1dB better BER performance than the other at the BER of 10-4.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020EBP3045/_p
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@ARTICLE{e104-b_1_99,
author={Satoshi DENNO, Kazuma YAMAMOTO, Yafei HOU, },
journal={IEICE TRANSACTIONS on Communications},
title={Precoded Physical Layer Network Coding with Coded Modulation in MIMO-OFDM Bi-Directional Wireless Relay Systems},
year={2021},
volume={E104-B},
number={1},
pages={99-108},
abstract={This paper proposes coded modulation for physical layer network coding in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) bi-directional wireless relay systems where precoding is applied. The proposed coded modulation enables the relays to decode the received signals, which improves the transmission performance. Soft input decoding for the proposed coded modulation is proposed. Furthermore, we propose two precoder weight optimization techniques, called “per subcarrier weight optimization” and “total weight optimization”. This paper shows a precoder configuration based on the optimization with the lattice reduction or the sorted QR-decomposition. The performance of the proposed network coding is evaluated by computer simulation in a MIMO-OFDM two-hop wireless relay system with the 16 quadrature amplitude modulation (QAM) or the 256QAM. The proposed coded modulation attains a coding gain of about 2dB at the BER of 10-4. The total weight optimization achieves about 1dB better BER performance than the other at the BER of 10-4.},
keywords={},
doi={10.1587/transcom.2020EBP3045},
ISSN={1745-1345},
month={January},}
Copy
TY - JOUR
TI - Precoded Physical Layer Network Coding with Coded Modulation in MIMO-OFDM Bi-Directional Wireless Relay Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 99
EP - 108
AU - Satoshi DENNO
AU - Kazuma YAMAMOTO
AU - Yafei HOU
PY - 2021
DO - 10.1587/transcom.2020EBP3045
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2021
AB - This paper proposes coded modulation for physical layer network coding in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) bi-directional wireless relay systems where precoding is applied. The proposed coded modulation enables the relays to decode the received signals, which improves the transmission performance. Soft input decoding for the proposed coded modulation is proposed. Furthermore, we propose two precoder weight optimization techniques, called “per subcarrier weight optimization” and “total weight optimization”. This paper shows a precoder configuration based on the optimization with the lattice reduction or the sorted QR-decomposition. The performance of the proposed network coding is evaluated by computer simulation in a MIMO-OFDM two-hop wireless relay system with the 16 quadrature amplitude modulation (QAM) or the 256QAM. The proposed coded modulation attains a coding gain of about 2dB at the BER of 10-4. The total weight optimization achieves about 1dB better BER performance than the other at the BER of 10-4.
ER -
English
