IEICE TRANSACTIONS on Communications
Out-of-Bound Signal Demapping for Lattice Reduction-Aided Iterative Linear Receivers in Overloaded MIMO Systems
Summary :
This paper proposes out-of-bound signal demapping for lattice reduction-aided iterative linear receivers in overloaded MIMO channels. While lattice reduction aided linear receivers sometimes output hard-decision signals that are not contained in the modulation constellation, the proposed demapping converts those hard-decision signals into binary digits that can be mapped onto the modulation constellation. Even though the proposed demapping can be implemented with almost no additional complexity, the proposed demapping achieves more gain as the linear reception is iterated. Furthermore, we show that the transmission performance depends on bit mapping in modulations such as the Gray mapping and the natural mapping. The transmission performance is confirmed by computer simulation in a 6 × 2 MIMO system, i.e., the overloading ratio of 3. One of the proposed demapping called “modulo demapping” attains a gain of about 2 dB at the packet error rate (PER) of 10-1 when the 64QAM is applied.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E104-B No.8 pp.974-982
- Publication Date
- 2021/08/01
- Publicized
- 2021/02/15
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2020EBP3180
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Takuya FUJIWARA
Okayama University
Satoshi DENNO
Okayama University
Yafei HOU
Okayama University
Keyword
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Takuya FUJIWARA, Satoshi DENNO, Yafei HOU, "Out-of-Bound Signal Demapping for Lattice Reduction-Aided Iterative Linear Receivers in Overloaded MIMO Systems" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 8, pp. 974-982, August 2021, doi: 10.1587/transcom.2020EBP3180.
Abstract: This paper proposes out-of-bound signal demapping for lattice reduction-aided iterative linear receivers in overloaded MIMO channels. While lattice reduction aided linear receivers sometimes output hard-decision signals that are not contained in the modulation constellation, the proposed demapping converts those hard-decision signals into binary digits that can be mapped onto the modulation constellation. Even though the proposed demapping can be implemented with almost no additional complexity, the proposed demapping achieves more gain as the linear reception is iterated. Furthermore, we show that the transmission performance depends on bit mapping in modulations such as the Gray mapping and the natural mapping. The transmission performance is confirmed by computer simulation in a 6 × 2 MIMO system, i.e., the overloading ratio of 3. One of the proposed demapping called “modulo demapping” attains a gain of about 2 dB at the packet error rate (PER) of 10-1 when the 64QAM is applied.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020EBP3180/_p
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@ARTICLE{e104-b_8_974,
author={Takuya FUJIWARA, Satoshi DENNO, Yafei HOU, },
journal={IEICE TRANSACTIONS on Communications},
title={Out-of-Bound Signal Demapping for Lattice Reduction-Aided Iterative Linear Receivers in Overloaded MIMO Systems},
year={2021},
volume={E104-B},
number={8},
pages={974-982},
abstract={This paper proposes out-of-bound signal demapping for lattice reduction-aided iterative linear receivers in overloaded MIMO channels. While lattice reduction aided linear receivers sometimes output hard-decision signals that are not contained in the modulation constellation, the proposed demapping converts those hard-decision signals into binary digits that can be mapped onto the modulation constellation. Even though the proposed demapping can be implemented with almost no additional complexity, the proposed demapping achieves more gain as the linear reception is iterated. Furthermore, we show that the transmission performance depends on bit mapping in modulations such as the Gray mapping and the natural mapping. The transmission performance is confirmed by computer simulation in a 6 × 2 MIMO system, i.e., the overloading ratio of 3. One of the proposed demapping called “modulo demapping” attains a gain of about 2 dB at the packet error rate (PER) of 10-1 when the 64QAM is applied.},
keywords={},
doi={10.1587/transcom.2020EBP3180},
ISSN={1745-1345},
month={August},}
Copy
TY - JOUR
TI - Out-of-Bound Signal Demapping for Lattice Reduction-Aided Iterative Linear Receivers in Overloaded MIMO Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 974
EP - 982
AU - Takuya FUJIWARA
AU - Satoshi DENNO
AU - Yafei HOU
PY - 2021
DO - 10.1587/transcom.2020EBP3180
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2021
AB - This paper proposes out-of-bound signal demapping for lattice reduction-aided iterative linear receivers in overloaded MIMO channels. While lattice reduction aided linear receivers sometimes output hard-decision signals that are not contained in the modulation constellation, the proposed demapping converts those hard-decision signals into binary digits that can be mapped onto the modulation constellation. Even though the proposed demapping can be implemented with almost no additional complexity, the proposed demapping achieves more gain as the linear reception is iterated. Furthermore, we show that the transmission performance depends on bit mapping in modulations such as the Gray mapping and the natural mapping. The transmission performance is confirmed by computer simulation in a 6 × 2 MIMO system, i.e., the overloading ratio of 3. One of the proposed demapping called “modulo demapping” attains a gain of about 2 dB at the packet error rate (PER) of 10-1 when the 64QAM is applied.
ER -
English
