The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Kertas kerja ini mencadangkan penyahmetaan isyarat luar sempadan untuk penerima linear lelaran bantuan pengurangan kekisi dalam saluran MIMO yang terlebih beban. Walaupun penerima linear bantuan pengurangan kekisi kadangkala mengeluarkan isyarat keputusan keras yang tidak terkandung dalam buruj modulasi, penyahmetaan yang dicadangkan menukar isyarat keputusan keras tersebut kepada digit perduaan yang boleh dipetakan pada buruj modulasi. Walaupun penyahmetaan yang dicadangkan boleh dilaksanakan dengan hampir tiada kerumitan tambahan, penyahmetaan yang dicadangkan mencapai lebih banyak keuntungan apabila penerimaan linear diulang. Tambahan pula, kami menunjukkan bahawa prestasi penghantaran bergantung pada pemetaan bit dalam modulasi seperti pemetaan Kelabu dan pemetaan semula jadi. Prestasi penghantaran disahkan oleh simulasi komputer dalam sistem 6 × 2 MIMO, iaitu nisbah beban lampau sebanyak 3. Salah satu daripada pemetaan yang dicadangkan yang dipanggil "penyahmetaan modulo" mencapai keuntungan kira-kira 2 dB pada kadar ralat paket (PER) sebanyak 10-1 apabila 64QAM digunakan.
Takuya FUJIWARA
Okayama University
Satoshi DENNO
Okayama University
Yafei HOU
Okayama University
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Salinan
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
Salinan
@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},}
Salinan
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 -