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
아날로그 부분에서는 고전력 빔을 선택하고 디지털 부분에서는 CMA(Constant Modulus Algorithm)와 같은 블라인드 알고리즘을 사용하는 다중빔 MIMO(Massive Multiple-Input Multiple-Output) 구성이 제안되었다. CMA에는 채널 상태 정보가 필요하지 않습니다. 그러나 진폭이 변화하는 직교 진폭 변조 신호에 최소자승 CMA(LS-CMA)를 적용하면 변조 차수가 증가함에 따라 간섭 제거 효과가 감소합니다. 본 논문에서는 LS-CMA를 대체할 블라인드 적응 알고리즘으로 최속강하형 CMA의 스텝 크기를 수정하는 가변 스텝 크기 기반 CMA(VS-CMA)를 제안한다. VS-CMA의 기본 성능, 간섭 제거 성공 여부, 다중빔 대규모 MIMO 전송 효율성을 시뮬레이션을 통해 검증하고, 특히 데이터 스무딩 크기가 작은 경우 독립 구성 요소 분석과 같은 다른 블라인드 알고리즘과 비교합니다.
Kentaro NISHIMORI
Niigata University
Kazuki MARUTA
Tokyo University of Science
Takefumi HIRAGURI
Nippon Institute of Technology
Hidehisa SHIOMI
Osaka University
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Kentaro NISHIMORI, Kazuki MARUTA, Takefumi HIRAGURI, Hidehisa SHIOMI, "Fast-Converging Constant Modulus Algorithm with Variable Step Size for Multibeam Massive MIMO" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 10, pp. 1154-1161, October 2022, doi: 10.1587/transcom.2021MEP0002.
Abstract: Multibeam massive multiple-input multiple-output (MIMO) configuration has been proposed that selects high-power beams in an analog part and uses a blind algorithm, such as the constant-modulus algorithm (CMA), in the digital part. The CMA does not require channel state information. However, when least-squares CMA (LS-CMA) is applied to a quadrature amplitude modulation signal whose amplitude changes, the interference cancellation effect decreases as the modulation order increases. In this paper, a variable-step-size-based CMA (VS-CMA), which modifies the step size of the steepest-descent CMA, is proposed as a blind adaptive algorithm to replace LS-CMA. The basic performance of VS-CMA, its success in cancelling interference, and its effectiveness in multibeam massive MIMO transmission are verified via simulation and compared with other blind algorithms such as independent component analysis, particularly when the data smoothing size is small.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021MEP0002/_p
부
@ARTICLE{e105-b_10_1154,
author={Kentaro NISHIMORI, Kazuki MARUTA, Takefumi HIRAGURI, Hidehisa SHIOMI, },
journal={IEICE TRANSACTIONS on Communications},
title={Fast-Converging Constant Modulus Algorithm with Variable Step Size for Multibeam Massive MIMO},
year={2022},
volume={E105-B},
number={10},
pages={1154-1161},
abstract={Multibeam massive multiple-input multiple-output (MIMO) configuration has been proposed that selects high-power beams in an analog part and uses a blind algorithm, such as the constant-modulus algorithm (CMA), in the digital part. The CMA does not require channel state information. However, when least-squares CMA (LS-CMA) is applied to a quadrature amplitude modulation signal whose amplitude changes, the interference cancellation effect decreases as the modulation order increases. In this paper, a variable-step-size-based CMA (VS-CMA), which modifies the step size of the steepest-descent CMA, is proposed as a blind adaptive algorithm to replace LS-CMA. The basic performance of VS-CMA, its success in cancelling interference, and its effectiveness in multibeam massive MIMO transmission are verified via simulation and compared with other blind algorithms such as independent component analysis, particularly when the data smoothing size is small.},
keywords={},
doi={10.1587/transcom.2021MEP0002},
ISSN={1745-1345},
month={October},}
부
TY - JOUR
TI - Fast-Converging Constant Modulus Algorithm with Variable Step Size for Multibeam Massive MIMO
T2 - IEICE TRANSACTIONS on Communications
SP - 1154
EP - 1161
AU - Kentaro NISHIMORI
AU - Kazuki MARUTA
AU - Takefumi HIRAGURI
AU - Hidehisa SHIOMI
PY - 2022
DO - 10.1587/transcom.2021MEP0002
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2022
AB - Multibeam massive multiple-input multiple-output (MIMO) configuration has been proposed that selects high-power beams in an analog part and uses a blind algorithm, such as the constant-modulus algorithm (CMA), in the digital part. The CMA does not require channel state information. However, when least-squares CMA (LS-CMA) is applied to a quadrature amplitude modulation signal whose amplitude changes, the interference cancellation effect decreases as the modulation order increases. In this paper, a variable-step-size-based CMA (VS-CMA), which modifies the step size of the steepest-descent CMA, is proposed as a blind adaptive algorithm to replace LS-CMA. The basic performance of VS-CMA, its success in cancelling interference, and its effectiveness in multibeam massive MIMO transmission are verified via simulation and compared with other blind algorithms such as independent component analysis, particularly when the data smoothing size is small.
ER -