論文 - 中井 彩乃
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Ordinary Differential Equation-Based MIMO Signal Detection 査読あり
Ayano Nakai-Kasai, Tadashi Wadayama
IEEE Transactions on Signal Processing 72 4147 - 4162 2024年09月
担当区分:筆頭著者 掲載種別:研究論文(学術雑誌) 出版者・発行元:Institute of Electrical and Electronics Engineers (IEEE)
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MZI-based optical circuit for MIMO signal detector immune to fabrication errors 査読あり
T. Nishiyama, T. Wadayama, A. Nakai-Kasai
International Symposium on Information Theory and Its Applications (ISITA 2024) 2024年11月
掲載種別:研究論文(国際会議プロシーディングス)
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Continuous-time sparse signal recovery 査読あり
T. Wadayama, A. Nakai-Kasai
IEEE Access 12 118141 - 118153 2024年08月
掲載種別:研究論文(学術雑誌)
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Deep unfolding-assisted fully decentralized projected gradient MIMO detection algorithm 査読あり
M. Kumagai, T. Wadayama, A. Nakai-Kasai
IEEE International Conference on Communications (ICC 2024) 2024年06月
掲載種別:研究論文(国際会議プロシーディングス)
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PSOR-Jacobi algorithm for accelerated MMSE MIMO detection 査読あり
A. Mizukoshi, A. Nakai-Kasai, T. Wadayama
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E107-A ( 3 ) 486 - 492 2024年03月
掲載種別:研究論文(学術雑誌)
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Precoder optimization using data correlation for wireless data aggregation 査読あり
A. Nakai-Kasai, N. Hayashi, T. Wadayama
IEICE Transactions on Communications E107-B ( 3 ) 330 - 338 2024年03月
担当区分:筆頭著者 掲載種別:研究論文(学術雑誌)
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Deep unfolding-based distributed MIMO detection 査読あり
M. Kumagai, A. Nakai-Kasai, T. Wadayama
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2023) 2023年10月
掲載種別:研究論文(国際会議プロシーディングス)
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Gradient flow decoding for LDPC codes 査読あり
T. Wadayama, K. Nakajima, A. Nakai-Kasai
International Symposium on Topics in Coding (ISTC 2023) 2023年09月
掲載種別:研究論文(国際会議プロシーディングス)
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Precoder design for correlated data aggregation via over-the-air computation in sensor networks 査読あり
Ayano Nakai-Kasai and T. Wadayama
IEEE Global Communications Conference (GLOBECOM 2022) Workshop Program 2022年12月
担当区分:筆頭著者 掲載種別:研究論文(国際会議プロシーディングス)
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MMSE signal detection for MIMO systems based on ordinary differential equation 査読あり
Ayano Nakai-Kasai and T. Wadayama
IEEE Global Communications Conference (GLOBECOM 2022) 2022年12月
担当区分:筆頭著者 掲載種別:研究論文(国際会議プロシーディングス)
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Ordinary differential equation-based sparse signal recovery 査読あり
T. Wadayama, A. Nakai-Kasai
International Symposium on Information Theory and Its Applications (ISITA 2022) 14 - 18 2022年10月
掲載種別:研究論文(国際会議プロシーディングス)
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PSOR-Jacobi algorithm for accelerated MMSE MIMO detection 査読あり
A. Mizukoshi, A. Nakai-Kasai, T. Wadayama
International Symposium on Information Theory and Its Applications (ISITA 2022) 133 - 137 2022年10月
掲載種別:研究論文(国際会議プロシーディングス)
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Continuous-time noisy average consensus system as Gaussian multiple access channel 査読あり
Tadashi Wadayama, Ayano Nakai-Kasai
IEEE International Symposium on Information Theory (ISIT2022) 2022年06月
掲載種別:研究論文(国際会議プロシーディングス)
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Nested aggregation of experts using inducing points for approximated Gaussian process regression 査読あり
Ayano Nakai-Kasai, Toshiyuki Tanaka
Machine Learning 111 ( 5 ) 1671 - 1694 2022年05月
担当区分:筆頭著者 記述言語:英語 掲載種別:研究論文(学術雑誌) 出版者・発行元:Springer Science and Business Media LLC
DOI: 10.1007/s10994-021-06101-8
その他リンク: https://link.springer.com/article/10.1007/s10994-021-06101-8/fulltext.html
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An Acceleration Method of Sparse Diffusion LMS based on Message Propagation. 査読あり
Ayano Nakai-Kasai, Kazunori Hayashi
IEICE Transactions on Communications 104-B ( 2 ) 141 - 148 2021年02月
掲載種別:研究論文(学術雑誌)
その他リンク: https://dblp.uni-trier.de/db/journals/ieicetb/ieicetb104.html#Nakai-KasaiH21
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An Overloaded IoT Signal Detection Method using Non-convex Sparse Regularizers. 査読あり
Kazunori Hayashi, Ayano Nakai-Kasai, Atsuya Hirayama, Hiroki Honda, Tetsuya Sasaki, Hideki Yasukawa, Ryo Hayakawa
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2020) 1490 - 1496 2020年12月
掲載種別:研究論文(国際会議プロシーディングス) 出版者・発行元:IEEE
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Optimal Combination Weight for Sparse Diffusion Least-Mean-Square based on Consensus Propagation. 査読あり
Ayano Nakai-Kasai, Kazunori Hayashi
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2020) 228 - 235 2020年12月
掲載種別:研究論文(国際会議プロシーディングス) 出版者・発行元:IEEE
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Discreteness and group sparsity aware detection for uplink overloaded MU-MIMO systems
Ryo Hayakawa, Ayano Nakai-Kasai, Kazunori Hayashi
APSIPA Transactions on Signal and Information Processing 9 2020年10月
掲載種別:研究論文(学術雑誌) 出版者・発行元:Cambridge University Press (CUP)
This paper proposes signal detection methods for frequency domain equalization (FDE) based overloaded multiuser multiple input multiple output (MU-MIMO) systems for uplink Internet of things (IoT) environments, where a lot of IoT terminals are served by a base station having less number of antennas than that of IoT terminals. By using the fact that the transmitted signal vector has the discreteness and the group sparsity, we propose a convex discreteness and group sparsity aware (DGS) optimization problem for the signal detection. We provide an optimization algorithm for the DGS optimization on the basis of the alternating direction method of multipliers (ADMM). Moreover, we extend the DGS optimization into weighted DGS (W-DGS) optimization and propose an iterative approach named iterative weighted DGS (IW-DGS), where we iteratively solve the W-DGS optimization problem with the update of the parameters in the objective function. We also discuss the computational complexity of the proposed IW-DGS and show that we can reduce the order of the complexity by using the structure of the channel matrix. Simulation results show that the symbol error rate (SER) performance of the proposed method is close to that of the oracle zero forcing (ZF) method, which perfectly knows the activity of each IoT terminal.
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Diffusion LMS based on message passing algorithm 査読あり
IEEE Access 7 ( 1 ) 47022 - 47033 2019年04月
記述言語:英語 掲載種別:研究論文(学術雑誌)
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An Overloaded SC-CP IoT Signal Detection Method via Sparse Complex Discrete-Valued Vector Reconstruction. 査読あり
Kazunori Hayashi, Ayano Nakai-Kasai, Ryo Hayakawa
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2019) 1473 - 1478 2019年
掲載種別:研究論文(国際会議プロシーディングス) 出版者・発行元:IEEE
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Diffusion strategies based on consensus propagation 査読あり
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2018) ( TU-A1-9.15 ) 2018年11月
記述言語:英語 掲載種別:研究論文(研究会,シンポジウム資料等)
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An adaptive combination rule for diffusion LMS based on consensus propagation 査読あり
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2018) 3839 - 3843 2018年04月
記述言語:英語 掲載種別:研究論文(国際会議プロシーディングス)
DOI: 10.1109/ICASSP.2018.8462277
その他リンク: https://dblp.uni-trier.de/db/conf/icassp/icassp2018.html#NakaiH18
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Uplink Overloaded MU-MIMO OFDM Signal Detection Methods using Convex Optimization. 査読あり
Kazunori Hayashi, Ayano Nakai, Ryo Hayakawa, Sangseok Ha
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2018) 1421 - 1427 2018年
記述言語:英語 掲載種別:研究論文(国際会議プロシーディングス)
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Distributed Approximate Message Passing with Summation Propagation. 査読あり
Ryo Hayakawa, Ayano Nakai, Kazunori Hayashi
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2018) 4104 - 4108 2018年
記述言語:英語 掲載種別:研究論文(国際会議プロシーディングス)
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Diffusion LMS using consensus propagation 査読あり
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2017) 943 - 948 2017年12月
記述言語:英語 掲載種別:研究論文(国際会議プロシーディングス)
DOI: 10.1109/APSIPA.2017.8282158
その他リンク: https://dblp.uni-trier.de/db/conf/apsipa/apsipa2017.html#NakaiH17