Kazuki Maruta, Ph.D.

News


2019/11/21

Research grant proposal was accepted by Artificial Intelligence Research Promotion Foundation.


2019/11/07

Received APCC2019 Best Paper Award.

    • K. Shimada, M. Takahashi, K. Maruta, C-J. Ahn, “Channel Ranking based Spread Code Optimization for Visible Light Communication OFDM-IDMA Systems,


2019/10/24

Journal paper (letter) has been accepted on IEICE Communications Express.

    • K. Senoo, T. Akao, K. Maruta, T. Sugiyama, C-J. Ahn, “Operational Range Increasement for STPA-BAA Spectrum Superposing Using Subcarrier Modulation Adaptation”


2019/10/05

Journal paper has been accepted on IEEE Access (Impact Factor: 4.098).

    • S. Kojima, K. Maruta, C-J. Ahn, “Adaptive Modulation and Coding using Neural Network based SNR Estimation,”


2019/09/24

Conference papers have been accepted on IEEE Consumer Communications & Networking Conference.

    • D. Hisano, K. Maruta, Y. Nakayama, “Low Cost C-RAN and Fronthaul Design with WDM-PON and Multi-hopping Wireless Link,”
    • Y. Nakayama, D. Hisano, T. Tsutsumi, K. Maruta, “Novel C-RAN Architecture with PON based Midhaul and Wireless Relay Fronthaul,”


2019/09/01

Conference papers have been accepted on The 25th Asia-Pacific Conference on Communications (APCC).

    • K. Ito, K. Maruta, C-J. Ahn, “Outage Probability Analysis of MF Precoded Massive MIMO with Multi-antenna User Environment,”
    • K. Shima, K. Senoo, K. Goto, K. Maruta, C-J. Ahn, “Data-aided SMI Algorithm using Common Correlation Matrix for Adaptive Array Interference Suppression,”
    • K. Matsubara, S. Kuroki, K. Maruta, C-J. Ahn, “Modified HTRCI with Time-domain CSI Separation for Pilot De-contamination,”
    • K. Motosugi, K. Yonei, K. Maruta, C-J. Ahn, “Fast Fading Compensation by Frame Spliting and Decision Directed Channel Extrapolation for OFDM,”
    • K. Shimada, M. Takahashi, K. Maruta, C-J. Ahn, “Channel Ranking based Spread Code Optimization for Visible Light Communication OFDM-IDMA Systems,”
    • N. Tanuma, R. Marumo, K. Maruta, C-J. Ahn, “Known Bits Puncturing for Systematic Polar Codes,”


2019/08/21

Conference papers have been accepted on the 2019 International Conference on Advanced Technologies for Communications (ATC).

    • S. Kuroki, K. Matsubara, K. Maruta, C-J. Ahn, “Modified HTRCI with Variable Pulse Generation for Pilot De-contamination,”
    • T. Omura, N. Hoeur, K. Maruta, C-J. Ahn, “Improving ANN based Channel Identification and Compensation using GRNN Method under Fast Fading Environment,”
    • M. Takahashi, K. Shimada, K. Maruta, C-J. Ahn, “Throughput Improvement Using Code Length Optimization for VLC-OFDM/IDMA,”
    • R. Marumo, N. Tanuma, K. Maruta, C-J. Ahn, “Throughput Improvement of Systematic Polar Coded MIMO-OFDM by Puncturing,”


2019/07/24

Conference papers have been accepted on IEEE 90th Vehicular Technology Conference (VTC-Fall).

    • K. Maruta, C-J. Ahn, “Enhanced Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems for Multi Modulus Signals,”
    • Y. Nakayama, K. Maruta, “Adaptive C-RAN Architecture for Smart City with Crowdsourced Radio Units Mounted on Parked Vehicles,”
    • Y. Nakayama, D. Hisano, T. Nishio, K. Maruta, “Experimental Results on Crowdsourced Radio Units Mounted on Parked Vehicles,”

2019/07/02

Journal paper (letter) has been accepted on IEICE Communications Express.

    • T. Omura, S. Kojima, K. Maruta, C-J. Ahn, “Neural Network based Channel Identification and Compensation,”


2019/07/01

著書を出版します.


2019/05/17

Journal paper has been accepted on IET Microwaves, Antennas & Propagation (Impact Factor: 2.036 ).

    • K. Maruta, C-J. Ahn, “Stabilized Blind Interference Suppression of Constant Modulus-based Adaptive Array over Rayleigh Fading Channels by Initial Antenna Selection,”


2019/04/30

6月5日,大阪大学 数理・データ科学セミナー 数理モデルセミナーシリーズ にて講演します.

    • “無線信号の統計量に基づくブラインド型アダプティブアレー干渉抑圧”


2019/03/19

Journal paper (letter) has been accepted on ICT Express.

    • K. Watanabe, S. Kojima, T. Akao, M. Katsuno, K. Maruta, C-J. Ahn, “Modified Pilot Selection for Channel Estimation of Systematic Polar Coded MIMO-OFDM,”


2019/03/18

Journal paper has been accepted on Journal of Signal Processing.

    • S. Kojima, K. Maruta, C-J. Ahn, “Joint Adaptive Modulation and Transmit Power Control on Frequency Symbol Spreading OFDM Mobile Relay System,”


2019/03/03

Journal paper (letter) has been accepted on ICT Express.

    • T. Akao, K. Watanabe, S. Kojima, M. Katsuno, K. Maruta, C-J. Ahn, “Reducing Channel Spatial Correlation by Rotating Planar Antenna Array,”


2019/02/18

発表予定です.

■2019年3月19日@2019年電子情報通信学会総合大会

      • 丸田一輝, 安昌俊, “マルチセルMassive MIMOにおけるセミブラインドMMA及びMMSE-SMIによる多値信号適用時の動作改善,”

■2019年3月14日@情報処理学会全国大会

      • 丸田一輝, 中山悠, 田中健, 安永遼真, 菅宣理, 本田一暁, 久野大介, 安昌俊, “ビークルセルネットワークの無線フロントホールにおけるビーム追従法,”

■2019年3月6日@電子情報通信学会RCS研究会

      • 丸田一輝, 西森健太郎, 中山悠, 安昌俊, “時間領域シンボル拡散を用いたブラインド型アダプティブアレー ”

■2019年2月28日@革新的無線通信技術に関する横断型研究会(MIKA)技術交流会

      • 丸田一輝, 小島駿, 中山悠, 久野大介, 安昌俊, “無線信号の可視化情報を用いた機械学習による干渉推定 ”


2019/02/10

Conference paper has been accepted on International ITG Workshop on Smart Antennas (WSA).

    • K. Nishimori, K. Maruta, T. Hiraguri, "Blind Adaptive Array by Constant Modulus with Variable Step Size for Multi-beam Massive MIMO",


2019/02/04

Conference paper has been accepted on IEEE International Conference on Communications (ICC).

    • Y. Nakayama, D. Hisano, R. Yasunaga, K. Maruta, "Adaptive Network Architecture with Moving Nodes Towards Beyond 5G Era",


2019/01/28

Journal paper has been accepted on IEICE Transactions on Communications, Special Section Technology Trials and Proof-of-Concept Activities for 5G and Beyond”.

    • K. Maruta, C-J. Ahn, “Improving Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems: A Beamspace Approach,”


2018/12/22

Conference paper has been accepted on PerCom 2019 Work In Progress (WiP) Session.

    • Y. Nakayama, K. Honda, D. Hisano, K. Maruta, “Adaptive C-RAN Architecture for Smart City using Crowdsourced Radio Units,”


2018/11/17

Journal paper has been accepted on Journal of Communications Software and Systems .

    • S. Kojima, K. Maruta, C-J. Ahn, “Throughput Maximization by Adaptive Switching with Modulation Coding Scheme and Frequency Symbol Spreading,”


2018/09/25

Adopted for the Mazda Foundation research grant.


2018/09/14

Conference papers have been accepted on 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2018).

    • T. Akao, K. Watanabe, S. Kojima, M. Katsuno, K. Maruta, C-J. Ahn, “Reducing Channel Spatial Correlation by Rotating Planar Antenna Array,”
    • K. Watanabe, S. Kojima, T. Akao, M. Katsuno, K. Maruta, C-J. Ahn, “Modified Pilot Selection for Systematic Polar Coded MIMO-OFDM Channel Estimation,”


2018/09/13

Journal paper has been accepted on IEIE Transactions on Smart Processing and Computing.

    • K. Tezuka, S. Taroda, S. Higuchi, K. Maruta, C-J. Ahn, “Variable Channel Threshold-Based Hybrid AF-DF Cooperative Communications with Packet Splitting,”


2018/08/28

Journal paper has been accepted on Big Data and Cognitive Computing.


2018/08/18

Journal paper has been accepted on Entropy.


2018/08/02

International conference papers have been accepted on The 18th International Symposium on Communications and Information Technologies (ISCIT 2018)

    • K. Maruta, K. Nishimori, C-J. Ahn, “Constant Modulus and Kurtosis based Blind Adaptive Array Interference Suppression: Comparisons and New Approach,”
    • T. Omura, S. Kojima, K. Maruta, C-J. Ahn, “Neural Network based Channel Identification and Compensation,”
    • K. Senoo, T. Akao, K. Maruta, C-J. Ahn, “Improvement and Expansion of Operational Range for STPA-BAA Spectrum Superposing Scheme Using Subcarrier Adaptive Modulation,”
    • K. Yonei, K. Watanabe, K. Maruta, C-J. Ahn, “Iterative Channel Estimation with Polar Codes for Short Block Transmission,”
    • K. Goto, T. Akao, K. Maruta, C-J. Ahn, “Reduced Complexity Direction-of-Arrival Estimation for 2D Planar Massive Arrays: A Separation Approach,”


2018/7/30

Journal paper has been accepted on IEEE Transactions on Communications.


2018/7/28

International conference papers have been accepted on International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2018).

    • S. Kojima, T. Akao, K. Watanabe, M. Katsuno, K. Maruta, C-J. Ahn, “Adaptive Switching Method with AMC and FSS,”


2018/7/23

International conference papers have been accepted on 2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC).

    • K. Honda, R. Yasunaga, Y. Nakayama, K. Maruta, T. Tsutsumi, “Dynamic Mobile Network Architecture Organized by Drivers Decision Making,”
    • K. Maruta, Y. Nakayama, K. Honda, D. Hisano, C-J. Ahn, “V2P Connectivity on Higher Frequency Band and CoMP Based Coverage Expansion,”


2018/7/15

International conference papers have been accepted on 2018 IEEE Global Telecommunications Conference (GLOBECOM).

    • D. Hisano, Y. Nakayama, K. Maruta, A. Maruta, “Deployment Design of Functional Split Base Station in Fixed and Wireless Multihop Fronthaul,”


2018/6/28

International conference papers have been accepted on 2018 IEEE International Workshop on Electromagnetics:Applications and Student Innovation Competition (iWEM).

    • S. Ogawa, K. Nishimori, R. Taniguchi, K. Maruta, T. Hiraguri, “Multi-beam Massive MIMO Using Robust ICA,”


2018/6/4

Journal paper has been accepted on IEEE Access.

    • Y. Nakayama, K. Maruta, T. Tsutsumi, K. Sezaki, “Optically Backhauled Moving Network for Local Trains: Architecture and Scheduling,“ IEEE Access.


2018/5/14

International conference papers have been accepted on ICCE 2018.

    • S. Taroda, C-J. Ahn, K. Maruta, “Transmit Power Imbalance Reduction Method and Nonlinear Companding Transform for Beamforming OFDM Systems,”
    • S. Higuchi, C-J. Ahn, K. Maruta, “Efficient Channel Column Sorting Method Based on Householder Transformation for QRM-MLD,”