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Ohta Mai

Faculty of Informatics　Department of Information and Communications EngineeringAssociate Professor

Degree

  • Mar. 2013
    Ph.D. in Engineering, The University of Electro-Communications

Affiliated academic society

  • IEICE
  • IEEE

Research Field

  • Informatics, Information networks

Paper

MISC

Lectures, oral presentations, etc.

  • On beam-pattern and nulls toward interferences in multiuser MIMO using null-space extension
    H. Ban; M. Taromaru; M. Ohta
    Technical Committee on Smart Radio (SR), (SmartCom2018), 31 Oct. 2018, The Institute of Electronics, Information and Communication Engineers
  • Relationship between interference-wave suppression using null-space extension in multiuser MIMO and formed beam-pattern
    H. Ban; M. Taromaru; M. Ohta
    Technical Committee on Radio Communication Systems (RCS), IEICE, 20 Jun. 2018, The Institute of Electronics, Information and Communication Engineers
  • A Study on Array Beam Pattern of Multi-User MIMO Basestation Using Null-Space Dimension Expansion: About Principle of Tolerance Improvement against Channel Fluctuation by Orthogonalizing the Past Interference Channels
    TAROMARU Makoto; BAN Hironori; OHTA Mai; MOTEGI Daisuke
    無線通信システム研究会, 09 Nov. 2017, The Institute of Electronics, Information and Communication Engineers (IEICE)
  • A Study on Beam Pattern of Array with Multi-User MIMO Using Null-Space Expansion Tolerant to Channel Fluctuation
    BAN Hironori; Daisuke Motegi; TAROMARU Makoto; OHTA Mai
    SmartCom2017, 24 Oct. 2017, Technical Committee of Smart Radio, The Institute of Electronics, Information and Communication Engineers (IEICE)
  • Spectrum Edge Decision Method for Energy Detection with FFT
    OHTA Mai; TAROMARU Makoto; FUJII Takeo; TAKYU Osamu
    IEEE ICOIN 2017, 12 Jan. 2017, IEEE
  • A study on energy detection with FFT in cognitive radio systems for improving detection performance
    Mai Ohta; Makoto Taromaru; Takeo Fujii; Osamu Takyu
    SR, 16 May 2016, IEICE
  • Novel Two-Stage Spectrum Sensing for Energy Detection with FFT
    Mai Ohta; Osamu Takyu; Takeo Fujii; Makoto Taromaru
    IEEE WCNC 2016 International Workshop on Smart Spectrum, 03 Apr. 2016, IEEE
  • A White-Space Width Estimation with Windowed FFT Based Energy Detection
    OHTA Mai; TAKYU Osamu; FUJII Takeo; TAROMARU Makoto
    2016 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, 07 Mar. 2016
  • Study on false alarm probability reduction method using FFT for spectrum sensing to unknown signals
    Mai Ohta; Makoto Taromaru; Takeo Fujii; Osamu Takyu
    SR, 21 Jan. 2016, IEICE
  • Highly Efficient Environment Aware Wireless Sensor Network
    Takeo Fujii; Shunsuke Takagi; Taiki Nakayama; Mai Ohta; Osamu Takyu
    IEEE CCNC 2016, 11 Jan. 2016, IEEE
  • Signal Bandwidth Estimation with Energy Detector Based on Windowed FFT for Cognitive Radio System
    Kensaku Tamayama; Mai Ohta; Makoto Taromaru
    The 6th International Conference on ICT Convergence, 28 Oct. 2015
  • An effect evaluation of leakage with windowed FFT based energy detection for narrowband signal detection
    Mai Ohta; Osamu Takyu; Takeo Fujii; Makoto Taromaru
    SR, 29 Jul. 2015, IEICE
  • Performance evaluation of a leakage suppression method for a bandwidth estimation based on energy detection with FFT
    Kensaku Tamayama; Mai Ohta; Osamu Takyu; Takeo Fujii; Makoto Taromaru
    SR, 01 May 2015, IEICE
  • 実環境を考慮したPS状態予測に基づく協調予測の検討
    NAKANISHI Ryota; OHTA Mai; TAROMARU Makoto
    電子情報通信学会 総合大会, 11 Mar. 2015
  • Spectrum sensing and channel utilization prediction by Nth-order Markov chain model
    Ryota Nakanishi; Mai Ohta; Makoto Taromaru
    IEEE WCNC 2015 International Workshop on Smart Spectrum, 09 Mar. 2015, IEEE
  • Transmission decision algorithm for updating sensing information
    OHTA Mai; TAKYU Osamu; FUJII Takeo; TAROMARU Makoto
    WInnComm-Europe 2014, 04 Nov. 2014
  • Prediction of Next ON/OFF State of Primary System by N-order Markov Chain
    Ryota Nakanishi; Mai Ohta; Makoto Taromaru
    SR, 30 Oct. 2014, IEICE
  • A Study on Undesired Spectrum Detection Method with FFT
    Ryota Higashi; Mai Ohta; Osamu Takyu; Takeo Fujii; Makoto Taromaru
    SR, 30 Oct. 2014, IEICE
  • Proposal of Time-Frequency 2D AGC using Analogue Transversal Filter: Fundamental Study on Tap Interval and Total Delay Time of Tapped Delay Line and Receiver Architecture
    M. Taromaru; N. Yamasaki; M. Ohta
    電子情報通信学会無線通信システム研究会, 17 Jun. 2014, The Institute of Electronics, Information and Communication Engineers (IEICE)
  • 協調センシングにおける自律的センシング情報伝送のための一検討
    NAKANISHI Ryota; OHTA Mai; TAROMARU Makoto; MADA Keisuke
    電子情報通信学会 総合大会, 18 Mar. 2014
  • Adaptive interval of information updating toward database for cognitive radio based on information reliability
    Osamu Takyu; Takeo Fujii
    IEICE Software Radio, 05 Mar. 2014
  • A study on repetition of information update based on reliability of database in cognitive radio
    OHTA Mai; TAROMARU Makoto; TAKYU Osamu; FUJII Takeo
    2014 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, 02 Mar. 2014

Award

  • 19 Mar. 2014
    IEICE, 平成25年度学術奨励賞

Research Themes