Ibaraki University's
Graduate School of Science and Engineering (Engineering)
Department of Computer and Information Sciences

顔写真
Professor

HABUCHI Hiromasa


Other affiliation / position

  1. Graduate School of Science and Engineering (Engineering) Department of Computer and Information Sciences Professor
  2. Center for Information Technology

Academic background

  1. Saitama University Faculty of Engineering 電気工学科 1987
  2. Saitama University Graduate School, Division of Science and Engineering 生産情報科学 1992 Completed

Academic degrees

  1. 博士(学術) Saitama University
  2. 工学修士 Saitama University

Current state of research and teaching activities

Studies on Communication Theory and Systems

Research Areas

  1. Information and Communication Engineering

Research keywords

  1. Modulation and Demodulation, Access Control Scheme, Synchronization, Wireless Communications, Optilcal Wireless Communications, Broadcasting, Intelligent Transport System, Home Networks

Subject of research

  1. Study on M-ary Orthogonal Modulation Systems The synchronization methods for code-shit-keying(CSK) and the design of non-orthogonal sequences for performance improvement are investigated. Moreover, and the combination of the access control scheme and CSK are evaluated.
  2. Study on Spread Spectrum Communication Systems The enhanced schemes of the delay locked loop (DLL), the design of spreading codes, and the capacity of code division multiple access (CDMA) are investigated.
  3. Study on Ultra Wide-Band Communications The digital pulse modulation, pulse design and constructions, and the synchronization systems are investigated. 2002-Present
  4. Study on Optical Communication Systems The spreading code design and the modulation schemes for optical wireless communicaitons are investigated in the presence of scintillation and noise.
  5. A Study of communication protocol for ITS The error contol scheme for location based local broadcasting systems is investigated. 2002-Present
  6. A Study on Acquisition Systems and Tracking Systems The acquisition systems and tracking systems are investigated. In particular, the delay locked loop system is considerd.
  7. A Study on Wireless Networks The throughput improvement of wireless networks is considers. In particular, access control schemes suitable for the various wireless networks are investigated.

Proposed theme of joint or funded research

  1. A study on communicarion schemes for ITS (キーワード) Vehicle-to-Vehicle communications, Road-to-Vehicle coomunications, Hierarchy modulations, Error control schemes Technical consultation
  2. A study on Spread-Spectrum communication systems (キーワード) Spreading codes, Pseudo-noise sequences, Modulation schemes, Synchronization, Acquisition, Tracking, Access Contol Scheme Technical consultation
  3. A study on theoretical analysis method for optical wireless communications (キーワード) Intensity modulation, Scintillation, Opt-electrotransforming, Multiple access scheme Technical consultation

Papers

  1. Research paper (international conference proceedings) Frame Error Detection Performance of Optical-Wireless Advanced Framed-DOOK System Yuto Asano, Hiromasa Habuchi, and Yusuke Kozawa Proceedings of International Conference on Signal Processing and Communication Systems ICSPCS2018 2018/12/17
  2. Research paper (international conference proceedings) Joint Proposal of Optical Wireless Turbo Coded System with Hybrid PPM-OOK Signalling Run Sun, Hiromasa Habuchi, and Yusuke Kozawa Proceedings of International Conference on Signal Processing and Communication Systems ICSPCS2018 2018/12/17
  3. Research paper (scientific journal) Joint Theoretical Analysis on Bit Error Rate of Visible-Light Variable N-parallel Code-Shift-Keying Keisuke Osawa, Hiromasa Habuchi, and Yusuke Kozawa IEICE Transaction on Fundamentals IEICE E101-A/ 12, 2352-2358 2018/12/01
  4. Research paper (international conference proceedings) Joint Enhanced On-demand WSN in terms of MC-CDMA with MPOMS Yutaka Imaizumi, Hiromasa Habuchi, and Yusuke Kozawa Proceedings of IEEE International Symposium on Intelligent Signal Processing and Communication Systems IEEE ISPACS2018, 102-106 2018/11/28
  5. Research paper (international conference proceedings) Joint BER Performance Impaired by Transmission Time Offset Between Users in Optical Wireless CSK/ACDMA System Using DMPOMs Takashi Tokunaga, Hiromasa Habuchi, Yusuke Kozawa, and Ran Sun Proceedings of IEEE 7th Global Conference of Consumer Electronics IEEE GCCE/ 2018 2018/10/12

Research presentations

  1. Oral presentation(general) オンオフ信号形式型M系列を用いる光PPMのビット誤り率 電子情報通信学会東京支部学生会研究発表会 2007/03/03
  2. Oral presentation(general) MCS/SSを用いたPull型パケット補間法のブロッキング確率 電子情報通信学会東京支部学生会研究発表会 2006/03/04

Prizes

  1. 活動功労賞 2011/09/14
  2. 感謝状 2011/05/30
  3. 編集活動感謝状 2009/09/16
  4. 編集活動感謝状 2007/12/14
  5. YRP賞 2007/10/25

Alloted class

  1. Information Literacy
  2. Advanced Communication Systems
  3. Scholarly Information Literacy
  4. Communications Theory

Memberships of academic societies

  1. The Institute of Electrical and Electronics Engineers, Inc.
  2. The Institute of Electronics, Information and Communication Engineers
  3. 信号処理学会 2014/03/01-Present
  4. 情報理論とその応用学会 1998/04/01-2011/05/31

Committee Career

  1. The Institute of Electrical and Electronics Engineers, Inc. Treasure of IEEE Japan chapter 2019/01/01-Present
  2. The Institute of Electrical and Electronics Engineers, Inc. Treasure of IEEE Tokyo Section 2019/01/01-Present
  3. The Institute of Electronics, Information and Communication Engineers 東京支部 次期支部長 2018/05-2019/05
  4. The Institute of Electronics, Information and Communication Engineers ワイドバンドシステム研究専門委員会 顧問 2016/05-Present
  5. The Institute of Electronics, Information and Communication Engineers 情報通信基礎サブソサイエティ 委員長 2015/05-2016/05