Shibuya Tomoharu 澁谷智治

… Alternative Names

SHIBUYA Tomoharu 澁谷智治

澁谷智治シブヤトモハル

渋谷哲治シブヤテツハル

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Researcher Number	20262280
Other IDs
External Links
Affiliation (Current)	2025: 上智大学, 理工学部, 教授
Affiliation (based on the past Project Information) *help	2020 – 2023: 上智大学, 理工学部, 教授 2015 – 2017: 上智大学, 理工学部, 教授 2012 – 2014: 上智大学, 理工学部, 准教授 2008 – 2010: Sophia University, 理工学部, 准教授 2007: National Institute of Multimedia Education, 研究開発部, 准教授 … More 2006: 独立行政法人メディア教育開発センター, 研究開発部, 助教授 2004: 独立行政法人メディア教育開発センター, 研究開発部, 助教授 2003: メディア教育開発センター, 研究開発部, 助教授 2003: Tokyo Institute of Technology, National Institute of Multimedia Education, Associate Professor, メディア教育開発センター, 助教授 2000 – 2002: 東京工業大学, 大学院・理工学研究科, 助手 1998 – 1999: 東京工業大学, 工学部, 助手 1995 – 1996: 東京工業大学, 工学部, 助手 Less
Review Section/Research Field	Principal Investigator 情報通信工学 / Communication/Network engineering / Basic Section 60070:Information security-related / Theory of informatics Except Principal Investigator 情報通信工学
Keywords	Principal Investigator 誤り訂正符号 / LDPC符号 / 代数幾何符号 / 符号理論 / 非対話型マルチパーティ計算 / マルチパーティ計算 / 秘匿計算 / 反復復号 / sum-productアルゴリズム / 巡回符号 … More / Feng-Rao限界 / 一般化ハミング重み / 線形符号 / 機械学習 / シェアサイズ / シェア / 発展型k-しきい値秘密分散法 / ラグランジュ補間 / 発展型k-閾値秘密分散法 / 秘密分散法 / 秘密分散 / 符号化計算 / 対称群 / 群の作用 / 制約符号化 / ランク変調符号 / 置換行列 / 群論 / 支配集合 / 多重集合 / フラッシュメモリ / ランク変調 / 復号性能の解析 / 線形符号の符号化法 / 符号化法 / 復号法 / 復号 / ヤコビ法 / ＤＭ分解 / 線形連立方程式 / 符号化 / ＬＤＰＣ符号 / アルゴリズム / 計算量 / DM分解 / 線形符号の符号化 / リバーシブル符号 / 基本多面体 / LP復号 / 線形計画法 / 非正則LDPC符号 / 正則LDPC符号 / 復号誤り率 / 符号アンサンブル / 最尤復号 / SNR / 疑似符号語 / LP復号法 / 反復復号法 / 積符号 / パンクチャド符号 / 確率伝播アルゴリズム / Bethe近似 / 変分自由エネルギー / 最大事後確率復号 / タナーグラフ / concave-convex procedure / ベーテ近似 / 繰り返し復号 / 限界式 / 最小ハミング重み / 符号パラメーター / 誤り訂正符合 / 代数的符号理論 / 情報通信 / リード・マラー符号 / リード・ソロモン符号 / Order Bound / 符号パラメタ / 曲線属C_<ab> / BCH符号 … More Except Principal Investigator OFDM / フェージング / 移動体通信 / equalizer / fading / near-far problem / multiple access / multi-user / mobile communication / 等化器 / 遠近問題 / マルチプルアクセス / マルチユーザ / Fading compensation / Maximum likelihood estimation / Pilot symbol / Fading channel / Mobile communication / パイロット・シンボル / フェージング補償 / 最尤推定 / パイロットシンボル / neural network / inverse problem / blind image deconvolution / POCS / convex projection / nonexpansive mapping / fixed point / Hybrid steepest descent method / 連想記憶ニューラルネットワーク / ブラインド画像復元 / 凸制約一般化逆写像 / 集合論的信号推定 / 凸射影法 / 不動点集合 / 非拡大写像 / ハイブリッド最急降下法 / Fast Training / Neural Network / Lipschitz function / Dimension Reduction / Covering Test / Covering Method / Excluding Hypersphere / Global Optimization / 高速学習法 / ニューラルネットワーク / 多次元有限被覆判定 / 多次元リプシッツ関数 / 大域的最適化 Less

Research on development of non-interactive MPC capable of addition and deletion of parties and its application to machine learningPrincipal Investigator
- Principal Investigator
  
  澁谷智治
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60070:Information security-related
- Research Institution
  Sophia University
Research on efficient secret sharing method that can generate countably infinite number of shares and its application to secure ComputationPrincipal Investigator
- Principal Investigator
  
  Shibuya Tomoharu
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60070:Information security-related
- Research Institution
  Sophia University
Group theoretic approach to the design of codes suitable for flash memoriesPrincipal Investigator
- Principal Investigator
  
  SHIBUYA Tomoharu
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Theory of informatics
- Research Institution
  Sophia University
Study of new analyzing method of LDPC codes and there practical encoding algorithm based on mathematical techniques on the system of linear equationsPrincipal Investigator
- Principal Investigator
  
  SHIBUYA Tomoharu
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Communication/Network engineering
- Research Institution
  Sophia University
Study on the structure of fundamental polytope of linear codesPrincipal Investigator
- Principal Investigator
  
  SHIBUYA Tomoharu
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Communication/Network engineering
- Research Institution
  Sophia University
高SNR時にも優れた誤り訂正能力を示すLDPC符号化システムの研究Principal Investigator
- Principal Investigator
  
  澁谷智治
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Communication/Network engineering
- Research Institution
  National Institute of Multimedia Education
繰り返し復号に適した誤り訂正符号の代数的構成とその実用化に関する研究Principal Investigator
- Principal Investigator
  
  渋谷智治 (澁谷智治)
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  情報通信工学
- Research Institution
  National Institute of Multimedia Education
  Tokyo Institute of Technology
Improved OFDM-CDMA System coping with the Near-Far Problem
- Principal Investigator
  
  SAKANIWA Kohichi
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology
一般化ハミング重みの誤り訂正への応用に関する研究Principal Investigator
- Principal Investigator
  
  渋谷智治
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology
New Pilot-Symbol-Aided Estimation of Fading Channels in Mobile Communications
- Principal Investigator
  
  SAKANIWA Kohichi
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology
アフィン代数多様体上の符号の一般化ハミング重みに関する研究Principal Investigator
- Principal Investigator
  
  渋谷智治
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology
Optimization over the fixed point set of nonexpansive mapping and its application
- Principal Investigator
  
  YAMADA Isao
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology
Research on New Global Optimization by Excluding Hyperspheres and Its Applications
- Principal Investigator
  
  SAKANIWA Kohichi
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology
代数幾何符号の性能評価に関する研究Principal Investigator
- Principal Investigator
  
  渋谷智治
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  情報通信工学
- Research Institution
  Tokyo Institute of Technology

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All Journal Article Presentation Book

[Book] はじめて学ぶ情報通信2016
- Author(s)
  和保孝夫（編著），小川将克，高橋浩，萬代雅希，渋谷智治，林等，炭親良（共著
- Total Pages
  188
- Publisher
  コロナ社
- Data Source
  KAKENHI-PROJECT-15K00021
[Journal Article] Efficient Construction of Encoding Polynomials in a Distributed Coded Computing Scheme2024
- Author(s)
  HIBINO Daisuke、SHIBUYA Tomoharu
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E107.A Issue: 3 Pages: 476-485
- DOI
  10.1587/transfun.2023TAP0011
- ISSN
  0916-8508, 1745-1337
- Year and Date
  2024-03-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K11109
[Journal Article] On a Characterization of a State of Rank-Modulation Scheme Over Multi-Cell Ranking by a Group Action2017
- Author(s)
  Tomoharu Shibuya, Takeru Sudo
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E100.A Issue: 12 Pages: 2558-2571
- DOI
  10.1587/transfun.E100.A.2558
- NAID
  130006236451
- ISSN
  0916-8508, 1745-1337
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K00021
[Journal Article] Efficient Linear Time Encoding for LDPC Codes2014
- Author(s)
  T. Shibuya and K.Kobayashi
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E97.A Issue: 7 Pages: 1556-1567
- DOI
  10.1587/transfun.E97.A.1556
- NAID
  130004519183
- ISSN
  0916-8508, 1745-1337
- Language
  English
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24560477
[Journal Article] Efficient Linear Time Encoding for LDPC Codes2014
- Author(s)
  T. Shibuya and K. Kobayashi
- Journal Title
  
  IEICE Trans. Fundmentals
  
  Volume: E97-A
- NAID
  130004519183
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24560477
[Journal Article] Single Error Correcting Quantum Codes for the Amplitude Damping Channel Based on Classical Codes over <i>GF</i>(7)2014
- Author(s)
  K. Kodaira, M. Wada, and T. Shibuya
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E97.A Issue: 11 Pages: 2247-2253
- DOI
  10.1587/transfun.E97.A.2247
- NAID
  130004706377
- ISSN
  0916-8508, 1745-1337
- Language
  English
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24560477
[Journal Article] On the Dependence of Error Performance of Spatially Coupled LDPC Codes on Their Design Parameters2013
- Author(s)
  H. Ihara and T. Shibuya
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E96.A Issue: 12 Pages: 2447-2451
- DOI
  10.1587/transfun.E96.A.2447
- NAID
  130003385295
- ISSN
  0916-8508, 1745-1337
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24560477
[Journal Article] On the dependence of error performance of spatially coupled LDPC codes on their design parameters2013
- Author(s)
  Hiroyuki Ihara, Tomoharu Shibuya
- Journal Title
  
  IEICE Trans. on Fundamentals
  
  Volume: E96-A
- NAID
  130003385295
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24560477
[Journal Article] Encoding of Linear Codes Based on the Rearrangement of Block-Triangular Parity-Check Matrices2010
- Author(s)
  T.Shibuya
- Journal Title
  
  Technical Report of IEICE IT2010-45
  
  Pages: 69-74
- NAID
  110008106939
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] Characterization of Factor Graph by Mooij's Sufficient Condition for Convergence of the Sum-Product Algorithm2010
- Author(s)
  Tomoharu Shibuya
- Journal Title
  
  IEICE Trans.on Fundamentals
  
  Volume: Vol.E93-A Pages: 2083-2088
- NAID
  10027984787
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] On the Size of Circulant Matrices for which Reversible Codes Exist2010
- Author(s)
  T.Shibuya
- Journal Title
  
  Technical Report of IEICE IT-2009-94
  
  Pages: 147-151
- NAID
  110007999421
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] Characterization of Factor Graph by Mooij's Sufficient Condition for Convergence of the Sum-Product Algorithm2010
- Author(s)
  T.Shibuya
- Journal Title
  
  IEICE Transactions on Fundamentals vol.E93-A, no.11
  
  Pages: 2083-2088
- NAID
  10027984787
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] Sufficient Conditions for Convergence of the Sum-Product Decoding2009
- Author(s)
  T.Shibuya
- Journal Title
  
  Technical Report of IEICE IT2008-110
  
  Pages: 441-446
- NAID
  110007324350
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] Detailed Evolution of Degree Distributions in Residual Graphs with Joint Degree Distribution2008
- Author(s)
  T.Nozaki, K.Kasai, T.Shibuya, K.Sakaniwa
- Journal Title
  
  IEICE Transactions on Fundamentals vol.E91-A, no.11
  
  Pages: 2737-2744
- NAID
  10026852289
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] Detailed Evolution of Degree Distributions in Residual Graphs with Joint Degree Distributions2008
- Author(s)
  T. NOZAKI, K. KASAI, T. SHIBUYA, K. SAKANIWA
- Journal Title
  
  IEICE Trans. Fundamentals E91-A
  
  Pages: 2737-2744
- NAID
  10026852289
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560383
[Journal Article] Performance of Standard Irregular LDPC Codes under Maximum Likelihood Decoding2007
- Author(s)
  R.Ikegaya, K.Kasai, T.Shibuya, K.Sakaniwa
- Journal Title
  
  IEICE Trans. on Fundamentals Vol. E90-A, no.7(掲載予定)
- NAID
  110007538071
- Data Source
  KAKENHI-PROJECT-18760290
[Journal Article] Performance of Standard Irregular LDPC Codes under Maximum Likelihood Decoding2007
- Author(s)
  R. Ikegaya, K. Kasai, T. Shibuya, K. Sakaniwa
- Journal Title
  
  IEICE Trans. Fundamentals Vol.E90-A
  
  Pages: 1432-1443
- NAID
  110007538071
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18760290
[Journal Article] Iterative decoding based on concave-convex procedure2005
- Author(s)
  T.Shibuya
- Journal Title
  
  IEICE Trans. on Fundamentals E88-A. No.5(掲載予定)
- Data Source
  KAKENHI-PROJECT-14750279
[Journal Article] BP復号法に適した線形符号の設計2004
- Author(s)
  渋谷智治
- Journal Title
  
  京都大学数理解析研究所講究録1361「符号と暗号の代数的数理」
  
  Pages: 80-90
- Data Source
  KAKENHI-PROJECT-14750279
[Journal Article] CCCP decoding for binary linear codes2004
- Author(s)
  T.Shibuya
- Journal Title
  
  Proceedings of ISITA2004 (Parma, Italy)
  
  Pages: 1175-1180
- Data Source
  KAKENHI-PROJECT-14750279
[Presentation] Efficient composition of encoding polynomial in distributed coded computing scheme2023
- Author(s)
  Daisuke Hibino, Tomoharu Shibuya
- Organizer
  電子情報通信学会情報理論研究会
- Data Source
  KAKENHI-PROJECT-20K11819
[Presentation] 同一順位に複数のセルが属するランク変調符号の群論的な表現とその応用について2017
- Author(s)
  須藤　尊, 渋谷智治
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  大阪市立大学杉本キャンパス（大阪府・大阪市）
- Year and Date
  2017-01-19
- Data Source
  KAKENHI-PROJECT-15K00021
[Presentation] Analysis of Rank-Modulation Rewriting Codes by a Group Action2016
- Author(s)
  Tomoharu Shibuya, Takeru Sudo
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  小樽商科大学（北海道小樽市）
- Year and Date
  2016-05-20
- Data Source
  KAKENHI-PROJECT-15K00021
[Presentation] Analysis of Rank-Modulation Rewriting Codes by a Group Action2016
- Author(s)
  Tomoharu Shibuya, Takeru Sudo
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  小樽経済センター（北海道・小樽市）
- Year and Date
  2016-05-19
- Data Source
  KAKENHI-PROJECT-15K00021
[Presentation] Construction and Analysis of Rank-Modulation Rewriting Codes by the Group of Permutation Matrices2016
- Author(s)
  Tomoharu Shibuya, Takeru Sudo
- Organizer
  2016 International Symposium on Information Theory and Its Applications
- Place of Presentation
  Monterey (USA)
- Year and Date
  2016-10-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00021
[Presentation] Classical Codes over GF(q) for Mersenne Prime q and Their Application to Quantum Codes for the AD Channel2013
- Author(s)
  K. Kodaira and T. Shibuya
- Organizer
  第36回情報理論とその応用シンポジウム
- Place of Presentation
  静岡県伊東市
- Data Source
  KAKENHI-PROJECT-24560477
[Presentation] Compressed Encodingを利用したRank Modulationにおける極小支配集合とその構成2013
- Author(s)
  神林雄也, 渋谷智治
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  関西学院大学大阪梅田キャンパス
- Data Source
  KAKENHI-PROJECT-24560477
[Presentation] Generalization of Lu's Linear Time Encoding Algorithm for LDPC Codes2012
- Author(s)
  Kazuki Kobayashi, Tomoharu Shibuya
- Organizer
  2012 International Symposium on Information Theory and its Applications
- Place of Presentation
  Hawaii, USA
- Data Source
  KAKENHI-PROJECT-24560477
[Presentation] On the dependence of error performance of spatially coupled LDPC codes on their design parameters2012
- Author(s)
  Hiroyuki Ihara, Tomoharu Shibuya
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  豊田工業大学
- Data Source
  KAKENHI-PROJECT-24560477
[Presentation] 代数的符号理論2012
- Author(s)
  渋谷智治
- Organizer
  誤り訂正符号のワークショップ
- Place of Presentation
  草津セミナーハウス
- Invited
- Data Source
  KAKENHI-PROJECT-24560477
[Presentation] Encoding of Linear Codes Based on the Rearrangement of Block-Triangular Parity-Check Matrices2010
- Author(s)
  T.Shibuya
- Organizer
  電子情報通信学会情報理論研究
- Place of Presentation
  東北学院大学(宮城県多賀城市)
- Year and Date
  2010-09-22
- Data Source
  KAKENHI-PROJECT-20560383
[Presentation] On the Size of Circulant Matrices for which Reversible Codes Exist2010
- Author(s)
  T.Shibuya
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  信州大学(長野県長野市)
- Year and Date
  2010-03-04
- Data Source
  KAKENHI-PROJECT-20560383
[Presentation] On the Size of Circulant Matrices for which Reversible Codes Exist2010
- Author(s)
  澁谷智治
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  長野県長野市・信州大学
- Year and Date
  2010-03-04
- Data Source
  KAKENHI-PROJECT-20560383
[Presentation] Encoding of Linear Codes Based on the Rearrangement of Block-Triangularized Parity-Check Matrices2010
- Author(s)
  Tomoharu Shibuya
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  宮城県,東北学院大学
- Year and Date
  2010-09-22
- Data Source
  KAKENHI-PROJECT-20560383
[Presentation] Sufficient Conditions for Convergence of the Sum-Product Decoding2009
- Author(s)
  澁谷智治
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  はこだて未来大学
- Year and Date
  2009-03-10
- Data Source
  KAKENHI-PROJECT-20560383
[Presentation] Sufficient Conditions for Convergence of the Sum-Product Decoding2009
- Author(s)
  T.Shibuya
- Organizer
  電子情報通信学会情報理論研究会
- Place of Presentation
  公立はこだて未来大学(北海道函館市)
- Year and Date
  2009-03-10
- Data Source
  KAKENHI-PROJECT-20560383
[Presentation] Tight Bounds of Minimum Distance Distributions of Irregular LDPC Code Ensembles2007
- Author(s)
  S. Miyamoto, K. Kasai, T. Shibuya, K. Sakaniwa
- Organizer
  The 2007 International Symposium on Information Theory (ISIT2007)
- Place of Presentation
  NIME, France
- Data Source
  KAKENHI-PROJECT-18760290
[Presentation] On the Condition on Classical Codes to Construct Quantum Error Correcting Codes for Amplitude Damping Channel
- Author(s)
  K. Kodaira and T. Shibuya
- Organizer
  ISITA2014
- Place of Presentation
  Melbourne Convention & Exhibition Center (Australia)
- Year and Date
  2014-10-26 – 2014-10-29
- Data Source
  KAKENHI-PROJECT-24560477
[Presentation] Entanglement-Assisted Quantum Error-Correcting Codes Based on the Circulant Permutation Matrix
- Author(s)
  M. Wada, K. Kodaira, and T. Shibuya
- Organizer
  ISITA2014
- Place of Presentation
  Melbourne Convention & Exhibition Center (Australia)
- Year and Date
  2014-10-26 – 2014-10-29
- Data Source
  KAKENHI-PROJECT-24560477

1. SAKANIWA Kohichi (30114870)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
2. YAMADA Isao (50230446)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
3. HASEGAWA Hiroshi (40323802)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Shibuya Tomoharu 澁谷 智治

SHIBUYA Tomoharu 澁谷 智治

澁谷 智治 シブヤ トモハル

渋谷 哲治 シブヤ テツハル

Research Projects

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Co-Researchers

Research on development of non-interactive MPC capable of addition and deletion of parties and its application to machine learningPrincipal Investigator

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Research on efficient secret sharing method that can generate countably infinite number of shares and its application to secure ComputationPrincipal Investigator

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Group theoretic approach to the design of codes suitable for flash memoriesPrincipal Investigator

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Study of new analyzing method of LDPC codes and there practical encoding algorithm based on mathematical techniques on the system of linear equationsPrincipal Investigator

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Study on the structure of fundamental polytope of linear codesPrincipal Investigator

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高SNR時にも優れた誤り訂正能力を示すLDPC符号化システムの研究Principal Investigator

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繰り返し復号に適した誤り訂正符号の代数的構成とその実用化に関する研究Principal Investigator

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Improved OFDM-CDMA System coping with the Near-Far Problem

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一般化ハミング重みの誤り訂正への応用に関する研究Principal Investigator

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New Pilot-Symbol-Aided Estimation of Fading Channels in Mobile Communications

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アフィン代数多様体上の符号の一般化ハミング重みに関する研究Principal Investigator

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Optimization over the fixed point set of nonexpansive mapping and its application

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Research on New Global Optimization by Excluding Hyperspheres and Its Applications

Shibuya Tomoharu 澁谷智治

SHIBUYA Tomoharu 澁谷智治

澁谷智治シブヤトモハル

渋谷哲治シブヤテツハル