@book{CTT100611021, author = {坂庭好一 and 澁谷 智治}, title = {代数系と符号理論入門}, publisher = {コロナ社 牛来真也}, year = 2010, } @book{CTT100546949, author = {東京工業大学全学情報科目実施委員会編 and 澁谷智治}, title = {「コンピュータリテラシ」情報環境の使い方}, publisher = {昭晃堂}, year = 2001, } @book{CTT100426235, author = {坂庭好一 and 鈴木博 and 荒木純道 and 酒井善則 and 渋谷智治}, title = {ディジタルコミュニケーション (J.G. Proakis著)}, publisher = {科学技術出版}, year = 1999, } @book{CTT100414725, author = {T. Shibuya and J. Mizutani and K. Sakaniwa}, title = {On Generalized Hamming Weights of Codes Constructed on Affine Algebraic Sets(共著)}, publisher = {Springer Lecture Notes in Computer Science}, year = 1997, } @article{CTT100471922, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Cyclic Codes Suitable for an Iterative Decoding Based on the Sum-Product Algorithm}, journal = { Proc. of the International Conference on Fundamentals of Electronics, Communications and Computer Sciences }, year = 2002, } @article{CTT100471945, author = {Masatoshi Onikubo and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {On lower bounds for the minimum distance of LDPC codes constructed by combinatorial design}, journal = {Technical Report of IEICE}, year = 2002, } @article{CTT100471934, author = {Tomoharu Shibuya and Masatoshi Onikubo and Kohichi Sakaniwa}, title = {On tightness of Tanner's lower bound for the minimum distance of regular LDPC codes}, journal = {Proc. of ISITA2002}, year = 2002, } @article{CTT100471949, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Factor Graphs for Cyclic Codes with No Cycles of Length Four}, journal = {Proc. of 24th SITA}, year = 2001, } @article{CTT100583538, author = {Takayuki Nozaki and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Detailed Evolution of Degree Distributions in Residual Graphs with Joint Degree Distributions}, journal = {IEICE Transactions on Fundamentals}, year = 2008, } @article{CTT100552895, author = {Takayuki Itsui and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Average Bit Erasure Probability of Regular LDPC Code Ensembles under MAP Decoding over BEC}, journal = {IEICE Transactions on Fundamentals}, year = 2007, } @article{CTT100552894, author = {Ryoji Ikegaya and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Performance of Standard Irregular LDPC Codes under Maximum Likelihood Decoding}, journal = {IEICE Transactions on Fundamentals}, year = 2007, } @article{CTT100552892, author = {Shin'ya Miyamoto and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Sufficient Conditions for a Regular LDPC Code Better than an Irregular LDPC Code}, journal = {IEICE Transactions on Fundamentals}, year = 2007, } @article{CTT100626768, author = {Ryoji Ikegaya and Kenta Kasai and Yuji Shimoyama and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Weight and Stopping Set Distributions of Two-Edge Type LDPC Code Ensembles}, journal = {IEICE Transactions on Fundamentals}, year = 2005, } @article{CTT100626769, author = {Ryoji Ikegaya and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Asymptotic Weight and Stopping Set Distributions for Detailedly Represented Irregular LDPC Code Ensembles}, journal = {IEICE Transactions on Fundamentals}, year = 2004, } @article{CTT100626770, author = {Kenta kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Detailedly Represented Irregular Low-Density Parity-Check Codes}, journal = {IEICE Transactions on Fundamentals}, year = 2003, } @article{CTT100456443, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {A note on a lower bound for generalized Hamming weights}, journal = {Technical Report of IEICE}, year = 2001, } @article{CTT100456444, author = {大石将邦 and 松本隆太郎 and 渋谷智治 and 坂庭好一}, title = {高次の座を用いた代数幾何符号の構成法について}, journal = {信学技報}, year = 2001, } @article{CTT100456445, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {A note on a lower bound for generalized Hamming weights}, journal = {IEICE Trans. on Fundamentals}, year = 2001, } @article{CTT100456447, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {A dual of well-behaving type designed minimum distance}, journal = {IEICE Trans. on Fundamentals}, year = 2001, } @article{CTT100455919, author = {TOMOHARU SHIBUYA}, title = {On the generalized Hamming weights of cyclic codes}, journal = {Proc. of the Fourth Conference on Algebraic Geometry, Number Theory, Coding Theory and Cryptography}, year = 2000, } @article{CTT100439817, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {A Dual of Well-Behaving Type Designed Minimum Distance}, journal = {Proc. of ISIT 2000}, year = 2000, } @article{CTT100439816, author = {Tomoharu Shibuya and Kohichi Sakaniwa}, title = {On the generalized Hamming weights of cyclic codes}, journal = {Proc. of 23rd SITA}, year = 2000, } @article{CTT100426229, author = {T. Shibuya and K. Sakaniwa}, title = {Generator Matrix Oriented Well-Behaving Bound for the MinimumDistance}, journal = {Proc. of 22nd SITA}, year = 1999, } @article{CTT100455921, author = {TOMOHARU SHIBUYA}, title = {Application of Algebraic Geometry to Coding Theory}, journal = {Proc. of ISAAC 1999}, year = 1999, } @article{CTT100426203, author = {T. Shibuya and R. Hasegawa and K. Sakaniwa}, title = {A Lower Bound for Generalized Hamming Weights and Condition for t-th Randk MDS}, journal = {IEICE Trans. on Fundamentals}, year = 1999, } @article{CTT100426226, author = {T. Shibuya and J. Mizutani and K. Sakaniwa}, title = {On the Generalized Hamming Weight of Codes Constructed on Affine Algebraic Sets}, journal = {IEICE Trans. on Fundamentals}, year = 1998, } @article{CTT100426228, author = {TOMOHARU SHIBUYA}, title = {Lower Bound on Generalized Hamming Weights in Terms of a Notion of Well-behaving}, journal = {Proc. of ISIT'98}, year = 1998, } @article{CTT100426230, author = {TOMOHARU SHIBUYA}, title = {The condition on t-th rank MDS for binary Reed-Muller codes}, journal = {信学技法}, year = 1998, } @article{CTT100426227, author = {T. Shibuya and R. Hasegawa and K. Sakaniwa}, title = {On Generalized Hamming Weight of Linear Codes and a Sufficient Condition of t-th Rank MDS Codes}, journal = {Proc. of ISITA'98}, year = 1998, } @article{CTT100414834, author = {越智俊輔 and 渋谷智治 and 山田功 and 坂庭好一}, title = {MAPアルゴリズムの並列処理によるTurbo-Codeの高速復号法(共著)}, journal = {電子情報通信学会信学技報}, year = 1998, } @article{CTT100414727, author = {T. Shibuya and J. Mizutani and K. Sakaniwa}, title = {On the Comparison of Lower Bounds for Generalized Hamming Weights}, journal = {Proc. of TJCOM '98}, year = 1998, } @article{CTT100414724, author = {TOMOHARU SHIBUYA}, title = {An Improved Bound for the Dimension of Subfield Subcodes(共著)}, journal = {IEICE Transactions on Fundamentals}, year = 1997, } @article{CTT100414833, author = {T. Shibuya and J. Mizutani and K. Sakaniwa}, title = {On Lower Bound of Generalized Hamming Weights for codes on Cab(共著)}, journal = {Proc. of 20th SITA}, year = 1997, } @article{CTT100414835, author = {T. Shibuya and R. Matsumoto, K and Sakaniwa}, title = {Simple Estimation for the Dimension of Subfield Subcodes of AG codes}, journal = {IEICE Transactions on Fundamentals}, year = 1997, } @article{CTT100426231, author = {澁谷智治}, title = {MAPアルゴリズムの並列処理によるTurbo-Codeの高速復号法}, journal = {信学技報}, year = 1997, } @article{CTT100456695, author = {Tomoharu Shibuya and Jiro Mizutani and Kohichi Sakaniwa}, title = {Lower bounds for generalized Hamming weights of linear codes on affine algebraic varieties}, journal = {信学技報}, year = 1997, } @article{CTT100456696, author = {越智俊輔 and 渋谷智治 and 坂庭好一}, title = {並列型復号器を用いた反復復号に関する一考察}, journal = {第20回情報理論とその応用シンポジウム予稿集}, year = 1997, } @article{CTT100456697, author = {渋谷智治 and 水谷二郎 and 坂庭好一}, title = {アフィン代数多様体上の線形符号の一般化ハミング重みについて}, journal = {電子情報通信学会総合大会講演論文集}, year = 1997, } @article{CTT100456663, author = {金子明敏 and 元古一成 and 渋谷智治 and 山田功 and 坂庭好一}, title = {言語の文構造を用いた誤り制御について}, journal = {電子情報通信学会総合大会講演論文集}, year = 1996, } @article{CTT100414726, author = {TOMOHARU SHIBUYA}, title = {On the Simple Estimation for the Dimension of Subfield Subcodes(共著)}, journal = {Proc. of ISITA'96}, year = 1996, } @article{CTT100414723, author = {Tomoharu Shibuya and Ryutaroh Matsumoto and Kohichi Sakaniwa}, title = {An improved lower bound for the dimension of subfield subcodes of AG codes}, journal = {Proc. of Second Shanghai Conference on Designs, Codes and Finite Geometries}, year = 1996, } @article{CTT100414722, author = {TOMOHARU SHIBUYA}, title = {On the Dimension of Subfield Subcodes of AG Codes}, journal = {Proceedings of the 1996 IEICE General Conference}, year = 1996, } @article{CTT100414720, author = {Tomoharu Shibuya and Hajime Jinushi and Shinji Miura and Kohichi Sakaniwa}, title = {On the Performance of Algebrsic Geometric Codes}, journal = {IEICE Transactions on Fundamentals of Electronics,Communications and Computers}, year = 1996, } @article{CTT100414721, author = {TOMOHARU SHIBUYA}, title = {On the Dimension of Subfield Subcodes of AG Codes}, journal = {The Proceedings of the 18th Symposium on Information Theory and Its Applications}, year = 1995, } @article{CTT100414718, author = {TOMOHARU SHIBUYA}, title = {On Designed Distance of Algebraic Geometric Codes(共著)}, journal = {Technical Report of IEICE}, year = 1994, } @article{CTT100414717, author = {TOMOHARU SHIBUYA}, title = {On Designed Distance of Algebraic Geometric Codes(共著)}, journal = {Proceedings of International Symposium on Information Theory & Its Application 1994}, year = 1994, } @article{CTT100456604, author = {小林鉄太郎 and 渋谷智治 and 地主創 and 坂庭好一}, title = {拡大一般リード・マラー符号のリー距離について}, journal = {第17回情報理論とその応用シンポジウム予稿集}, year = 1994, } @article{CTT100414716, author = {TOMOHARU SHIBUYA}, title = {On the Performance of Algebraic Geometric Codes(共著)}, journal = {The Proceedings of The 17th Symposium on Information Theory and Its Applications}, year = 1994, } @article{CTT100414719, author = {Tomoharu Shibuya and Hajime Junushi and Kohichi Sakaniwa}, title = {On minimum Lee distance of generalized Reed-Muller code}, journal = {Proceeding of IEEE, ISIT '93}, year = 1993, } @article{CTT100456603, author = {Tomoharu Shibuya and Hajime Jinushi and Kohichi Sakaniwa}, title = {On minimum Lee distance of generalized Reed-Muller code}, journal = {Proc. of ISITA'92}, year = 1992, } @article{CTT100455277, author = {渋谷智治 and 地主創 and 坂庭好一 }, title = {一般リード・マラー符号の最小リー距離について}, journal = {信学技報}, year = 1992, } @inproceedings{CTT100583542, author = {Kenta Kasai and Tomoharu Awano and David Declercq and Charly Poulliat and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Weight Distributions of Non-binary LDPC Codes}, booktitle = {Proc. ISITA2008}, year = 2008, } @inproceedings{CTT100583543, author = {Tomoharu Awano and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Three-Edge type LDPC Code Ensembles with Exponentially Few Codewords with Linear Small Weight}, booktitle = {Proc. ISITA2008}, year = 2008, } @inproceedings{CTT100583544, author = {Ryuhei Mori and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Asymptotic Gaps between BP Decoding and Local-MAP Decoding for Low-Density Parity-Check Codes}, booktitle = {Proc. 5th International Symposium on Turbo Codes and Related Topics}, year = 2008, } @inproceedings{CTT100583549, author = {Tomoharu Awano and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Analysis of Weight Distributions of Two-Edge type LDPC Codes by Hayman Approximation}, booktitle = {Proc. 5th International Symposium on Turbo Codes and Related Topics}, year = 2008, } @inproceedings{CTT100583581, author = {Tomoharu Awano and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Multi-Edge type LDPC Code Ensembles with Exponentially Few Codewords of Linear Small Weight}, booktitle = {Proc. LDPC Workshop}, year = 2008, } @inproceedings{CTT100583579, author = {Takayuki Nozaki and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {A Note on Analitical Solution of Covariance Evolution for Regular LDPC Codes}, booktitle = {Proc LDPC Workshop}, year = 2008, } @inproceedings{CTT100583553, author = {Takayuki Nozaki and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Detailed Evolution of Degree Distributions in Residual Graphs with Joint Degree Distributions}, booktitle = {Proc. IEEE ISIT2008}, year = 2008, } @inproceedings{CTT100583561, author = {Ryuhei Mori and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Asymptotic Bit Error Probability of LDPC Codes for the Binary Erasure Channel with Finite Number of Iterations}, booktitle = {Proc. IEEE ISIT2008}, year = 2008, } @inproceedings{CTT100583557, author = {Tsuyoshi Nakasendo and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Two-Edge type LDPC Code Ensembles with Exponentially Few Codewords with Linear Small Weight}, booktitle = {Proc. IEEE ISIT2008}, year = 2008, } @inproceedings{CTT100552914, author = {Shin'ya Miyamoto and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Tight Bounds of minimum Distance Distributions of Irregular LDPC Code Ensembles}, booktitle = {Proc. of IEEE ISIT 2007}, year = 2007, } @inproceedings{CTT100552912, author = {Tomoharu Awano and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Capacity-Achieving Irregular LDPC-GM Codes with Bounded Graphical Complexity on Noisy Channels}, booktitle = {Proc. of 2007 Hawaii and SITA Joint Conference on Information Theory}, year = 2007, } @inproceedings{CTT100552907, author = {Kenta Kasai and Yuji Shimoyama and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Asymptotic Average Coset Weight Distribution of Multi-Edge Type LDPC Code Ensembles}, booktitle = {Proc. of ISITA 2006}, year = 2006, } @inproceedings{CTT100552910, author = {Takayuki Itsui and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Support Weight Distribution of Regular LDPC Code Ensembles}, booktitle = {Proc. of ISITA 2006}, year = 2006, } @inproceedings{CTT100552897, author = {Ryoji Ikegaya and Kenta Kasai and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Upper Bounds of Block Error Probability of Standard Irregular LDPC Code Ensemble under Maximum Likelihood Decoding}, booktitle = {Proc. of 4th International Symposium on Turbo Codes & Related Topics}, year = 2006, } @inproceedings{CTT100552896, author = {Kenta Kasai and Yuji Shimoyama and Tomoharu Shibuya and Kohichi Sakaniwa}, title = {Average Coset Weight Distribution of Multi-Edge type LDPC Code Ensembles}, booktitle = {Proc. of 4th International Symposium on Turbo Codes & Related Topics}, year = 2006, } @misc{CTT100596299, author = {TOMOHARU SHIBUYA}, title = {Bounds of Linear Codes and Their Applications to Algebraic Geometry Codes}, year = 1999, } @phdthesis{CTT100596299, author = {TOMOHARU SHIBUYA}, title = {Bounds of Linear Codes and Their Applications to Algebraic Geometry Codes}, school = {東京工業大学}, year = 1999, }