Address

C408

Toyohashi University of Technology

1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan.

- K. Takeuchi, "Generalized Approximate Message-Passing for Compressed Sensing with Sublinear Sparsity," submitted to
*IEEE Trans. Inf. Theory*. - K. Takeuchi, "Decentralized Generalized Approximate Message-Passing for Tree-Structured Networks,"
*IEEE Trans. Inf. Theory*, vol. 70, no. 10, pp. 7385-7409, Oct. 2024. - K. Takeuchi, "Orthogonal Approximate Message-Passing for Spatially Coupled Linear Models,"
*IEEE Trans. Inf. Theory*, vol. 70, no. 1, pp. 594-631, Jan. 2024. - S. Hashimoto and K. Takeuchi, "Simplification and Accurate Implementation of State Evolution Recursion for Conjugate Gradient,"
*IEICE Trans. Fundamentals*, vol. E106-A, no. 6, pp. 952-956, Jun. 2023. - T. Yoshida and K. Takeuchi, "Deep Learning of Damped AMP Decoding Networks for Sparse Superposition Codes via Annealing,"
*IEICE Trans. Fundamentals.*, vol. E106-A, no. 3, pp. 414-421, Mar. 2023. - K. Takeuchi, "On the Convergence of Orthogonal/Vector AMP: Long-Memory Message-Passing Strategy,"
*IEEE Trans. Inf. Theory*, vol. 68, no. 12, pp. 8121-8138, Dec. 2022. - K. Takeuchi, "On the Convergence of Convolutional Approximate Message-Passing for Gaussian Signaling,"
*IEICE Trans. Fundamentals.*, vol. E105-A, no. 2, pp. 100-108, Feb. 2022. - Y. Oba and K. Takeuchi, "Finite-Size Correction of Expectation-Propagation Detection,"
*IEICE Trans. Fundamentals.*, vol. E105-A, no. 1, pp. 77-81, Jan. 2022. - K. Takeuchi, "Bayes-Optimal Convolutional AMP,"
*IEEE Trans. Inf. Theory*, vol. 67, no. 7, pp. 4405-4428, Jul. 2021. - W. Tatsuno and K. Takeuchi, "Pilot Decontamination in Spatially Correlated Massive MIMO Uplink via Expectation Propagation,"
*IEICE Trans. Fundamentals.*, vol. E104-A, no. 4, pp. 723-733, Apr. 2021. - T. Sugiyama and K. Takeuchi, "Expectation-Propagation Detection for Generalized Spatial Modulation with Sparse Orthogonal Precoding,"
*IEICE Trans. Fundamentals.*, vol. E104-A, no. 3, pp. 661-664, Mar. 2021. - H. Mayumi and K. Takeuchi, "Expectation Propagation Decoding for Sparse Superposition Codes,"
*IEICE Trans. Fundamentals.*, vol. E103-A, no. 12, pp. 1666-1669, Dec. 2020. - T. Fujitsuka and K. Takeuchi, "Pilot Decontamination in Massive MIMO Uplink via Approximate Message-Passing,"
*IEICE Trans. Fundamentals.*, vol. E103-A, no. 12, pp. 1356-1366, Dec. 2020. - K. Takeuchi, "Convolutional Approximate Message-Passing,"
*IEEE Signal Process. Lett.*, vol. 27, pp. 416-420, 2020. - K. Takeuchi, "Rigorous Dynamics of Expectation-Propagation-Based Signal Recovery from
Unitarily Invariant Measurements,"
*IEEE Trans. Inf. Theory*, vol. 66, no. 1, pp. 368-386, Jan. 2020. - M. Yamada, K. Takeuchi, and K. Koike, "Hardware-Aware Sum-Product Decoding in the Decision Domain,"
*IEICE Trans. Fundamentals*., vol. E102-A, no. 12, pp. 1980-1987, Dec. 2019. - K. Takeuchi, "A Family of Counterexamples to the Central Limit Theorem Based on Binary
Linear Codes,"
*IEICE Trans. Fundamentals*., vol. E102-A, no. 5, pp. 738-740, May 2019. - K. Takeuchi, "Asymptotic Optimality of QPSK Faster-than-Nyquist Signaling in Massive MIMO Systems,"
*IEICE Trans. Fundamentals*., vol. E99-A, no. 12, pp. 2192-2201, Dec. 2016. - K. Takeuchi, "Second-Order Optimality of Generalized Spatial Modulation for MIMO Channels with No CSI,"
*IEEE Wireless Commun. Lett.*, vol. 4, no. 6, pp. 613-616, Dec. 2015. - K. Takeuchi, "Spatial Modulation Achieves Information-Theoretically Optimal Energy Efficiency,"
*IEEE Commun. Lett.*, vol. 19, no. 7, pp. 1133-1136, Jul. 2015. - K. Takeuchi, T. Tanaka, and T. Kawabata, "Performance Improvement of Iterative Multiuser Detection for Large Sparsely Spread CDMA Systems by Spatial Coupling,"
*IEEE Trans. Inf. Theory*, vol. 61, no. 4, pp. 1768-1794, Apr. 2015. - S. Horio, K. Takeuchi, and T. Kawabata, "Iterative Channel Estimation and Decoding via Spatial Coupling,"
*IEICE Trans. Fundamentals*., vol. E98-A, no. 2, pp. 549-557, Feb. 2015. - K. Takeuchi and S. Horio, "Iterative Multiuser Detection and Decoding with Spatially Coupled Interleaving,"
*IEEE Wireless Commun. Lett.*, vol. 2, no. 6, pp. 619-622, Dec. 2013. - K. Takeuchi, R. R. Müller, M. Vehkaperä, and T. Tanaka, "On an Achievable Rate of Large Rayleigh Block-Fading MIMO Channels With No CSI,"
*IEEE Trans. Inf. Theory*, vol. 59, no. 10, pp. 6517-6541, Oct. 2013. - K. Takeuchi, R. R. Müller, and M. Vehkaperä, "Iterative LMMSE Channel Estimation and Decoding Based on Probabilistic Bias,"
*IEEE Trans. Commun*., vol. 61, no. 7, pp. 2853-2863, Jul. 2013. - K. Takeuchi, "Accelerating Iterative Detection for Spatially Coupled Systems by Collaborative Training,"
*IEEE Commun. Lett*., vol. 17, no. 3, pp. 451-454, Mar. 2013. - K. Takeuchi, T. Tanaka, and T. Kawabata, "A Phenomenological Study on Threshold Improvement via Spatial Coupling,"
*IEICE Trans. Fundamentals*, vol. E95-A, no. 5, pp. 974-977, May 2012. - K. Takeuchi, M. Vehkaperä, T. Tanaka, and R. R. Müller, "Large-System Analysis of Joint Channel and Data Estimation for MIMO DS-CDMA Systems,"
*IEEE Trans. Inf. Theory*, vol. 58, no. 3, pp. 1385-1412, Mar. 2012. - K. Takeuchi, R. R. Müller, and M. Vehkaperä, "Bias-Based Training for Iterative Channel Estimation and Data Decoding in Fast Fading Channels,"
*IEICE Trans. Commun*., vol. E94-B, no. 7, pp. 2161-2165, Jul. 2011. - K. Takeuchi, M. Vehkaperä, T. Tanaka, and R. R. Müller, "Performance Analysis of Optimal Channel Estimation and Multiuser Detection in a Randomly-Spread CDMA Channel,"
*J. Syst. Sci. & Complexity*, vol. 23, no. 1, pp. 22-34, Feb. 2010. - K. Takeuchi, T. Tanaka, and T. Yano, "Asymptotic Analysis of General Multiuser Detectors in MIMO DS-CDMA Channels,"
*IEEE J. Sel. Areas Commun.*, vol. 26, no. 3, pp. 486-496, Apr. 2008. (IEEE Kansai Section Student Paper Award) - K. Takeuchi and T. Tanaka, "Statistical-Mechanics-Based Analysis of Multiuser MIMO Channels with Linear Dispersion Codes,"
*J. Phys.: Conf. Ser.*, vol. 95, no. 1, pp. 012008--1-11, 2008. - A. -H. Sato, K. Takeuchi, and T. Hada, "Phase Transitions on an Array of Double-Threshold Noisy Devices with a Positive Feedback,"
*Phys. Lett. A*, vol. 346, no. 1-3, pp. 27-32, 2005.

- K. Takeuchi, "Generalized Approximate Message-Passing for Compressed Sensing with Sublinear Sparsity," submitted to
*2025 IEEE Int. Conf. Acoust. Speech Signal Process.*, Hyderabad, India, Apr. 2025. - K. Takeuchi, "Decentralized Generalized Approximate Message-Passing for Tree-Structured Networks," in
*Proc. 2024 IEEE Int. Conf. Acoust. Speech Signal Process.*, Seoul, Korea, pp. 12866-12870, Apr. 2024. - K. Takeuchi, "Long-Memory Message-Passing for Spatially Coupled Systems," in
*Proc. 2023 IEEE Int. Conf. Acoust. Speech Signal Process.*, Rhodes Island, Greece, Jun. 2023. - K. Takeuchi, "On the Convergence of Orthogonal/Vector AMP: Long-Memory Message-Passing Strategy," in
*Proc. 2022 IEEE Int. Symp. Inf. Theory*, Espoo, Finland, pp. 1366-1371, Jun.-Jul. 2022. - K. Takeuchi, "Bayes-Optimal Convolutional AMP," in
*Proc. 2021 IEEE Int. Symp. Inf. Theory*, virtual, pp. 1385-1390, Jul. 2021. - K. Takeuchi, "A Unified Framework of State Evolution for Message-Passing Algorithms," in
*Proc. 2019 IEEE Int. Symp. Inf. Theory*, Paris, France, pp. 151-155, Jul. 2019. - K. Takeuchi and C.-K. Wen, "Rigorous Dynamics of Expectation-Propagation Signal Detection via the Conjugate Gradient Method," in
*Proc. 18th IEEE Int. Workshop Sig. Process. Advances Wirel. Commun. (SPAWC 2017)*, Sapporo, Japan, pp. 88-92, Jul. 2017.(Invited paper) - S. Zhang, C.-K. Wen, K. Takeuchi, and S. Jin, "Orthogonal Approximate Message Passing for GFDM Detection," in
*Proc. 18th IEEE Int. Workshop Sig. Process. Advances Wirel. Commun. (SPAWC 2017)*, Sapporo, Japan, pp. 695-699, Jul. 2017. - K. Takeuchi, "Rigorous Dynamics of Expectation-Propagation-Based Signal Recovery from Unitarily Invariant Measurements," in
*Proc. 2017 IEEE Int. Symp. Inf. Theory*, Aachen, Germany, pp. 501-505, Jun. 2017. - K. Takeuchi, "A Generalization of Threshold Saturation: Application to Spatially Coupled BICM-ID," in
*Proc. 2014 IEEE Int. Symp. Inf. Theory*, Honolulu, HI, USA, pp. 2316-2320, Jul. 2014. - R. Ohashi, K. Kasai, and K. Takeuchi, "Multi-Dimensional Spatially-Coupled Codes," in
*Proc. 2013 IEEE Int. Symp. Inf. Theory*, Istanbul, Turkey, pp. 2448-2452, Jul. 2013. - K. Takeuchi, R. R. Müller, and T. Kawabata, "Large-System Analysis of Joint User Selection and Vector Precoding with Zero-Forcing Transmit Beamforming for MIMO Broadcast Channels," in
*Proc. 2012 Int. Symp. Inf. Theory and its Appl.*, Honolulu, HI, USA, pp.245-249, Oct. 2012. - K. Takeuchi, R. R. Müller, and M. Vehkaperä, "A Construction of Turbo-Like Codes for Iterative Channel Estimation Based on Probabilistic Bias," in
*Proc. IEEE Global Telecommunications Conference (GLOBECOM 2011)*, Houston, TX, USA, Dec. 2011. - K. Takeuchi, T. Tanaka, and T. Kawabata, "Improvement of BP-Based CDMA Multiuser Detection by Spatial Coupling," in
*Proc. 2011 IEEE Int. Symp. Inf. Theory*, Saint Petersburg, Russia, pp. 1489-1493, Aug. 2011. - K. Takeuchi, R. R. Müller, M. Vehkaperä, and T. Tanaka, "An Achievable Rate of Large Block-Fading MIMO Systems with No CSI via Successive Decoding," in
*Proc. 2010 Int. Symp. Inf. Theory and its Appl & 2010 Int. Symp. Spread Spectrum Tech. and Appl.*, Taichung, Taiwan, pp. 519-524, Oct. 2010. - M. Vehkaperä, K. Takeuchi, R. R. Müller, and T. Tanaka, "Iterative Channel Estimation, Detection, and Decoding in Large CDMA Systems," in
*Proc. 6th Int. Symp. Turbo Codes & Iterative Inf. Processing*, Brest, France, pp.16-23, Sep. 2010. (Invited paper without review) - M. Vehkaperä, K. Takeuchi, R. R. Müller, and T. Tanaka, "Analysis of Large MIMO DS-CDMA Systems with Imperfect CSI and Spatial Correlation," in
*Proc. 2010 IEEE Int. Symp. Inf. Theory*, Austin, TX, USA, pp. 2098-2102, Jun. 2010. - M. Vehkaperä, K. Takeuchi, R. R. Müller, and T. Tanaka, "How Much Training Is Needed for Iterative Multiuser Detection and Decoding?" in
*Proc. IEEE Global Telecommunications Conference (GLOBECOM 2009)*, Honolulu, HI, USA, Nov. 2009. - K. Takeuchi, R. R. Müller, M. Vehkaperä, and T. Tanaka, "Practical Signaling with Vanishing Pilot-Energy for Large Noncoherent Block-Fading MIMO Channels," in
*Proc. 2009 IEEE Int. Symp. Inf. Theory*, Seoul, Korea, pp. 759-763, Jun. 2009. - M. Vehkaperä, K. Takeuchi, R. R. Müller, and T. Tanaka, "Iterative Channel and Data Estimation: Framework and Analysis via Replica Method," in
*Proc. 2009 IEEE Int. Symp. Inf. Theory*, Seoul, Korea, pp. 2689-2693, Jun. 2009. - K. Takeuchi, R. R. Müller, M. Vehkaperä, and T. Tanaka, "A New Signaling Scheme for Large DS-CDMA Channels without CSI," in
*2nd Workshop on Physics-Inspired Paradigms in Wireless Communications and Networks (Physcomnet 2009)*(published in*Proc. 7th Model. & Opt. Mob. Ad-Hoc Wireless Net. (Wiopt 2009))*, Seoul, Korea, Jun. 2009. (Invited paper without review) - M. Vehkaperä, K. Takeuchi, R. R. Müller, and T. Tanaka, "On Asymptotic Performance of Iterative Channel and Data Estimation in Large DS-CDMA Systems," in
*2nd Workshop on Physics-Inspired Paradigms in Wireless Communications and Networks (Physcomnet 2009)*(published in*Proc. 7th Model. & Opt. Mob. Ad-Hoc Wireless Net. (Wiopt 2009))*, Seoul, Korea, Jun. 2009. (Invited paper without review) - K. Takeuchi, "Optimal Amount of Pilot Information for MIMO Channel Estimation,"
*Joint Workshop of Beijing, Hong Kong and Kyoto on Computational Mathematics, Computer and Systems Sciences (CMCSS) 2009, Kyoto, Japan, Mar. 2009. (without review)* - K. Takeuchi, M. Vehkaperä, T. Tanaka, and R. R. Müller, "Asymptotic Performance Bounds of Joint Channel Estimation and Multiuser Detection in Frequency-Selective Fading DS-CDMA Channels," in
*Proc. 2008 Int. Symp. Inf. Theory and its Appl.*, Auckland, New Zealand, pp. 359-364, Dec. 2008. - M. Vehkaperä, K. Takeuchi, R. R. Müller, and T. Tanaka, "Asymptotic Analysis of Iterative Channel Estimation and Multiuser Detection with Soft Feedback in Multipath Channels," in
*Proc. 16th Euro. Signal Process. Conf.*, Lausanne, Switzerland, Aug. 2008. - K. Takeuchi, M. Vehkaperä, T. Tanaka, and R. R. Müller, "Replica Analysis of General Multiuser Detection in MIMO DS-CDMA Channels with Imperfect CSI," in
*Proc. 2008 IEEE Int. Symp. Inf. Theory*, Toronto, Canada, pp. 514-518, Jul. 2008. - K. Takeuchi, "Large-System Analysis of MIMO-CDMA Channels with Imperfect Channel State Information,"
*Chinese Academy of Science-Kyoto University Joint Workshop on Mathematical Methods for Informatics, Engineering and Management*, Beijing, China, Mar. 2008 (without review). - K. Takeuchi and T. Tanaka, "Statistical-Mechanics-Based Analysis of a Random Vector Channel with a Hierarchical Structure," in
*Proc. International Workshop on Statistical-Mechanical Informatics 2007*, pp. 45-54, Kyoto, Japan, Sep. 2007. (Invited paper without review) - K. Takeuchi and T. Tanaka, " Hierarchical Decoupling Principle of a MIMO-CDMA Channel in Asymptotic Limits," in
*Proc. 2007 IEEE Int. Symp. Inf. Theory*, Nice, France, pp. 1271-1275, Jun. 2007.