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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
CAS, CS 2024-03-14
Okinawa   [Special Invited Talk] Challenges and Future Direction in Message-Passing Demodulation
Keigo Takeuchi (TUT) CAS2023-121 CS2023-114
Message-passing demodulation is a promising method for demodulation in massive multiple-input multiple-output (MIMO) upl... [more] CAS2023-121 CS2023-114
IA 2022-01-28
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
Efforts to improve facility management efficiency through IoT
Yuichiro Hei, Takamasa Isohara (KDDI Research, Inc.), Keigo Takeuchi (W-NEXCO), Takeshi Kitahara (KDDI Research, Inc.) IA2021-57
In recent years, with the rapid aging of society and the declining birthrate, there are concerns that the shortage of hu... [more] IA2021-57
IT 2020-12-03
Online Online Approximate Message-Passing in Spatially Coupled Bilinear Inference Problems
Yudai Sano, Keigo Takeuchi (TUT) IT2020-52
This paper considers joint channel and data estimation in cell-free massive multiple-input multiple-output (MIMO)uplink.... [more] IT2020-52
IT 2020-12-03
Online Online Approximate Message-Passing in Spatial Modulation Massive MIMO Uplink
Yuta Kuwahara, Keigo Takeuchi (TUT), Satoshi Yamazaki (NIT, Numazu College) IT2020-53
This paper addresses an uplink system in which a receiver with massive degrees of freedom in reception observes signals ... [more] IT2020-53
Aichi Nagoya University [Invited Lecture] Past, Present, and Future of Message-Passing Demodulation
Keigo Takeuchi (TUT) SAT2019-39 RCS2019-168
Approximate message-passing (AMP) is attractive iterative demodulation in the present academic research of massive multi... [more] SAT2019-39 RCS2019-168
pp.119-124(SAT), pp.117-122(RCS)
SIP, IT, RCS 2018-01-23
Kagawa Sunport Hall Takamatsu [Invited Talk] A New Development in Message-Passing Demodulation: Expectation Propagation
Keigo Takeuchi (TUT) IT2017-97 SIP2017-105 RCS2017-311
Expectation propagation (EP) is reviewed as a new demodulation scheme based on message passing in massive multiple-input... [more] IT2017-97 SIP2017-105 RCS2017-311
SIP 2014-08-28
Osaka Ritsumeikan Univ. (Osaka Umeda Campus) [Tutorial Lecture] Fundamentals of Spatial Couping and its Applications
Keigo Takeuchi (UEC) SIP2014-77
In spatially coupled factor graphs, the performance of iterative algorithms based on belief propagation is improved up t... [more] SIP2014-77
IT 2014-05-16
Oita Beppu International Convention Center Iterative Channel Estimation and Decoding via Spatial Coupling
Shuhei Horio, Keigo Takeuchi (UEC) IT2014-8
We propose spatially coupled bit-interleaved coded modulation (SC-BICM). The density evolution analysis shows that the S... [more] IT2014-8
IT 2013-11-26
Shizuoka Hotel Juraku [Invited Talk] Recent Advances in Spatial Coupling -- A Review of Spatially Coupled LDPC Codes --
Keigo Takeuchi (Univ. of Electro-Comm.) IT2013-44
2013 IEEE Information Theory Society Paper Award was awarded to a paper on spatially coupled low-density parity-check co... [more] IT2013-44
SIP, WBS 2008-07-25
Hiroshima Hiroshima Univ. Statistical-Mechanics-Based Approach to Joint Channel Estimation and Multiuser Detection in DS-CDMA Channels
Keigo Takeuchi (Kyoto Univ.), Mikko Vehkaperae (NTNU), Toshiyuki Tanaka (Kyoto Univ.), Ralf R. Mueller (NTNU) SIP2008-84 WBS2008-22
We consider multiuser detection in a randomly-spread frequency-selective block-fading DS-CDMA channel with imperfect CSI... [more] SIP2008-84 WBS2008-22
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