IEICE Trans

Chang-Jun AHN

Pilot De-Contamination by Modified HTRCI with Time-Domain CSI Separation for Two-Cell MIMO Downlink Kakeru MATSUBARA Shun KUROKI Koki ITO Kazushi SHIMADA Kazuki MARUTA Chang-Jun AHN
Publication: Publication Date: 2021/09/01 Vol. E104-A No. 9 pp. 1345-1348 Type of Manuscript: LETTER Category: Digital Signal Processing Keyword: channel estimation, pilot contamination, HTRCI,
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Data-Aided SMI Algorithm Using Common Correlation Matrix for Adaptive Array Interference Suppression Kosuke SHIMA Kazuki MARUTA Chang-Jun AHN
Publication: Publication Date: 2021/02/01 Vol. E104-A No. 2 pp. 404-411 Type of Manuscript: Special Section PAPER (Special Section on Signal Design and Its Applications in Communications) Category: Digital Signal Processing Keyword: adaptive array, channel estimation, sample matrix invesion, decision feedback,
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Multi Modulus Signal Adaptation for Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems Kazuki MARUTA Chang-Jun AHN
Publication: Publication Date: 2021/02/01 Vol. E104-B No. 2 pp. 158-168 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: massive MIMO, multicell, pilot contamination, multi modulus algorithm, channel estimation, decision feedback, beamspace, minimum mean square error,
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Improving Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems: A Beamspace Approach Kazuki MARUTA Chang-Jun AHN
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1503-1511 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond) Category: Keyword: massive MIMO, multicell, pilot contamination, adaptive array, constant modulus algorithm, channel estimation, decision feedback, beamspace,
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Achievement Accurate CSI for AF Relay MIMO/OFDM Based on Complex HTRCI Pilot Signal with Enhanced MMSE Equalization Yuta IDA Chang-Jun AHN Takahiro MATSUMOTO Shinya MATSUFUJI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2015/11/01 Vol. E98-A No. 11 pp. 2254-2262 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Keyword: AF relay transmissions, MIMO, OFDM, complex HTRCI pilot signal, enhanced MMSE equalization,
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Removing Deep Faded Subcarrier Channel for Cooperative Multiuser Diversity OFDMA Based on Low Granularity Block Yuta IDA Chang-Jun AHN Takahiro MATSUMOTO Shinya MATSUFUJI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2014/12/01 Vol. E97-A No. 12 pp. 2586-2594 Type of Manuscript: Special Section PAPER (Special Section on Signal Design and Its Applications in Communications) Category: Communication Theory and Signals Keyword: multiuser diversity OFDMA, low granularity block, cooperative communications, deep faded subcarrier channel,
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Single Symbol Decodable QO-STBC with Full Diversity Naotoshi YODA Chang-Jun AHN Ken-ya HASHIMOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2014/01/01 Vol. E97-A No. 1 pp. 2-6 Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems) Category: Foundations Keyword: QO-STBC, symbol modification, power imbalance, transmission diversity,
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Heterogeneous Constellation Based QOSTBC for Improving Detection Property of QRD-MLD Chang-Jun AHN Ken-ya HASHIMOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/08/01 Vol. E95-B No. 8 pp. 2674-2677 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: OSTBC, QOSTBC, MIMO, QRD-MLD, heterogeneous constellation,
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Performance Enhancement of MQRD-PCM/MIMO-OFDM Using Channel Ranking Based Joint Symbols Detection Chang-Jun AHN
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/08/01 Vol. E92-A No. 8 pp. 1913-1919 Type of Manuscript: Special Section PAPER (Special Section on Signal Processing) Category: Communications Keyword: OFDM, MIMO, MQRD-PCM, channel ranking, inter-antenna interference (IAI),
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Link Correlation Based Transmit Sector Antenna Selection for Alamouti Coded OFDM Chang-Jun AHN
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/03/01 Vol. E92-A No. 3 pp. 816-823 Type of Manuscript: Special Section PAPER (Special Section on Latest Advances in Fundamental Theories of Signal Processing) Category: Keyword: MIMO, FBI, OFDM, antenna selection, sector antenna,
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Throughput Improvement with Discrete Pilot Signal Assignment and Iterative Channel Identification for MQRD-PCM/OFDM Chang-Jun AHN
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/08/01 Vol. E91-A No. 8 pp. 2000-2007 Type of Manuscript: Special Section PAPER (Special Section on Signal Processing) Category: Keyword: MIMO, OFDM, QR decomposition, MQRD-PCM,
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Accurate Channel Identification with Time-Frequency Interferometry for OFDM Chang-Jun AHN
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/11/01 Vol. E90-A No. 11 pp. 2641-2645 Type of Manuscript: LETTER Category: Communication Theory and Signals Keyword: OFDM, time-frequency interferometry, CSI,
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Subcarrier Block Power Control for Adaptive Downlink OFDM with Frequency Spreading and Equalization Nam-Su KIM Sungho CHO Chang-Jun AHN
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/07/01 Vol. E89-B No. 7 pp. 2102-2105 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: subcarrier block power control, frequency symbol spreading, MMSEC,
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Superimposed Frequency Symbol Based Adaptive Downlink OFDM with Frequency Spreading and Equalization Chang-Jun AHN Hiroshi HARADA Yukiyoshi KAMIO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/02/01 Vol. E89-B No. 2 pp. 500-508 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: AMS/OFDM, frequency symbol spreading, frequency equalization, MMSEC, ORC,
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Stochastic Method of Determining Substream Modulation Levels for MIMO Eigenbeam Space Division Multiplexing Satoshi TAKAHASHI Chang-Jun AHN Hiroshi HARADA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/01/01 Vol. E89-B No. 1 pp. 142-149 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: mobile radio propagation, adaptive modulation, multipath environments, ray tracing, MIMO, E-SDM,
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Effect of Delay Spread Enhancement in MIMO Eigenbeam Space Division Multiplexing Transmission Satoshi TAKAHASHI Chang-Jun AHN Hiroshi HARADA Yukiyoshi KAMIO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/07/01 Vol. E88-A No. 7 pp. 1931-1935 Type of Manuscript: Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks) Category: Keyword: radio propagation, delay spread, MIMO, E-SDM,
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Adaptive Subcarrier Block Modulation with Differentially Modulated Pilot Symbol Assistance for Downlink OFDM Using Uplink Delay Spread Chang-Jun AHN Satoshi TAKAHASHI Hiroshi HARADA Yukiyoshi KAMIO Iwao SASASE
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/07/01 Vol. E88-A No. 7 pp. 1889-1896 Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks) Category: Wireless Communication Technology Keyword: DMPSA-ASMS/OFDM, MLI, coherence bandwidth, RMS delay spread,
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Differential Modulated Pilot Symbol Assisted Adaptive OFDM for Reducing the MLI with Predicted FBI Chang-Jun AHN Satoshi TAKAHASHI Hiroshi HARADA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/02/01 Vol. E88-B No. 2 pp. 436-442 Type of Manuscript: Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2) Category: Keyword: AMS/OFDM, MLI, FBI,
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Reverse Link Performance Improvement for Wideband OFDM Using Alamouti Coded Heterogeneous Polarization Antennas Chang-Jun AHN Yukiyoshi KAMIO Satoshi TAKAHASHI Hiroshi HARADA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2004/11/01 Vol. E87-B No. 11 pp. 3281-3288 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: OFDM, STBC, polarization, XPD,
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Iterative Decoding with LDPC Based Unitary Matrix Modulated OFDM with Splitting the Diagonal Components over the Coherence Bandwidth Chang-Jun AHN
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2004/08/01 Vol. E87-B No. 8 pp. 2411-2414 Type of Manuscript: LETTER Category: Wireless Communication Technology Keyword: LDPC, OFDM, coherence bandwidth, unitary matrix,
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Multiple Pre-Rake Filtering Based on the Predicted Channel Impulse Response in the Transmitter and a Rake Combiner in the Receiver for TDD/DS-CDMA Mobile Communication Systems Chang-Jun AHN Iwao SASASE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2002/10/01 Vol. E85-B No. 10 pp. 2282-2291 Type of Manuscript: PAPER Category: Wireless Communication Technology Keyword: CDMA, Rake receiver, pre-Rake system, time division duplex (TDD),
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Code Orthogonalizing Filter Based Adaptive Array Antenna Using Common Correlation Matrix of Time Domain Signals for Multicarrier DS/CDMA Systems Chang-Jun AHN Iwao SASASE
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/07/01 Vol. E85-A No. 7 pp. 1604-1611 Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks) Category: Keyword: MC-DS/CDMA, code orthogonalizing filter (COF), sample matrix inversion (SMI), adaptive array antenna, common correlation matrix,
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