Chang-Jun Ahn
According to our database1,
Chang-Jun Ahn
authored at least 112 papers
between 2002 and 2024.
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Bibliography
2024
Proceedings of the International Conference on Electronics, Information, and Communication, 2024
Efficient Joint Estimation Methods of Channel and IQ Imbalance for MIMO-OFDM Systems.
Proceedings of the International Conference on Electronics, Information, and Communication, 2024
2023
IEEE Trans. Cogn. Commun. Netw., October, 2023
Adaptive Zero-Padding with Impulsive Training Signal MMSE-SMI Adaptive Array Interference Suppression.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., April, 2023
ICT Express, February, 2023
2022
Towards Deep Learning-Guided Multiuser SNR and Doppler Shift Detection for Next-Generation Wireless Systems.
Proceedings of the 95th IEEE Vehicular Technology Conference, 2022
Game Theoretic Framework for Beamforming Optimization for Photon-Counting Multiuser MISO Channel with Asymptotic Low Power.
Proceedings of the 2022 IEEE International Conference on Communications Workshops, 2022
2021
CNN-Based Joint SNR and Doppler Shift Classification Using Spectrogram Images for Adaptive Modulation and Coding.
IEEE Trans. Commun., 2021
Multi Modulus Signal Adaptation for Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems.
IEICE Trans. Commun., 2021
Data-Aided SMI Algorithm Using Common Correlation Matrix for Adaptive Array Interference Suppression.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021
Pilot De-Contamination by Modified HTRCI with Time-Domain CSI Separation for Two-Cell MIMO Downlink.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021
Dimensionality reduction of interference subspace for multiuser massive MIMO null-space expansion.
Digit. Signal Process., 2021
IEEE Access, 2021
Generalized Regression Neural Network Based Fast Fading Channel Tracking Using Frequency-Domain CSI Smoothing.
IEEE Access, 2021
Investigation of Input Signal Representation to CNN for Improving SNR Classification Accuracy.
Proceedings of the 94th IEEE Vehicular Technology Conference, 2021
Proceedings of the 94th IEEE Vehicular Technology Conference, 2021
Proceedings of the International Symposium on Intelligent Signal Processing and Communication Systems, 2021
Proceedings of the International Symposium on Intelligent Signal Processing and Communication Systems, 2021
Proceedings of the International Symposium on Intelligent Signal Processing and Communication Systems, 2021
2020
Frame splitting and data-aided decision direct channel estimation for OFDM in fast varying fading channels.
ICT Express, 2020
Uplink Null-Space Expansion for Multiuser Massive MIMO in Time-Varying Channels Under Unknown Interference.
IEEE Access, 2020
Proceedings of the 23rd International Symposium on Wireless Personal Multimedia Communications, 2020
Proceedings of the 23rd International Symposium on Wireless Personal Multimedia Communications, 2020
Proceedings of the 23rd International Symposium on Wireless Personal Multimedia Communications, 2020
Improved Null-Space Expansion Scheme under Presence of Channel Estimation Error for Multiuser Massive MIMO.
Proceedings of the 23rd International Symposium on Wireless Personal Multimedia Communications, 2020
High Beamforming Gain Precoding Weight Design Scheme with Null-Space Expansion for Multiuser Massive MIMO in Time-Varying Channels.
Proceedings of the 23rd International Symposium on Wireless Personal Multimedia Communications, 2020
Blind SIR Estimation by Convolutional Neural Network Using Visualized IQ Constellation.
Proceedings of the 91st IEEE Vehicular Technology Conference, 2020
High-precision SNR Estimation by CNN using PSD Image for Adaptive Modulation and Coding.
Proceedings of the 91st IEEE Vehicular Technology Conference, 2020
2019
Improving Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems: A Beamspace Approach.
IEICE Trans. Commun., 2019
ICT Express, 2019
Transmit power imbalance reduction method and nonlinear companding transform for beamforming OFDM systems.
ICT Express, 2019
ICT Express, 2019
IEEE Access, 2019
Enhanced Semi-Blind Uplink Interference Suppression on Multicell Massive MIMO Systems for Multi Modulus Signals.
Proceedings of the 90th IEEE Vehicular Technology Conference, 2019
Proceedings of the 25th Asia-Pacific Conference on Communications, 2019
Channel Ranking based Spread Code Optimization for Visible Light Communication OFDM-IDMA Systems.
Proceedings of the 25th Asia-Pacific Conference on Communications, 2019
Data-aided SMI Algorithm using Common Correlation Matrix for Adaptive Array Interference Suppression.
Proceedings of the 25th Asia-Pacific Conference on Communications, 2019
Fast Fading Compensation by Frame Splitting and Decision Directed Channel Extrapolation for OFDM.
Proceedings of the 25th Asia-Pacific Conference on Communications, 2019
Proceedings of the 25th Asia-Pacific Conference on Communications, 2019
Outage Probability Analysis of MF Precoded Massive MIMO with Multi-antenna User Environment.
Proceedings of the 25th Asia-Pacific Conference on Communications, 2019
2018
Uplink Interference Suppression by Semi-Blind Adaptive Array With Decision Feedback Channel Estimation on Multicell Massive MIMO Systems.
IEEE Trans. Commun., 2018
Proceedings of the 26th International Conference on Software, 2018
Proceedings of the 29th IEEE Annual International Symposium on Personal, 2018
Proceedings of the 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2018
2017
Reduced complexity and latency for a massive MIMO system using a parallel detection algorithm.
ICT Express, 2017
Blind symbol timing synchronization scheme for real-time industrial wireless control network using high-speed preambleless OFDM systems over multipath fading channels.
Digit. Signal Process., 2017
Proceedings of the 20th International Symposium on Wireless Personal Multimedia Communications, 2017
A weighted least-squares method using received signal strength measurements for WLAN indoor positioning system.
Proceedings of the 20th International Symposium on Wireless Personal Multimedia Communications, 2017
Proceedings of the 20th International Symposium on Wireless Personal Multimedia Communications, 2017
Improving scattered pilot channel estimation by sector selection on FDD MIMO/OFDM systems.
Proceedings of the 20th International Symposium on Wireless Personal Multimedia Communications, 2017
Improved common correlation matrix based SMI algorithm by channel estimation error minimization with LMS approach.
Proceedings of the 20th International Symposium on Wireless Personal Multimedia Communications, 2017
2016
An applicable 5.8 GHz wireless power transmission system with rough beamforming to Project Loon.
ICT Express, 2016
Proceedings of the IEEE International Conference on Industrial Technology, 2016
Proceedings of the IEEE International Conference on Communication, 2016
2015
IEEE Trans. Circuits Syst. I Regul. Pap., 2015
Achievement Accurate CSI for AF Relay MIMO/OFDM Based on Complex HTRCI Pilot Signal with Enhanced MMSE Equalization.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015
IQ imbalance estimation and compensation schemes based on time-frequency interferometry for OFDM.
Trans. Emerg. Telecommun. Technol., 2015
Estimation based on weighted channel variance for HTRCI-MIMO/OFDM with QRM-MLD and channel ranking under fast fading Channel.
Trans. Emerg. Telecommun. Technol., 2015
Proceedings of the 2015 International Symposium on Intelligent Signal Processing and Communication Systems, 2015
Channel compensation based on VPS and time-frequency interferometry for massive MIMO-OFDM.
Proceedings of the 2015 International Symposium on Intelligent Signal Processing and Communication Systems, 2015
Proceedings of the 2015 International Symposium on Intelligent Signal Processing and Communication Systems, 2015
Spatial performance of color clustered VLC-MIMO due to incompleteness of color filters.
Proceedings of the 2015 International Symposium on Intelligent Signal Processing and Communication Systems, 2015
A novel time synchronization scheme for OFDM systems based on variational Pseudo-noise preamble.
Proceedings of the 10th Asia-Pacific Symposium on Information and Telecommunication Technologies, 2015
2014
Time Domain Replica Signal Based Interference Compensation for SP-MIMO/OFDM with Large Delay Spread Channel.
Int. J. Distributed Syst. Technol., 2014
Int. J. Distributed Syst. Technol., 2014
Int. J. Commun. Syst., 2014
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014
Removing Deep Faded Subcarrier Channel for Cooperative Multiuser Diversity OFDMA Based on Low Granularity Block.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014
Proceedings of the International Symposium on Intelligent Signal Processing and Communication Systems, 2014
2013
Variable packet splitting transmission in multi-relay cooperative communications with DF and DAF for SC-FDMA.
EURASIP J. Wirel. Commun. Netw., 2013
Interference compensation scheme using time domain replica signals for SP-MIMO/OFDM under large delay spread channel greater than GI.
Proceedings of the 2013 IEEE RIVF International Conference on Computing and Communication Technologies, 2013
Power priority selection and adaptive clipping with peak reduction signal for MUDiv/OFDMA.
Proceedings of the 2013 IEEE RIVF International Conference on Computing and Communication Technologies, 2013
Non-linear fast fading compensation for HTRCI-MIMO/OFDM with QRM-MLD and channel ranking.
Proceedings of the Sixth International Workshop on Signal Design and Its Applications in Communications, 2013
Proceedings of the 7th International Conference on Signal Processing and Communication Systems, 2013
Enhancement of cell-edge throughput performance with CoMP transmission using QO-STBC scheme.
Proceedings of the IEEE 2nd Global Conference on Consumer Electronics, 2013
Throughput performance enhancement applying adaptive modulation for single symbol decodable QO-STBC with full diversity.
Proceedings of the 19th Asia-Pacific Conference on Communications, 2013
Proceedings of the 19th Asia-Pacific Conference on Communications, 2013
2012
Sorter-Based Arithmetic Circuits for Sigma-Delta Domain Signal Processing - Part II: Multiplication and Algebraic Functions.
IEEE Trans. Circuits Syst. I Regul. Pap., 2012
Sorter-Based Arithmetic Circuits for Sigma-Delta Domain Signal Processing - Part I: Addition, Approximate Transcendental Functions, and Log-Domain Operations.
IEEE Trans. Circuits Syst. I Regul. Pap., 2012
Interference Cancellation Using Replica Signal for HTRCI-MIMO/OFDM in Time-Variant Large Delay Spread Longer Than Guard Interval.
J. Electr. Comput. Eng., 2012
Heterogeneous Constellation Based QOSTBC for Improving Detection Property of QRD-MLD.
IEICE Trans. Commun., 2012
Frequency symbol spreading based adaptive subcarrier block selection for OFDMA system.
Digit. Signal Process., 2012
Proceedings of the IEEE International Conference on Consumer Electronics, 2012
2011
A Pilot Symbol Pattern Enabling Data Recovery Without Side Information in PTS-Based OFDM Systems.
IEEE Trans. Broadcast., 2011
IEICE Electron. Express, 2011
2010
Wirel. Pers. Commun., 2010
Achievable throughput enhancement based on modified carrier interferometry for MIMO/OFDM.
Digit. Signal Process., 2010
2009
Performance Enhancement of MQRD-PCM/MIMO-OFDM Using Channel Ranking Based Joint Symbols Detection.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009
Performance enhancement of TFI-OFDM with path selection based channel identification.
Digit. Signal Process., 2009
Proceedings of the 19th European Conference on Circuit Theory and Design, 2009
Proceedings of the 19th European Conference on Circuit Theory and Design, 2009
Proceedings of the 6th IEEE Consumer Communications and Networking Conference, 2009
2008
Parallel Detection Algorithm Using Multiple QR Decompositions With Permuted Channel Matrix for SDM/OFDM.
IEEE Trans. Veh. Technol., 2008
Throughput Improvement with Discrete Pilot Signal Assignment and Iterative Channel Identification for MQRD-PCM/OFDM.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008
Proceedings of the 5th IEEE Consumer Communications and Networking Conference, 2008
2007
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007
Proceedings of the IEEE Wireless Communications and Networking Conference, 2007
Proceedings of the Neural Information Processing, 14th International Conference, 2007
2006
Unitary matrix modulation with splitting over the coherence bandwidth for OFDM in a single antenna system.
Wirel. Commun. Mob. Comput., 2006
Stochastic Method of Determining Substream Modulation Levels for MIMO Eigenbeam Space Division Multiplexing.
IEICE Trans. Commun., 2006
Subcarrier Block Power Control for Adaptive Downlink OFDM with Frequency Spreading and Equalization.
IEICE Trans. Commun., 2006
Superimposed Frequency Symbol Based Adaptive Downlink OFDM with Frequency Spreading and Equalization.
IEICE Trans. Commun., 2006
2005
Effect of Delay Spread Enhancement in MIMO Eigenbeam Space Division Multiplexing Transmission.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005
Adaptive Subcarrier Block Modulation with Differentially Modulated Pilot Symbol Assistance for Downlink OFDM Using Uplink Delay Spread.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005
Differential Modulated Pilot Symbol Assisted Adaptive OFDM for Reducing the MLI with Predicted FBI.
IEICE Trans. Commun., 2005
Adaptive subcarrier block modulation with differentially modulated pilot symbol assistance for downlink OFDM using uplink delay spread.
Proceedings of the IEEE 16th International Symposium on Personal, 2005
2004
Proceedings of the IEEE 15th International Symposium on Personal, 2004
Reverse link performance improvement for an wideband OFDM using Alamouti coded heterogeneous polarization antennas.
Proceedings of the 9th IEEE Symposium on Computers and Communications (ISCC 2006), June 28, 2004
2003
Pilot symbol assisted high speed packet transmission system based on adaptive OFDM in broadband mobile channel.
J. Commun. Networks, 2003
2002
The effects of modulation combination, target BER, Doppler frequency, and adaptation interval on the performance of adaptive OFDM in broadband mobile channel.
IEEE Trans. Consumer Electron., 2002
Code Orthogonalizing Filter Based Adaptive Array Antenna Using Common Correlation Matrix of Time Domain Signals for Multicarrier DS/CDMA Systems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002