Char-Dir Chung

According to our database, Char-Dir Chung authored at least 74 papers between 1995 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Orthogonal Constant-Amplitude Sequence Families for System Parameter Identification in Spectrally Compact OFDM.

Shih-Hao Lu, Char-Dir Chung, Wei-Chang Chen, Ping-Feng Tsou

Wirel. Pers. Commun., January, 2024

Simultaneous Channel Estimation in Multicell Multiuser MIMO OFDM Systems.

Yen-Chia Tseng, Po-Jen Chen, Shih-Hao Lu, Wei-Chang Chei, Char-Dir Chung

Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Random Access Preamble Detection in OFDM Systems Using Constant-Amplitude Sequences.

Po-Jen Chen, Yen-Chia Tseng, Shih-Hao Lu, Wei-Chang Chen, Char-Dir Chung

Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

2023

Performance Analysis of SIMO-OFDM Systems With Pilot-Aided Channel Estimation.

Jy-Chin Liao, Wei-Chang Chen, Char-Dir Chung

IEEE Syst. J., June, 2023

Coarse Initial Time Synchronization for OTFS.

Min-Zhi Xu, Char-Dir Chung, Wei-Chang Chen

Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

Simultaneous Channel Estimation in MIMO OFDM Systems Using Constant-Amplitude Sequences.

Shih-Hao Lu, Char-Dir Chung, Wei-Chang Chen

Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

Iterative Symbol Decision Schemes for CP-OTFS on Static Multipath Channels.

Shuen-Yu Tsai, Wei-Chang Chen, Char-Dir Chung

Proceedings of the International Conference on Computing, Networking and Communications, 2023

2022

Pre-Equalized and Spectrally Precoded OFDM.

Wei-Chang Chen, Char-Dir Chung, Po-Hsien Wang

IEEE Trans. Veh. Technol., 2022

Capacity and turbo equalization for truncated root-raise cosine-pulsed modulation systems in the presence of timing offset.

Wei-I Chiang, Fu-Chuan Hung, Char-Dir Chung

Int. J. Commun. Syst., 2022

Spectrally Precoded OTFS Modulation.

Wei-Chang Chen, Chang-Hung Lu, Char-Dir Chung

Proceedings of the 96th Vehicular Technology Conference, 2022

Iterative Decision-Feedback Hybrid Equalization in SC-FDM.

Li-Yu Ma, Wei-Chang Chen, Char-Dir Chung

Proceedings of the 2022 IEEE 33rd Annual International Symposium on Personal, 2022

2021

GLRT-Based Preamble Sequence Detection in OFDM.

Chieh-Ju Tsai, Wei-Chang Chen, Fu-Chuan Hung, Char-Dir Chung

Proceedings of the 93rd IEEE Vehicular Technology Conference, 2021

2020

Constant-Amplitude Sequences for Spectrally Compact OFDM Training Waveforms.

Char-Dir Chung, Wei-Chang Chen, Chih-Kai Yang

IEEE Trans. Veh. Technol., 2020

Cancellation Symbol Insertion for Spectrally Compact OFDM Pilot Waveform.

Jia-Ling Jiang, Char-Dir Chung, Wei-Chang Chen

Proceedings of the 2020 IEEE Wireless Communications and Networking Conference, 2020

2019

Enhancing User Fairness in NOMA for Downlink CoMP Networks.

Chia-An Ku, Char-Dir Chung

J. Commun., 2019

Selective Transmission Strategy for NOMA in Downlink CoMP.

Char-Dir Chung, Chia-An Ku

Proceedings of the 89th IEEE Vehicular Technology Conference, 2019

Pilot Sequence Design for Spectral Compactness and Channel Estimation in OFDM.

Wei-Chang Chen, Chih-Kai Yang, Po-Tsang Chi, Char-Dir Chung

Proceedings of the 90th IEEE Vehicular Technology Conference, 2019

Cancellation Symbol Insertion Technique for Sidelobe Suppression in OFDM Pilot Waveform.

Wei-Chang Chen, Jia-Ling Jiang, Char-Dir Chung

Proceedings of the 2019 IEEE/CIC International Conference on Communications in China, 2019

2018

Preamble Sequence Design for Spectral Compactness and Initial Synchronization in OFDM.

Char-Dir Chung, Wei-Chang Chen

IEEE Trans. Veh. Technol., 2018

Near-CAZAC Preamble Sequences for Initial Synchronization in Spectrally Compact OFDM.

Cheng-Chen Lin, Wei-Chang Chen, Char-Dir Chung

Proceedings of the 88th IEEE Vehicular Technology Conference, 2018

2017

Spectrally Precoded OFDM Without Guard Insertion.

Char-Dir Chung, Kuo-Wei Chen

IEEE Trans. Veh. Technol., 2017

Spectrally Efficient OFDM Pilot Waveform for Channel Estimation.

Wei-Chang Chen, Char-Dir Chung

IEEE Trans. Commun., 2017

Joint Transmit Beamforming and Power Control for Full-Duplex Cellular Systems.

Pei-Rong Li, Meng-Lin Ku, Char-Dir Chung, Sheng-Hong Wang

Proceedings of the 85th IEEE Vehicular Technology Conference, 2017

2016

Correlatively Precoded OFDM With Reduced PAPR.

Tsung-Wei Wu, Char-Dir Chung

IEEE Trans. Veh. Technol., 2016

Spectral Precoding for OFDM without Guard Interval Insertion.

Char-Dir Chung, Kuo-Wei Chen

Proceedings of the IEEE 83rd Vehicular Technology Conference, 2016

Circulantly precoded OFDM.

Yen-Chin Wang, Po-Heng Chou, Char-Dir Chung

Proceedings of the 2016 IEEE/CIC International Conference on Communications in China, 2016

MISO-OFDM system with subband beamforming.

Shih-Hsun Ma, Yen-Chin Wang, Char-Dir Chung

Proceedings of the 2016 IEEE/CIC International Conference on Communications in China, 2016

Location-Based Time-Dependent Smart Data Pricing by SDN.

Hung-Wen Lin, Meng-Ju Lu, Phone Lin, Po-Heng Chou, Jeu-Yih Jeng, Char-Dir Chung

Proceedings of the 2016 IEEE Global Communications Conference, 2016

2015

Diversity Transmission and Reception of DAPSK for OFDM.

Chi-Hua Huang, Char-Dir Chung

IEEE Trans. Veh. Technol., 2015

Single-Carrier Frequency Division Multiple Access with Anchor-Symbol Insertion.

Teng-Yuan Chang, Po-Heng Chou, Char-Dir Chung

Proceedings of the IEEE 82nd Vehicular Technology Conference, 2015

2014

Differential Space-Time Modulation Using DAPSK Over Rician Fading Channels.

Chi-Hua Huang, Char-Dir Chung

Wirel. Pers. Commun., 2014

Spectrally Precoded DFT-Based OFDM and OFDMA With Oversampling.

Tsung-Wei Wu, Char-Dir Chung

IEEE Trans. Veh. Technol., 2014

Differential space-time modulation using DAPSK.

Chi-Hua Huang, Char-Dir Chung

Proceedings of the 23rd Wireless and Optical Communication Conference, 2014

OFDM with Spectral Precoding and Specific-Band Power Minimization.

Tsung-Wei Wu, Wei-Chang Chen, Yi-Min Huang, Char-Dir Chung, Bingli Jiao

Proceedings of the IEEE 79th Vehicular Technology Conference, 2014

Sparse-training-sequence-aided OFDM systems for CFO effect mitigation.

Chi-Hsiang Tseng, Po-Heng Chou, Char-Dir Chung

Proceedings of the 2014 IEEE/CIC International Conference on Communications in China, 2014

2013

Subspace-Based Blind Channel Estimation for OFDM by Exploiting Cyclic Prefix.

Chi-Hsiang Tseng, Yu-Chieh Cheng, Char-Dir Chung

IEEE Wirel. Commun. Lett., 2013

Concatenated Precoded OFDM for CFO Effect Mitigation.

Chi-Hsiang Tseng, Char-Dir Chung

IEEE Trans. Veh. Technol., 2013

Spectral Precoding for Cyclic-Prefixed OFDMA With Interleaved Subcarrier Allocation.

Wei-Chang Chen, Char-Dir Chung

IEEE Trans. Commun., 2013

Distributed Detection in a Wireless Sensor Network Using Hybrid MAC.

Ju-Chieh Liu, Po-Heng Chou, Char-Dir Chung

Proceedings of the 77th IEEE Vehicular Technology Conference, 2013

2012

Differentially Amplitude- and Phase-Encoded QAM for Amplify-and-Forward Multiple-Relay Systems.

Chi-Hua Huang, Char-Dir Chung

IEEE Trans. Veh. Technol., 2012

Orthogonal Multirate Modulation.

Char-Dir Chung, Wei-Chang Chen

IEEE Trans. Commun., 2012

Realizable Bandlimited DS-CDMA System Occupying Nyquist Bandwidth.

Char-Dir Chung, Wei-Chang Chen, Wei-Lun Lin

IEEE Commun. Lett., 2012

2011

Spectral Sidelobe Decaying Property of Walsh-Hadamard Code in MC-CDMA Systems.

Chia-Ching Lin, Wei-Chang Chen, Char-Dir Chung

IEEE Trans. Wirel. Commun., 2011

Spectrally Precoded OFDM and OFDMA with Cyclic Prefix and Unconstrained Guard Ratios.

Hao-Ming Chen, Wei-Chang Chen, Char-Dir Chung

IEEE Trans. Wirel. Commun., 2011

Distributed Estimation in a Wireless Sensor Network Using Hybrid MAC.

Ju-Chieh Liu, Char-Dir Chung

IEEE Trans. Veh. Technol., 2011

Power-Efficient Distributed Estimation in Hybrid MAC Wireless Sensor Networks.

Ju-Chieh Liu, Char-Dir Chung

Proceedings of the 73rd IEEE Vehicular Technology Conference, 2011

An Improved Spectral Precoding Technique for Constant-Envelope OFDM.

Hao-Ming Chen, Wei-Chang Chen, Char-Dir Chung

Proceedings of the 74th IEEE Vehicular Technology Conference, 2011

2010

Spectral precoding for constant-envelope OFDM.

Char-Dir Chung

IEEE Trans. Commun., 2010

2009

Adaptive differentially coherent orthogonally multiplexed orthogonal phase modulation over flat fading channels.

Wei-Lun Lin, Char-Dir Chung

IEEE Trans. Wirel. Commun., 2009

Asymptotic spectral behavior of spectrally precoded OFDM signal with arbitrary input statistics.

Hao-Ming Chen, Char-Dir Chung

IEEE Commun. Lett., 2009

2008

Constant-power adaptive orthogonally multiplexed modulations under flat Rayleigh fading.

Wei-Lun Lin, Char-Dir Chung

IEEE Trans. Wirel. Commun., 2008

Spectral precoding for rectangularly pulsed OFDM.

Char-Dir Chung

IEEE Trans. Commun., 2008

2007

Lossless Data Hiding of Color Images Using Pixel Decomposition and Phase Difference.

Chang-Lung Tsai, Kuo-Chin Fan, Thomas C. Chuang, Char-Dir Chung

J. Inf. Sci. Eng., 2007

Constant-Power Adaptive Differentially Coherent Orthogonally Multiplexed Orthogonal Phase Modulation for Flat Fading Channels.

Wei-Lun Lin, Char-Dir Chung

Proceedings of the IEEE 18th International Symposium on Personal, 2007

Spectrally Precoded OFDM with Cyclic Prefix.

Char-Dir Chung

Proceedings of IEEE International Conference on Communications, 2007

2006

Noncoherent block detection in the presence of DC offset.

Char-Dir Chung

IEEE Trans. Wirel. Commun., 2006

Correlatively coded OFDM.

Char-Dir Chung

IEEE Trans. Wirel. Commun., 2006

Spectrally Precoded OFDM.

Char-Dir Chung

IEEE Trans. Commun., 2006

2005

Orthogonally multiplexed on-off-keyed amplitude and phase modulation families.

Char-Dir Chung, Horng-Shyang Liaw

IEEE Trans. Wirel. Commun., 2005

Reversible data hiding and lossless reconstruction of binary images using pair-wise logical computation mechanism.

Chang-Lung Tsai, Huei-Fen Chiang, Kuo-Chin Fan, Char-Dir Chung

Pattern Recognit., 2005

Noncoherent Block Detection of Multiple-Pulse Equicorrelated Modulation Signals.

Char-Dir Chung, Shih-Ming Cho

IEICE Trans. Commun., 2005

2004

Data hiding of binary images using pair-wise logical computation mechanism.

Chang-Lung Tsai, Kuo-Chin Fan, Char-Dir Chung, Thomas C. Chuang

Proceedings of the 2004 IEEE International Conference on Multimedia and Expo, 2004

2003

Coherent and differentially coherent detections of orthogonally multiplexed orthogonal phase-modulated signals.

Char-Dir Chung

IEEE Trans. Commun., 2003

2002

Noncoherent maximum-likelihood block detection of orthogonal NFSK-LDPSK signals.

Char-Dir Chung, Fu-Chuan Hung

IEEE Trans. Veh. Technol., 2002

Orthogonally multiplexed orthogonal amplitude modulation family.

Char-Dir Chung

IEEE Trans. Commun., 2002

2001

Diversity codes for differential phase modulation in a correlated Rayleigh fading channel.

Char-Dir Chung, Fuh-Hsin Hwang

IEEE Trans. Commun., 2001

2000

Diversity coding technique for differential phase modulation in a correlated Rayleigh fading channel.

Char-Dir Chung, Fuh-Hsin Hwang

Proceedings of the 11th IEEE International Symposium on Personal, 2000

1999

Differential detection of quadrature frequency/phase modulated signals.

Char-Dir Chung

IEEE Trans. Commun., 1999

1998

Noncoherent detection of preamble-signal-assisted differentially phase-encoded APSK signals.

Char-Dir Chung

IEEE Trans. Commun., 1998

Corrections To "differentially Amplitude And Phase-encoded Qam For The Correlated Rayleigh-fading Channel With Diversity Reception".

Char-Dir Chung

IEEE Trans. Commun., 1998

1997

Differentially amplitude and phase-encoded QAM for the correlated Rayleigh-fading channel with diversity reception.

Char-Dir Chung

IEEE Trans. Commun., 1997

1996

Effects of fading and partial-band noise jamming on a fast FH/BFSK acquisition receiver with noise-normalization combination.

Char-Dir Chung, Ping-Chia Huang

IEEE Trans. Commun., 1996

1995

Parameter estimation of random FH signals using autocorrelation techniques.

Char-Dir Chung, Andreas Polydoros

IEEE Trans. Commun., 1995

Differentially coherent detection technique for direct-sequence code acquisition in a Rayleigh fading mobile channel.

Char-Dir Chung

IEEE Trans. Commun., 1995