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      • 2024

    • Hyunwook Lee and Chungyong Lee, "Rate-Splitting Approach for Downlink Multiuser Relay Systems," ICEIC 2024, Jan. 2024

    • Suhwan Jang and Chungyong Lee, "Near-Field Channel Estimation for Hybrid Massive MIMO-OFDM Systems," ICEIC 2024, Jan. 2024

    • Kwangmyeong Yang and Chungyong Lee, "Base Station Deployment for Path-Aware UAV Communications," ICEIC 2024, Jan. 2024

    • Kyuyeon Lee and Chungyong Lee, "Adaptive Antenna Activation for UAV Communication with Jitter," ICEIC 2024, Jan. 2024


      • 2023

    • Juhyun Park, Seokju Kim and Chungyong Lee, "SE-Based User Clustering for Sum Rate Maximization in Multi-UAV NOMA Networks," ITC-CSCC 2023, Jun. 2023

    • Hyungje Lee, Chahyeon Eom and Chungyong Lee, "QoS-Aware UAV-BS Deployment Optimization Based on Reinforcement Learning," ICEIC 2023, Feb. 2023

    • Sungmo Ku, Kyuyeon Lee and Chungyong Lee, "Interference Mitigation between Remote Base Stations," ICEIC 2023, Feb. 2023


      • 2022

    • Jeongjoon Lee, Chaehun Im and Chungyong Lee, "Robust Beamforming for Multi-beam Satellite Communication Systems with Outage Constraints," ITC-CSCC 2022, Jul. 2022

    • Seokju Kim, Juhyun Park and Chungyong Lee, "CNN-based Doppler Shift Estimation for Low Earth Orbit Satelliteson," ITC-CSCC 2022, Jul. 2022

    • Chaehun Im, Chahyeon Eom, Hyunwook Lee, Suhwan Jang and Chungyong Lee, "Deep LSTM-Based Multimode Pedestrian Dead Reckoning System for Indoor Localization," ICEIC 2022, Feb. 2022

    • Sehwan Choi, Chaehun Im and Chungyong Lee, "Robust First Path Detection Based on Two-Stage CNN for Unspecified UWB Pulse Shape," CCNC 2022, Jan. 2022


      • 2021

    • Seokju Kim, Hyunwook Lee, Sungmo Ku and Chungyong Lee, "Weighted Outer Loop Link Adaptation using TDOA-Based Localization," ITC-CSCC 2021, Jun. 2021

    • Jieun Yu, Hyungje Lee, Chahyeon Eom, and Chungyong Lee, "A Switch Network-Based Adaptive Sub-Connected Hybrid Precoding Architecture in Sub-THz Communications," ITC-CSCC 2021, Jun. 2021

    • Suhwan Jang, Hyunwook Lee and Chungyong Lee, "Convolutional Neural Networks Based Joint AOA/TOF Estimation," ICEIC-2021, Mar. 2021


      • 2020

    • Hyunwook Lee, Chaehun Im, and Chungyong Lee, "A Channel State Information-Based Localization using One-dimensional Convolutional Neural Networks," ICCE-ASIA 2020, pp. 584-587, Nov. 2020

    • Chungho Ryu, Kuk-Kwon Park, Dongju Lee, Chang-Kyung Ryoo and Chungyong Lee, "Sub-munitions’ Dispersion Estimation using Doppler Signals’ Dispersion," ICTC-2020, pp. 543-545, Oct. 2020

    • Chungho Ryu, Joohwan Chun and Chungyong Lee, "MFCW Radar’s Range and Velocity Estimation using Local Polynomial Approximation Based Function," ICTC-2020, pp. 1657-1659, Oct. 2020

    • Hyungje Lee, Chahyeon Eom, Hyojin Lee and Chungyong Lee, "Autoencoder based Communication System using Multi-Dimensional Constellations," ITC-CSCC 2020, pp. 481-484, Jul. 2020

    • Sunghoon Jung, Chaehun Im, Chahyeon Eom and Chungyong Lee, "A Localization Method with Insufficient RSS samples using Neural Network," ICAIIC 2020, pp. 272-275, Feb. 2020

    • Chahyeon Eom and Chungyong Lee, "A Deep Neural Network-Based LOS Classification for Triangulation Positioning," ICAIIC 2020, pp. 598-601, Feb. 2020

    • Chaehun Im, Sunghoon Jung and Chungyong Lee, "A Deep Autoencoder Approach to Received Signal Strength-Based Localization with Unknown Channel Parameters," ICAIIC 2020, pp. 152-154, Feb. 2020


      • 2019

    • Sungmo Ku, Sangwon Jung and Chungyong Lee, "UAV Trajectory Design Based on Reinforcement Learning for Wireless Power Transfer," ITC-CSCC 2019, Jun. 2019

    • Sunghoon Jung, Chaehun Im, Chahyeon Eom and Chungyong Lee, "Noise Reduction after RIR removal for Speech De-reverberation and De-noising," ITC-CSCC 2019, Jun. 2019

    • Donghyeok Jung, Chahyeon Eom and Chungyong Lee, "Discrete Cuckoo Search Algorithm for MIMO Detection," ITC-CSCC 2019, Jun. 2019


      • 2018

    • Jin-Young Lee, Chahyeon Eom, Youngsu Kwak, Hong-Goo Kang and Chungyong Lee, "DNN-based Wireless Positioning in an Outdoor Environment," ICASSP 2018, Apr. 2018

    • Yonggue Han and Chungyong Lee, "Simultaneous Wireless Information and Power Transfer with Pulse Energy Modulation based on Tomlinson-Harashima Precoding," ICEIC 2018, Jan. 2018

    • Chahyeon Eom, Hong-Goo Kang and Chungyong Lee, "An Enhanced Fingerprint-based Localization Exploiting Kalman Filter with Refined Data," ICGHIT 2018, Jan. 2018

    • Chaehun Im, Youngsu Kwak and Chungyong Lee, "An Advanced Fingerprint-based Localization with Radial Basis Function Interpolation," ICGHIT 2018, Jan. 2018


      • 2017

    • Bongsung Seo, Dongkyu Sim and Chungyong Lee, "Low-Complexity Sub-block MMSE Receiver for FBMC-QAM Systems," ICEIC 2017, Jan. 2017

    • Taehyun Lee and Chungyong Lee, "A Signal-level Channel Equalization for FBMC-QAM Systems," ICEIC 2017, Jan. 2017


      • 2016

    • Taehyun Lee and Chungyong Lee, "Per-tone MMSE receiver for MIMO FBMC-QAM systems," IEEE ICCE, pp. 1-4, Oct. 2016

    • Yeonghwan Kim, Kuhyung Kwon and Chungyong Lee, "Comparison on Uplink Transmission Protocols for Two-User Wireless Powered Communication Network," ITC-CSCC 2016, Jul. 2016

    • Sangwon Jung, Yonggue Han and Chungyong Lee, "Antenna Selection for Energy Efficiency in MIMO Wireless Energy Transfer Systems," ITC-CSCC 2016, Jul. 2016

    • Dongkyu Sim, Taehyun Lee, Kyeongyeon Kim and Chungyong Lee, "Performance Comparison of Linear MMSE Receivers for FBMC-QAM," ICEIC 2016, Jan. 2016

    • Yonggue Han and Chungyong Lee, "Energy Efficient Statistical Mode Selection in Full-Duplex Bidirectional Communications," ICEIC 2016, Jan. 2016

    • Sanggeun Lee and Chungyong Lee, "A Band Switching Scheme for BLER Performance Improvement in Flexible Duplex Systems," ICEIC 2016, Jan. 2016


      • 2015

    • Kuhyung Kwon, Hyunjong Na and Chungyong Lee, "User Mode Selection for Sum-Rate Maximization in Full-Duplex Two-User Systems ," The 30th International Technical Conference on Circuits/Systems, Computers and Communications, Jun. 2015

    • Hyunjong Na and Chungyong Lee, "Performance Comparison of Precoding Schemes for Full Duplex Communication in Full Duplex Two User MIMO Downlink Channel ," ICEIC 2015 , Jan. 2015


      • 2014

    • Seongmok Lim, Dongkyu Sim and Chungyong Lee, "Two-Step Estimation Method for a Single Staggered Pulse Repetition Interval," The 29th International Technical Conference on Circuits/Systems, Computers and Communications, Jul. 2014

    • Taehyun Lee, Yongjin Ahn, Dongkyu Sim and Chungyong Lee, "QAM-FBMC System With a Robust Prototype Filter in Multipath Fading Channels," IEEE Consumer Electronics Society, Jun. 2014


      • 2013

    • Misun Yoon and Chungyong Lee, "A Quantized TR Prefilter for Indoor Wireless Communication System With Channel Estimation Error," IEEE ICTC 2013, pp. 207-211, Oct. 2013

    • Dongkyu Sim, Seungkyu Choi and Chungyong Lee, "Simplified MMSE Equalizer With the Time Reversal Pre-filter for the Ultra Wideband (UWB) System," ICEIC 2013, Feb. 2013

    • Seungkyu Choi, Dongkyu Sim and Chungyong Lee, "Lattice-Reduction-Aided BD-UCD Transceiver Design in the Downlink MU-MIMO Channel," ICEIC 2013, Feb. 2013

    • Hoondong Noh and Chungyong Lee, "Binary Power Allocation for Maximizing Sum Rate of Multiple Interfering Links Under Minimum Rate Constraints," ICEIC 2013, Feb. 2013


      • 2012

    • Ilgyu Choi and Chungyong Lee, "Effective Rate Maximization in Large MIMO Multiuser System," CEWIT 2012, pp. 1-5, Nov. 2012

    • Bumsoo Lee and Chungyong Lee, "A Joint Precoding Scheme for MIMO Systems With Distributed Single Antenna AF Relays," IEEE ICTC 2012, pp. 666-670, Oct. 2012

    • Yongjin Ahn, Ilgyu Choi and Chungyong Lee, "Piece-wise Linear Look Up Table Predistorter for Power Amplifier Linearization Technique," ICEIC 2012, Feb. 2012

    • Sangwon Park, Hoondong Noh and Chungyong Lee, "Comparison of Near-field Localization Methods for ULA : Beamforming and Hyperbolic Source Localization," ICEIC 2012, Feb. 2012

    • Dohoon Kim, Jungwook Wee and Chungyong Lee, "An MB-OFDM UWB Technology for Wireless Speaker Systems," IEEE ICCE, pp.388-389, Jan. 2012


      • 2011

    • Hoondong Noh, Seungkyu Choi and Chungyong Lee, "An Iterative MMSE-ML Detector for MIMO SC-FDMA System," IEEE MWSCAS, 1-4, Aug. 2011

    • Wonwoo Park and Chungyong Lee, "The Estimated Distribution of Detected Symbols at Relay Station Using Pairwise Error Probability," ITC-CSCC 2011, pp.843-845, Jun. 2011

    • Dohoon Kim, Yongseok Lim, Jinwoong Cho and Chungyong Lee, "Design and Implementation of MB-OFDM UWB Modem," IEEE ICCE, pp. 430-431, Jan. 2011


      • 2010

    • Jeehwan Noh, Hyemin Song and Chungyong Lee, "Transmit Antenna and Mode Selection for the EST Based MIMO Systems," IEEE ICTC 2010, pp. 45-49, Nov. 2010


      • 2009

    • Kyeongyeon Kim, Joondoo Kim and Chungyong Lee, "A User Power Allocated Block Tomlinson-Harashima Precoding," ITC-CSCC 2009, 1426-1428, Jul. 2009


      • 2008

    • Jiwon Kang, Hyungwoo Ku, Dong-Seung Kwon and Chungyong Lee, "An Improved Tomlinson-Harashima Precoder Reducing Transmission Power," IEEE GLOBECOM 2008, 1-5, Dec. 2008

    • Hyunil Kwon, Jookwang Kim, Sangmin Bae, Kyungho Kim, and Chungyong Lee, "The Regularized FPGA Development Platform Verification Flow for Wireless Mobile Soc," ITC-CSCC 2008, Jul. 2008

    • Myoung-Seok Kim, Myeongcheol Shin, Wonwoo Park and Chungyong Lee, "Quantized Precoding Techniques for Spatially Correlated Channels without Correlation Feedback," ITC-CSCC 2008, Jul. 2008

    • Byungwook Yoo, Kyu Ha Lee, Hyundo Kim and Chungyong Lee, "Linear Precoding Techniques for 2-Hop MIMO Relaying," ITC-CSCC 2008, Jul. 2008

    • Joondoo Kim, Jiwon Kang, Dong-Seung Kwon and Chungyong Lee, "An Improved Block Tomlinson-Harashima Precoder for Multiuser MIMO Systems," ITC-CSCC 2008, Jul. 2008


      • 2007

    • Jaesang Ham, Byungwook Yoo and Chungyong Lee, "An Efficient MIMO Receiver for Full-Diversity Full-Rate Space-Time Code," IEEE Globecom 2007 Washington, DC, USA, Nov. 2007

    • Jiwon Kang, In Kyeong Choi, Dong-Seung Kwon and Chungyong Lee, "An Opportunistic Beamforming Technique Using a Quantized Codebook," IEEE VTC 2007 spring, pp. 1647-1651, Apr. 2007

    • Byungwook Yoo, Kyu Ha Lee, and Chungyong Lee, "Implementation of IEEE 802.16e MIMO-OFDMA Systems With K-BEST Lattice Decoding Algorithm," ICCE 2007, Jan. 2007


      • 2006

    • Sangheon Kim and Chungyong Lee, "Iterative Receiver for MIMO Systems With Hybrid Detector," IEEE PIMRC 2006 Helsinki, Sep. 2006

    • Jaesang Ham, Kyeongyeon Kim, Seijoon Shim and Chungyong Lee, "An Efficient Adaptive Modulation Algorithm for D-STTD system," IEEE VTC 2006 Fall, Montreal, Sep. 2006

    • Myeongcheol Shin, Dong-Seung Kwon and Chungyong Lee, "Performance Analysis of Maximum Likelihood Detection for MIMO Systems," IEEE VTC 2006 spring, May. 2006

    • Kyeongyeon Kim, Seijoon Shim, Jaesang Ham and Chungyong Lee, "Asymptotic Analysis of Downlink MIMO Multicarrier CDMA systems With a Minimum Mean Square Error Receiver," IEEE VTC 2006 spring, May. 2006

    • Jiwon Kang, Hakju Lee, Chungyong Lee and Young Yong Kim, "A Scheduling Scheme Under a Ratio Constraint for the Multiuser," IEEE VTC 2006 spring, 2449-2453, May. 2006


      • 2005

    • Sangheon Kim, Sunghun Jung, Sangwoo Lee and Chungyong Lee, "Performance of MIMO-FQPSK Receiver with MLSE," IEEE VTC 2005 spring, May. 2005

    • Hakju Lee, Myeongcheol Shin and Chungyong Lee, "An Eigen-based MIMO Multiuser Scheduler robust to spatial channel correlation," Proc. Vehicular Technology Conference 2005 Spring, May. 2005

    • Jaesang Ham, Kyeongyeon Kim, Seijoon Shim, Chungyong Lee and Jaehak Chung, "A New Multiuser Diversity Scheme Exploiting Detection Order for AM-OSIC System," IEEE VTC 2005 spring, May. 2005


      • 2004

    • Hee-Young Park, Dae-Hee Youn, Chungyong Lee, Hyun Woo Kang, Ki-Man Kim and Kyeong-Cheol Dho, "Evaluation of the Calibration Method Using Iterative Spline Interpolation for Array Shape Estimation," OCEANS/Technoocean2004, pp. 593-597, Nov. 2004

    • Thomas Eriksson, Samuel Kim, Hong-Goo Kang and Chungyong Lee, "Theory for Speaker Recognition Over IP," Proc. of INTERSPEECH 2004-ICSLP, pp. 625-628, Oct. 2004

    • Kyeongyeon Kim, Jaesang Ham, Chungyong Lee and Daesik Hong, "Performance Analysis of a Downlink MIMO MC-CDMA system with Turbo Coding and Channel Interleaving," Proc. Vehicular Technology Conference 2004 Fall, pp. 1439-1442, Sep. 2004

    • Jeong-Hoe Ku, Seijoon Shim, Min-Goo Kim and Chungyong Lee, "Low Complexity Optimal Interference Rejection Weight for Multipath Interference Canceller," IEEE VTC 2004 fall, pp. 2335-2338, Sep. 2004

    • Yoonjoo Kwon, Kyungho Kim, Myeongcheol Shin and Chungyong Lee, "An Efficient Code Timing Acquisition for MIMO CDMA System," IEEE VTC 2004 spring, May. 2004

    • Joonsung Lee, Chungyong Lee, Byungjin Chun and Changheon Oh, "A Downlink Beamforming Mehod for Coherent Detection in DS/CDMA Systems," IEEE VTC 2004 spring, May. 2004


      • 2003

    • Joonsung Lee, Charigheon Oh and Chunayong Lee, "A Reverse Link Beamforming Based on Simplex Downhill Algorithm for Time-varying Channel Environments," VTC 2003-Fall, vol. 1, pp. 232-235, Oct. 2003

    • Yang-Won Jung, Junho Lee, Donggeon Kong, Jaywoo Kim and Coungyong Lee, "High-Quality Speech Acquisition and Recognition System for Home-Agent Robot," International conference on consumer electronics, 2003 Summer, Jun. 2003

    • Seungyeun Yoo, Sangheon Kim, Dae-Hee Youn and Chungyong Lee, "Multipath Mitigation Technique Using Null-Steering Beamformer for Positioning System," IEEE VTC 2003 spring, pp.601-605, Apr. 2003

    • Myeongcheol Shin, Hakju Lee and Chungyong Lee, "A New Training Symbol Structure to Enhance the Performance of Channel Estimation for MIMO-OFDM Systems," IEEE ICASSP 2003, Apr. 2003


      • 2002

    • Hee-Young Park, Kyeong-Cheol Dho, Won Tchon Oh, Dae-Hee Youn and Chungyong Lee, "Towed Array Shape Estimation Using a Single Reference Source," UDT KOREA 2002, P1.10, Oct. 2002

    • Hee-Young Park, Won Tchon Oh, Seung-Yong Chun, Dae-Hee Youn, and Chungyong Lee, "Performance Comparison of the Calibration Method Using Spline Interpolation for Array Shape Estimation," UDT KOREA 2002, 4A.2, Oct. 2002

    • Hee-Young Park, Won Tchon Oh, Dae-Hee Youn and Chungyong Lee, "A Subspace-Based Array Shape Estimation Method Using a Single Reference Source in Nearfield," MTS/OCEANS2002, pp. 2210-2215, Oct. 2002

    • Seijoon Shim, Jin-Sung Choi, Chungyong Lee and Dae-Hee Youn, "Rank Adaptive Transmission to Improve the Detection Performance of the BLAST in Spatially Correlated MIMO Channel," IEEE VTC 2002 fall, vol. 1, pp 195-198, Sep. 2002

    • Yangseok Jeong, Heungryeol You and Chungyong Lee, "A High Resolution Time Delay Estimation Technique in Frequency Domain for Positioning System," IEEE VTC 2002 fall, vol. 4, pp 2318-2321, Sep. 2002


      • 2001

    • Hee-Young Park, Won Tchon Oh, Dae-Hee Youn and Chungyong Lee, "Performance Improvement of Array Shape Estimation Using Spline Interpolation," Oceans2001 MTS/IEEE Conference and Exhibition, pp. 1715-1718, Nov. 2001

    • Seungil Kim, Dho, K., Dae Hee Youn and Chungyong Lee, "Linearization Procedure for a Perturbed Linear Array," Oceans2001 MTS/IEEE Conference and Exhibition, vol. 3, pp. 1586 –1589, Nov. 2001

    • Seungchul Yang, Dae Hee Youn and Chungyong Lee, "LMS Based Forward-Link Beamforming Using Reverse-Link Channel Estimator in FDD/CDMA System," IEEE VTC 2001 fall, vol. 1, pp. 1640-1643, Oct. 2001

    • Kyu Ha Lee, Dae Hee Youn and Chungyong Lee, "An Area-Efficient Interpolation Filter Using Block Structure," Intl. Conf. on Electronics Circuits Syst., Malta, pp.925-927, Sep. 2001

    • Seijoon Shim, Sung-Hun Jung, Dae-Hee Youn and Chungyong Lee, "The Projection Matrix Method For The Interference Cancellation," Vehicular Technology Conference 2001 Spring, Greece, Proceedings of VTC2001, vol. 3, pp. 1563-1567, May. 2001

    • Seon Joon Park, Chum Gun Cho, Chungyong Lee and Dae Hee Youn, "On Integrating Acoustic Echo and Noise Cancellation Systems for Hands-Free Telephony," in Proc. Intl. Conf. Acoustics Speech Sig. Process., Salt Lake City, Utah, USA, pp. 961-964, May. 2001

    • Yangseok Jeong, Heungryeol You and Chungyong Lee, "Calibration of NLOS Error for Positioning Systems," IEEE VTC 2001 spring, vol. 3, pp. 1563-1567, May. 2001


      • 2000

    • Bong Seok Kang, Chul-Hee Han, Chungyong Lee and Dae-Hee Youn, "Recognizing Six Emotional States Using Speech Signals," in Proceding of the 2000 Spring Conference of KOSES & International Sensibility Ergonomics Symposium, pp. 366-369, Jun. 2000

    • Sang-Hoon Lim, Cha Hee Yoo, Yang-Soo Shin, Dae Hee Youn and Chungyong Lee, "CMA Post-Processing Technique for Interference Suppression in DS-CDMA Systems," VTC2000, vol. 2, pp. 1125-1129, May. 2000

    • Yangseok Jeong, Heungryeol You, Won Cheol Lee, Daesik Hong, Dae Hee Youn and Chungyong Lee, "A Wireless Position Location System Using Forward Pilot Signal," VTC2000 spring, vol. 2, pp. 1354-1357, May. 2000


      • 1998

    • Won-Ho Shin, Weon-Goo Kim, Chungyong Lee and Il-Whan Cha, "Speech Recognition in Noisy Environment Using Weighted Projection-Based Likelihood Measure," Proc. Int. Conf. Spoken Language Processing, vol. 4, pp.1503-1506, Nov. 1998

    • Tae-Young Yang, Ji-Sung Kim, Chungyong Lee, Dae Hee Youn and Il-Whan Cha, "Duration Modeling Using Cumulative Duration Modeling and Speaking Rate Compensation," Proc. Int. Conf. Spoken Language Processing, vol. 7, pp.3007-3010, Nov. 1998

    • Won-Ho Shin, Tae-Young Yang, Weon-Goo Kim, Chungyong Lee and Il-Whan Cha, "Speech Recognition Using Weighted Projection-Based Likelihood Measure of Cepstral-Time Feature and Energy-Time Feature," Proc. Int. Tech. Conf. Circuits/Systems, Computers, Communications, vol. 1, pp.665-668, Jul. 1998

    • H.J.Sung, K.H. Ju, K.M. Kim, Chungyong Lee and D.H. Youn, "A Filter Structure for Target Signal Enhancement in Reverbration-Limited Environment," Proceedings of ITC-CSCC, Vol. 1, pp.597-600, Jul. 1998


      • 1995

    • Jaejin Lee, Chungyong Lee and Douglas B. Williams, "Secure Communication Using Chaos," Proceedings of IEEE Globecom, Nov. 1995

    • Chungyong Lee and Douglas B. Williams, "A Noise Reduction Method for Chaotic Signals," Proceedings of IEEE Int. Conf. On Acoust. Speech Signal Proc, May. 1995

    • Chungyong Lee, Jaejin Lee and Douglas B. Williams, "A Secure Communication Scheme Using Chaotic Signal," Proceedings of IEEE Int. Conf. On Computer Communication, . 1995


      • 1994

    • Chungyong Lee and Douglas B. Williams, "Preprocessing for Noise Reduction of Chaotic Signals," Proceedings of IEEE 6th Digital Signal Processing Workshop, Oct. 1994