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Department of Electrical and Information Engineering
홈 영문-일반대학원 Department Department of Electrical and Information Engineering Faculty
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Name
 Kyungchun Lee
MAJOR
 Wireless Communication
TEL
 02-970-6405
E-mail
 kclee@seoultech.ac.kr
Biography
Ph.D. in Electrical Engineering, Feb. 2007 KAIST, Daejeon, South Korea
M.S. in Electrical Engineering, Feb. 2002 KAIST, Daejeon, South Korea
B.S. in Electrical Engineering, Feb. 2000 KAIST, Daejeon, South Korea
Careers
Awards:
Best Paper Award, IEEE Wireless Communications and Networking Conference (WCNC), 2020
Best Paper Award, IEEE International Conference on Communications (ICC), 2009

Employment and Experience:
Sep. 2010 - Present
Dept. of Electrical Engineering and Information Technology, Seoul National University of Science and Technology (SeoulTech)

Visiting Assistant Professor, Jan. 2017 - Jan. 2018
North Carolina State University, Raleigh, USA.

Senior engineer, July 2008 – Aug. 2010
Samsung Electronics, South Korea.
Commercial LTE system development (PHY and MAC layer, system level performance evaluation)

Post-doctoral research fellow, Apr. 2007 – June 2008
University of Southampton, U.K.
Supervisor: Prof. Lajos Hanzo
Research on cooperative and relay-aided communication systems

Graduate student researcher, Mar. 2000 – Feb. 2007
KAIST, Daejeon, South Korea
Supervisor: Prof. Joohwan Chun
Research on MIMO and OFDM systems

Visiting research student, Sep. 2005 – Feb. 2006
University of Southampton, U.K.
Supervisor: Prof. Lajos Hanzo
Research on detection algorithms for MIMO systems
Research Areas
Wireless communication
Applied machine learning
Massive MIMO
Cooperative communication
Intelligent reflecting surface
Terahertz communication
Journal Papers
◾ Bitmask Dynamic Programming for User Scheduling in Multi-User MIMO mmWave Systems, IEEE Communications Letters, 2023이경천
◾ Short-Packet URLLCs for MIMO Underlay Cognitive Multihop Relaying With Imperfect CSI, IEEE ACCESS, vol.11 pp.81672~81689, 2023이경천
◾ Downlink Beamforming for Dynamic Metasurface Antennas, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.22 No.7 pp.4745~4755, 2023이경천
◾ Low-Complexity IRS Beamforming Based on Sphere Decoding and Tabu Search, JOURNAL OF COMMUNICATIONS AND NETWORKS, vol.25 No.3 pp.299~311, 2023이경천
◾ Low-Complexity Adaptive Selection Beamforming for IRS-Assisted Single-User Wireless Networks, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.72 No.4 pp.5458~5462, 2023이경천
◾ Joint hybrid-precoding design for MU-MISO systems with a subconnected architecture, EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, vol.2023 No.1, 2023이경천
◾ Low-Complexity Beamforming Algorithms for IRS-Aided Single-User Massive MIMO mmWave Systems, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.21 No.11 pp.9200~9211, 2022이경천
◾ Deep Learning-Aided Signal Enumeration for Lens Antenna Array, IEEE Access, vol.10 pp.123835~123846, 2022이경천
◾ Hybrid Beamforming and Adaptive RF Chain Activation for Uplink Cell-Free Millimeter-Wave Massive MIMO Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.71 No.8 pp.8739~8755, 2022이경천
◾ Hybrid Relay-Reflecting Intelligent Surface-Assisted Wireless Communications, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.71 No.6 pp.6228~6244, 2022이경천
◾ Performance Analysis and Optimization of Multihop MIMO Relay Networks in Short-Packet Communications, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.21 No.6 pp.4549~4562, 2022이경천
◾ Machine-Learning-Aided Link-Performance Prediction for Coded MIMO Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.71 No.3 pp.3287~3292, 2022이경천
◾ Deep Learning-Aided Coherent Direction-of-Arrival Estimation With the FTMR Algorithm, IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol.70 pp.1118~1130, 2022이경천
◾ Hybrid Combining Based on Selective Activation of Double Constant Phase Shifters, IEEE Access, vol.9 pp.142012~142019, 2021이경천
◾ Application of Deep Learning to Sphere Decoding for Large MIMO Systems, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.20 No.10 pp.6787~6803, 2021이경천
◾ Intelligent Radio Signal Processing: A Survey, IEEE Access, vol.9 pp.83818~83850, 2021이경천
◾ Dynamic Unequally Sub-Connected Hybrid Beamforming Architecture for Massive MIMO Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.70 No.4 pp.3469~3478, 2021이경천
◾ Deep learning-aided tabu search detection for large MIMO systems, IEEE Transactions on Wireless Communications, 2020이경천
◾ Adaptive Perturbation-Aided Opportunistic Hybrid Beamforming for mmWave Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.69 No.6 pp.6554~6562, 2020이경천
◾ Low-Complexity Incremental Search-Aided Hybrid Precoding and Combining for Massive MIMO Systems, IEEE ACCESS, vol.8 pp.66867~66877, 2020이경천
◾ Learning-Aided Deep Path Prediction for Sphere Decoding in Large MIMO Systems, IEEE ACCESS, vol.8 pp.70870~70877, 2020이경천
◾ Hybrid Combining Based on Constant Phase Shifters and Active/Inactive Switches, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.69 No.4 pp.4058~4068, 2020이경천
◾ Unequally Sub-Connected Architecture for Hybrid Beamforming in Massive MIMO Systems, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.19 No.2 pp.1127~1140, 2020이경천
◾ Groupwise Neighbor Examination for Tabu Search Detection in Large MIMO Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.69 No.1 pp.1136~1140, 2020이경천
◾ Search Space Partitioning-based Receiver for Generalized Spatial Modulation under Channel Information Errors, 한국정보통신학회논문지, vol.23 No.12 pp.1631~1637, 2019이경천
◾ Opportunistic Precoding based on Adaptive Perturbation for MIMO Systems, 한국정보통신학회논문지, vol.23 No.12 pp.1638~1643, 2019이경천
◾ Energy-Efficient Hybrid Beamforming with Variable and Constant Phase Shifters, APPLIED SCIENCES-BASEL, vol.9 No.21, 2019이경천
◾ Adaptive Threshold-Aided K-Best Sphere Decoding for Large MIMO Systems, APPLIED SCIENCES-BASEL, vol.9 No.21, 2019이경천
◾ QR-Decomposition-Aided Tabu Search Detection for Large MIMO Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.68 No.5 pp.4857~4870, 2019이경천
◾ Ordering- and partitioning-aided sphere decoding for generalized spatial modulation, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.67 No.10 pp.10087~10091, 2018이경천
◾ Coverage and Cell-Edge Sum-Rate Analysis of mmWave Massive MIMO Systems With ORP Schemes and MMSE Receivers, IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol.66 No.20 pp.5349~5363, 2018이경천
◾ Adaptive Perturbation-Aided Opportunistic Beamforming, IEEE COMMUNICATIONS LETTERS, vol.22 No.8 pp.1660~1663, 2018이경천
◾ Low-Complexity Sphere Search-Based Adaptive Spatial Modulation, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.67 No.8 pp.7836~7840, 2018이경천
◾ Generalized Buffer-State-Based Relay Selection With Collaborative Beamforming, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.67 No.2 pp.1245~1257, 2018이경천
◾ Cell Coverage Extension With Orthogonal Random Precoding for Massive MIMO Systems, IEEE ACCESS, vol.5 pp.5410~5424, 2017이경천
◾ Tx/Rx-ordering-aided efficient sphere decoding for generalized spatial modulation systems, 한국정보통신학회논문지, vol.21 No.3 pp.523~529, 2017이경천
◾ Low-Complexity Robust ML Signal Detection for Generalized Spatial Modulation, 한국정보통신학회논문지, vol.21 No.3 pp.516~522, 2017이경천
◾ Non-cooperative interference alignment for multicell multiuser MIMO uplink channels, IET COMMUNICATIONS, vol.11 No.5 pp.648~654, 2017이경천
◾ Interference Alignment for Multicell Multiuser MIMO Uplink Channels, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.65 No.7 pp.5146~5159, 2016이경천
◾ A Low-Complexity Sphere Decoding Algorithm for Generalized Spatial Modulation, 한국정보통신학회논문지, vol.20 No.1 pp.30~36, 2016이경천
◾ A Robust Receiver for Generalized Spatial Modulation under Channel Information Errors, 한국정보통신학회논문지, vol.20 No.1 pp.45~51, 2016이경천
◾ Lattice reduction aided tabu search with channel-dependent stopping criterion for MIMO systems, ELECTRONICS LETTERS, vol.51 No.24 pp.2062~2063, 2015이경천
◾ Low-Complexity SIC Detection Algorithms for Multiple-Input Multiple-Output Systems, IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol.63 No.17 pp.4625~4633, 2015이경천
◾ Selective cooperative decoding based on a hard-decision-aided log-likelihood ratio approximation, IET COMMUNICATIONS, vol.9 No.14 pp.1754~1762, 2015이경천
◾ Doubly Ordered Sphere Decoding for Spatial Modulation, IEEE COMMUNICATIONS LETTERS, vol.19 pp.795~798, 2015이경천
◾ Novel decoding algorithms for decode-and-forward cooperative beamforming systems, IET COMMUNICATIONS, vol.8 No.17 pp.3012~3018, 2014이경천
◾ Uplink Interference Alignment for Two-Cell MIMO Interference Channels, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.62 pp.1861~1865, 2013이경천
◾ RESOURCE-EFFICIENT WIRELESS RELAYING PROTOCOLS, IEEE WIRELESS COMMUNICATIONS, vol.17 No.2 pp.66~72, 2010이경천
◾ Optimal Decoding for Hard-Decision Forwarding Aided Cooperative Spatial Multiplexing Systems, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.8 pp.4411~4416, 2009이경천
◾ Initial Code Acquisition in the Cooperative Noncoherent MIMO DS-CDMA Downlink, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.58 No.3 pp.1387~1395, 2009이경천
◾ MIMO-Assisted Hard Versus Soft Decoding-and-Forwarding for Network Coding Aided Relaying Systems, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.8 No.1 pp.376~385, 2009이경천
◾ ML symbol detection based on the shortest path algorithm for MIMO systems, IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol.55 pp.5477~5484, 2007이경천
◾ Optimal lattice-reduction aided successive interference cancellation for MIMO systems, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.6 pp.2438~2443, 2007이경천
◾ A MIMO antenna structure that combines transmit beamforming and spatial multiplexing, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.6 pp.775~779, 2007이경천
◾ Symbol detection in V-BLAST architectures under channel estimation errors, IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.6 pp.593~597, 2007이경천
◾ Frequency-offset estimation for MIMO and OFDM systems using orthogonal training sequences, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.56 pp.146~156, 2007이경천
Conference Papers
◾ 응오항뚜, 이경천, 다중 지능형반사표면 기반의 셀탈피 밀리미터 대규모 다중입출력 시스템: 긴 패킷 eMBB 및 짧은 패킷 uRLLC?, 2023년 한국방송·미디어공학회 추계학술대회, 서울, 2023이경천
◾ Ngo Hoang Tu, Kyungchun Lee, Performance Analysis and Deep-Learning-Based Real-Time Evaluation for Multihop MIMO Full-Duplex Relay Networks with Short-Packet URLLCs, International Conference on Control, Automation and Systems, 전라남도 여수시, 2023이경천
◾ Ngo Hoang Tu, Hoang Trong Dai, and Kyungchun Lee, Performance Analysis of MIMO CR Multihop Relaying with Imperfect CSI in Short-Packet URLLCs, International Conference on Information and Communication Technology Convergence, 대한민국 제주시, 2023이경천
◾ Seraphin Kimaryo, Eduard E. Bahingayi, Kyungchun Lee, Active and passive beamforming based on RWMMSE and Gradient Projection for IRS-aided MU-MISO Systems, International Conference on Information and Communication Technology Convergence, 대한민국 제주시, 2023이경천
◾ Dai Trong Hoang, Kyungchun Lee, Coherent Signal Enumeration based on Deep Learning and the FTMR Algorithm, IEEE International Conference on Communications, Seoul, Korea, 2022이경천
◾ 송준석, 이경천, 채널부호화 MIMO 시스템에서 리스트 타부 탐색을 이용한 신호 복호, 정보 및 제어 학술대회, 여수, 2021이경천
◾ 최상지, 이경천, 일반화 공간 변조 시스템에서 타부 탐색을 이용한 신호 검출, 정보 및 제어 학술대회, 여수, 2021이경천
◾ Nhan Thanh Nguyen, Quang-Doanh Vu, Kyungchun Lee, Markku Juntti, Spectral Efficiency Optimization for Hybrid Relay-Reflecting Intelligent Surface, IEEE International Conference on Communications Workshops, Montreal, 캐나다, 2021이경천
◾ Eduard E. Bahingayi, Kyungchun Lee, Energy-efficient Hybrid Combining Based on Active/Inactive Switches, International Conference on Electric-Vehicle, SmartGrid and Information Technology (ICESI 2020), 온라인, 2020이경천
◾ Eduard Elias Bahingayi ; Kyungchun Lee, Low-complexity hybrid precoding and combining scheme based on array response vectors, IEEE Wireless Communications and Networking Conference, Seoul, Korea Conference, 2020이경천
◾ Thuan Van Le ; Kyungchun Lee, Opportunistic hybrid beamforming based on adaptive perturbation for mmWave multi-User MIMO systems, IEEE Wireless Communications and Networking Conference, Seoul, Korea, 2020이경천
◾ 이형영, 박영웅, 김종민, 문현우, 이경천, 일반화 공간변조 시스템을 위한 이중 순서화를 적용한 저복잡도 구복호 알고리즘, 추계종합학술발표회, 중앙대학, 2016이경천
◾ 이재성, 우대위, 전은탁, 윤성민, 이경천, 채널 정보 오차 존재 환경에서 일반화 공간변조 시스템을 위한 최대우도 수신기, 한국통신학회 2015년도 추계종합학술발표회, 서울대학교, 2015이경천
◾ 유남식, 백종현, 최현영, 김영주, 김건엽, 이경천, 다중안테나 기반 철도 통신에서 채널 정보 오차에 강인한 최대우도 신호 검출, 한국통신학회 2015년 하계종합학술발표회, 제주, 2015이경천
◾ Khanh Pham, Kyungchun Lee, An interference alignment scheme for symmetric multicell multiuser channels, IEEE Vehicular Technology Conference, 서울, 2014이경천
Patents
◾ 반복적인 타부 서치를 이용한 다중 안테나 통신시스템의 연판정 디코딩 장치 및 방법(다중입출력시스템에서 연판정 복호를 위한 반복 타부 탐색), 특허 등록, 대한민국, 2018이경천
◾ 공간변조를 위한 이중 순서 스피어 디코딩 장치 및 방법, 특허 등록, 대한민국, 2017이경천
◾ 자유도를 향상시키는 간접 정렬 장치 및 방법, 특허 등록, 대한민국, 2017이경천
◾ 직접 신호가 고려된 협력적 공간 멀티플렉싱 시스템의 중계 노드 선택 장치 및 방법, 특허 등록, 대한민국, 2017이경천
◾ 포워딩 에러가 고려된 협력적 공간 멀티플렉싱 시스템의 중계 노드 선택 장치 및 방법, 특허 등록, 대한민국, 2016이경천
◾ 비협력적 선형 간섭 정렬 장치 및 방법, 특허 등록, 대한민국, 2016이경천
◾ 협력적 빔포밍 시스템을 위한 최적 및 준최적 에러 디코딩 장치 및 방법, 특허 등록, 대한민국, 2015이경천
◾ 효율성이 높은 최적 및 준최적 계승적 간접 취소 장치 및 방법, 특허 등록, 대한민국, 2015이경천
◾ 이동통신 시스템에서의 상향 링크?, 특허 등록, 대한민국, 2014이경천
Projects
◾ DC 마이크로그리드 기반 IoE 핵심기술 개발, 산학협력단, 2019.06.~2022.02.이경천
◾ 전기정보기술연구소, 한국연구재단, 2019.06.~2024.02.이경천
◾ 기계학습을 이용한 대규모 다중입출력 시스템 최적화 연구, 한국연구재단, 2019.06.~2022.02.이경천
◾ 일반화 공간변조 시스템에서 채널 정보 오차를 고려한 탐색 영역 분할 수신기, 산학협력단, 2019.03.~2020.02.이경천
◾ UDN 기술의 성능 평가 플랫폼 개발, 정보통신기획평가원(구'정보통신기술진흥센터), 2019.03.~2019.11.이경천
◾ 차세대 이동통신 시스템을 위한 비직교다중접속 방식 연구, 주식회사 위즈노바, 2017.02.~2018.02.이경천
◾ 5G 이동통신을 위한 고용량/저복잡도 하이브리드 빔형성 기술 연구, 한국연구재단, 2016.11.~2019.10.이경천
◾ 대단위 안테나 협력 공간 변조를 이용한 차세대 고속/에너지 효율 무선 통신 시스템, 한국연구재단, 2016.04.~2018.03.이경천
◾ 재난안전통신망에 대한 전파교란 성능 분석 연구, ETRI부설국가보안기술연구소, 2016.04.~2016.11.이경천
◾ 채널 정보 오차에 강인한 일반화 공간변조 수신기, 산학협력단, 2015.11.~2016.10.이경천
◾ 일반화 공간 변조를 위한 저복잡도 구복호 수신기, 산학협력단, 2015.10.~2016.09.이경천
◾ LTE 물리계층 전파교란에 의한 통신성능 분석 연구, ETRI부설국가보안기술연구소, 2015.04.~2015.11.이경천
◾ ICT기반 차상제어시스템의 통신 용량 증대 연구, 한국철도기술연구원, 2015.03.~2015.10.이경천
◾ Massive MIMO의 자원/성능 최적화 및 제어 채널 커버리지 확대 기술 연구, 한국연구재단, 2014.05.~2017.04.이경천
◾ ICT기반 차상제어시스템의 통신안전성 확보, 한국철도기술연구원, 2014.03.~2014.10.이경천
◾ 간섭신호 존재환경에서 ICT기반 차상제어시스템의 안전성 확보 기술 연구, 한국철도기술연구원, 2013.04.~2013.10.이경천
◾ 이동통신 시스템에서 셀 경계 영역의 성능 향상 기법 연구, 한국연구재단, 2012.05.~2013.04.이경천
Awarded
◾ Active and passive beamforming based on RWMMSE and Gradient Projection for IRS-aided MU-MISO Systems, Best Paper Award, International Conference on ICT Convergence, 2023이경천
◾ Low-Complexity Hybrid Precoding and Combining Scheme Based on Array Response Vectors, Best Paper Award, IEEE Wireless Communications and Networking Conference, 2020이경천
Miscellaneous
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