의공학-바이오소재(전기정보공학 프로그램)
이름
이경천
전공
무선 통신
TEL
02-970-6405
E-mail
kclee@seoultech.ac.kr
연구실
미래관 518호
교수소개 돌아가기
학력
Education:
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
주요 경력
Awards:
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)

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
연구 분야
Wireless communication
Applied machine learning
Massive MIMO
Cooperative communication
주요논문 및 저서
[23] T. Q. Tran, S. Sugiura, and K. Lee*, "Ordering- and partitioning-aided sphere decoding for generalized spatial modulation," IEEE Transactions on Vehicular Technology, vol. 67, no. 10, pp. 10087-10091, Oct. 2018.
[22] N. T. Nguyen and K. Lee*, "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, Oct., 2018.
[21] T. V. H. Nguyen, S. Sugiura, and K. Lee*, "Low-complexity sphere search-based adaptive spatial modulation," IEEE Transactions on Vehicular Technology, vol. 67, no. 8, pp. 7836-7840, Aug., 2018.
[20] T. V. Le and K. Lee*, "Adaptive perturbation-aided opportunistic beamforming," IEEE Communications Letters. vol. 22, no. 8, pp. 1660-1663, Aug., 2018.
[19] R. Nakai, M. Oiwa, K. Lee, and S. Sugiura*, “Generalized buffer-state-based relay selection with collaborative beamforming,” IEEE Transactions on Vehicular Technology, vol. 67, no. 2, pp. 1245-1257, Feb., 2018.
[18] N. T. Nguyen and K. Lee*, "Cell coverage extension with orthogonal random precoding for massive MIMO systems," IEEE Access, vol.5, Apr. 2017.
[17] K. Pham and K. Lee*, “Non-cooperative interference alignment for multicell multiuser MIMO uplink channels,” IET Communications, vol. 11, no. 5, pp. 648-654, Apr. 2017.
[16] K. Pham and K. Lee*, “Interference alignment for multicell multiuser uplink channels,” IEEE Transactions on Vehicular Technology, vol. 65, no. 7, pp. 5146-5159, July, 2016.
[15] K. S. Gyamfi, J.-H. Baek and K. Lee*, "Lattice reduction aided tabu search with a channel-dependent stopping criterion for MIMO systems," Electronics Letters, vol. 51, no. 24, pp. 2062-2064, Nov. 2015.
[14] D.-L. Le, J.-H. Baek, and K. Lee*, “Selective cooperative decoding based on a hard-decision-aided log-likelihood ratio approximation,” IET Communications, vol. 9, no. 24, pp. 1754-1762, Sep. 2015.
[13] K. Pham and K. Lee*, “Low-complexity SIC detection algorithms for multiple-input multiple-output systems,” IEEE Transactions on Signal Processing, vol. 63, no. 17, pp. 425-4633, Sep. 2015.
[12] K. Lee, "Doubly ordered sphere decoding for spatial modulation," IEEE Communications Letters, vol. 19, no.5, pp. 795-798, May. 2015.
[11] K. Lee, "Novel decoding algorithms for decode-and-forward cooperative beamforming systems," IET Communications, vol. 8, no. 17, pp. 3012-3018, Nov. 2014.
[10] K. Lee, “Uplink interference alignment for two-cell MIMO interference channels,” IEEE Transactions on Vehicular Technology, vol. 62, no. 4, pp. 1861-1865, May 2013.
[9] K. Lee and L. Hanzo, “Resource-efficient wireless relaying protocols,” IEEE Wireless Communications Magazine, vol 17, no. 2, pp. 66-76, Apr., 2010.
[8] K. Lee and L. Hanzo, “Optimal decoding for hard-decision forwarding aided cooperative spatial multiplexing systems,” IEEE Transactions on Wireless Communications, vol. 8, no. 9, Sep. 2009. (The conference version won the Best Paper Award at IEEE ICC, 2009.)
[7] S.-H. Won, K. Lee, and L. Hanzo, “Initial code acquisition in the cooperative non-coherent MIMO DS-CDMA downlink,” IEEE Transactions on Vehicular Technology, vol. 58, no. 3, pp. 1387-1395, Mar. 2009.
[6] K. Lee and L. Hanzo, “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, Jan. 2009.
[5] K. Lee and J. Chun, “ML symbol detection based on the shortest path algorithm for MIMO systems,” IEEE Transactions on Signal Processing, vol. 55, no. 11, pp. 5477-5484, Nov. 2007.
[4] K. Lee, J. Chun, and L. Hanzo, “Optimal lattice-reduction aided successive interference cancellation for MIMO systems,” IEEE Transactions on Wireless Communications, vol. 6, no. 7, pp. 2438-2443, July 2007.
[3] I. Kim, K. Lee, and J. Chun, “A MIMO antenna structure that combines transmit beamforming and spatial multiplexing,” IEEE Transactions on Wireless Communications, vol. 6, no. 3, pp. 775-779, Mar. 2007.
[2] K. Lee and J. Chun, “Symbol detection in V-BLAST architectures under channel estimation errors,” IEEE Transactions on Wireless Communications, vol. 6, no. 2, pp. 593-597, Feb. 2007.
[1] K. Lee and J. Chun, “Frequency offset estimation for MIMO and OFDM systems using orthogonal training sequences,” IEEE Transactions on Vehicular Technology, vol. 56, no. 1, pp. 146-156, Jan. 2007.
저널 논문
◾ 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
◾ Adaptive Perturbation-Aided Opportunistic Hybrid Beamforming for mmWave Systems, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.69 No.6 pp.6554~6562, 2020이경천
◾ Deep learning-aided tabu search detection for large MIMO systems, IEEE Transactions on Wireless Communications, 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
◾ Learning-Aided Deep Path Prediction for Sphere Decoding in Large MIMO Systems, IEEE ACCESS, vol.8 pp.70870~70877, 2020이경천
◾ Low-Complexity Incremental Search-Aided Hybrid Precoding and Combining for Massive MIMO Systems, IEEE ACCESS, vol.8 pp.66867~66877, 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
◾ 다중입출력 시스템에서 적응형 섭동을 이용한 기회적 프리코딩, 한국정보통신학회논문지, vol.23 No.12 pp.1638~1643, 2019이경천
◾ 일반화 공간변조 시스템에서 채널 정보 오차를 고려한 탐색 영역 분할 수신기, 한국정보통신학회논문지, vol.23 No.12 pp.1631~1637, 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
◾ 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
◾ Ordering-and Partitioning-Aided Sphere Decoding for Generalized Spatial Modulation, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.67 No.10 pp.10087~10091, 2018이경천
◾ Low-Complexity Sphere Search-Based Adaptive Spatial Modulation, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol.67 No.8 pp.7836~7840, 2018이경천
◾ Adaptive Perturbation-Aided Opportunistic Beamforming, IEEE COMMUNICATIONS LETTERS, vol.22 No.8 pp.1660~1663, 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
◾ 일반화 공간변조를 위한 저복잡도 강인 최대 우도 신호 검파, 한국정보통신학회논문지, vol.21 No.3 pp.516~522, 2017이경천
◾ 일반화 공간 변조 시스템에서 송신/수신 순서화를 적용한 효율적 구복호 수신기, 한국정보통신학회논문지, vol.21 No.3 pp.523~529, 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
◾ 채널 정보 오차에 강인한 일반화 공간변조 수신기, 한국정보통신학회논문지, vol.20 No.1 pp.45~51, 2016이경천
◾ 일반화 공간 변조를 위한 저복잡도 구복호 수신기, 한국정보통신학회논문지, vol.20 No.1 pp.30~36, 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
학술대회
◾ 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
◾ 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
◾ 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
◾ 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
특허
◾ 반복적인 타부 서치를 이용한 다중 안테나 통신시스템의 연판정 디코딩 장치 및 방법(다중입출력시스템에서 연판정 복호를 위한 반복 타부 탐색), 특허 등록, 대한민국, 10-1832901, 2018이경천
◾ 공간변조를 위한 이중 순서 스피어 디코딩 장치 및 방법, 특허 등록, 대한민국, 10-1771503, 2017이경천
◾ 자유도를 향상시키는 간접 정렬 장치 및 방법, 특허 등록, 대한민국, 10-1698352, 2017이경천
◾ 직접 신호가 고려된 협력적 공간 멀티플렉싱 시스템의 중계 노드 선택 장치 및 방법, 특허 등록, 대한민국, 10-1695776, 2017이경천
◾ 포워딩 에러가 고려된 협력적 공간 멀티플렉싱 시스템의 중계 노드 선택 장치 및 방법, 특허 등록, 대한민국, 10-1626549, 2016이경천
◾ 비협력적 선형 간섭 정렬 장치 및 방법, 특허 등록, 대한민국, 10-1585999, 2016이경천
◾ 협력적 빔포밍 시스템을 위한 최적 및 준최적 에러 디코딩 장치 및 방법, 특허 등록, 대한민국, 10-1559344, 2015이경천
◾ 효율성이 높은 최적 및 준최적 계승적 간접 취소 장치 및 방법, 특허 등록, 대한민국, 10-1553242, 2015이경천
◾ 이동통신 시스템에서의 상향 링크?, 특허 등록, 대한민국, 10-1417661, 2014이경천
연구프로젝트
◾ DC 마이크로그리드 기반 IoE 핵심기술 개발, 산학협력단, 2019.06.~2022.02.이경천
◾ 전기정보기술연구소, 한국연구재단, 2019.06.~2022.02.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
◾ 재난안전통신망에 대한 전파교란 성능 분석 연구, ETRI부설국가보안기술연구소, 2016.04.~2016.11.이경천
◾ 대단위 안테나 협력 공간 변조를 이용한 차세대 고속/에너지 효율 무선 통신 시스템, 한국연구재단, 2016.04.~2018.03.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
수상
◾ Low-Complexity Hybrid Precoding and Combining Scheme Based on Array Response Vectors, Best Paper Award, IEEE Wireless Communications and Networking Conference, 2020이경천
기타(학회활동 등)
- Webpage: http://csp.seoultech.ac.kr
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공과대학공과대학기계시스템디자인공학과기계·자동차공학과기계공학 프로그램자동차공학 프로그램안전공학과신소재공학과건설시스템공학과건축학부-건축공학전공건축학부-건축학전공건축기계설비공학과정보통신대학정보통신대학전기정보공학과전자IT미디어공학과전자공학 프로그램IT미디어공학프로그램컴퓨터공학과에너지바이오대학에너지바이오대학화공생명공학과환경공학과식품공학과정밀화학과스포츠과학과안경광학과조형대학조형대학디자인학과산업디자인전공시각디자인전공도예학과금속공예디자인학과조형예술학과인문사회대학인문사회대학행정학과영어영문학과문예창작학과기초교육학부어학교육기술경영융합대학기술경영융합대학산업공학과(산업정보시스템전공)산업공학과(ITM전공)MSDE학과경영학과(경영학전공)경영학과(글로벌테크노경영전공)데이터사이언스학과미래융합대학미래융합대학융합공학부(융합기계공학전공)융합공학부(건설환경융합전공)융합사회학부(헬스피트니스전공)융합사회학부(문화예술전공)융합사회학부(영어전공)융합사회학부(벤처경영전공)창의융합대학창의융합대학인공지능응용학과지능형반도체공학과미래에너지융합학과대학원일반대학원산업대학원주택도시대학원철도전문대학원IT 정책전문대학원나노IT디자인융합대학원융합과학대학원