• 과학기술정보통신부 자체평가위원회 민간위원 (2024.11-현재)

• 과학기술정보통신부 무인이동체 기술개발사업 추진위원회 (2022.12-현재)

• CAU 전자전기공학부 운영위원 (2019.03-2024.01, 2024.08-현재)

• 한국연구재단 국책연구본부 전문위원 (2022.09-2024.08)

• 대한전자공학회, 상임이사,  국내논문지 총괄위원장 (2023)

• 대한전자공학회, 상임이사, 사업위원회 위원장 (2022)

• 한국통신학회, 상임이사, 하계학술대회 위원 (2022)

• 대한전자공학회  전문기술연구팀 선정 (2021.08-2022.08)

• CAU 미래융합원 운영위원 (2021.04-2022.2)

• CAU 전자전기공학부 공학인증 Program Director (2019.03-2022.8)

• Institute of Electrical and Electronics Engineers (IEEE), U.S.A. (S'04-M'07-SM'15-present)

• Korea Information and Communications Society (KICS), Korea (2006-present)

• IEEE Technical Committee on Green Communications & Computing (TCGCC) SIG on (Energy Harvesting Communications) (2012-present)

• Korean Federation of Science and Technology (KOFST), Korea (2013-현재)

• Korean Scientist and Engineers Network (KOSEN), Korea (2014-2016)

• The Institute of Electronics and Information Engineers (IEIE), Korea (2017-현재)

• 한국장학재단 (KOSAF), 교육부 (2017-현재 

• National Institute for International Education (NIIED)

• 국립국제교육원, 교육부 (2016-현재)

• KSEA Scholarship (2015-2016)

• Mentorship Program of Creative Korea, Ministry of Science, ICT, and Future Planning (MISP), Korea (2013-2015)

• Korean Scientists and Engineers Association in Singapore (KSEASG), Singapore (2013-2015)

• Singapore-Japan Int. Workshop, Smart Wireless Commun. (Oct. 2014)

• Asia-Korea Conf. Sci. and Tech. (Nov. 2013)

• IEEE Trans. Vehicular Technology (May 2018-2024) 

• IEEE Access Guest Editor: "Recent Advances in Full-Duplex Radio and Networks" (2018)

• MDPI Sensors: Communications Section (Apr. 2020-present)

• APSIPA Transactions on Signal and Information Processing (2014-2019)

• MDPI Electronics, Guest Editor, Special Issue: IoT in 5G (2018-2019)

• IEEE Vehicular Technology Conference Fall 2025, Workshop Co-chair

• IEEE Vehicular Technology Conference Spring 2024, TPC Chair, "Spectrum Management, Green Communications, Services and Security"

• International Conference on Electronics, Information, and Communication (ICEIC) 2018, OC

• AKC 2013, OC

• 대한전자공학회 하계학술대회, 운영위원, 2019

•  한국통신학회 하계학술대회, 운영위원, 2019, 2020, 2021

• JCCI, 학술위원회 위원, 2021, 2022, 2023, 2024, 2025, 2026

IEEE ICC (15-21), IEEE Globecom (14-20), IEEE VTC (12S, 13S, 13F, 14F, 15S, 16S, 17S, 17F, 18S, 20S, 21S, 22S, 22F, 23S, 24S, 27S), IEEE WCNC (13-21), IEEE PIMRC (15,18),  IEEE ICCS (10,12,14,16,18), IEEE APWCS (12-16,18,19, 21), IEEE IWCMC(19), IEEE GreenCom (13), IEEE SECON (14), IEEE ICCC (14), IEEE SPICES (15), IEEE COMNETSAT (14-16), IEEE APWiMob (14), IEEE ISWCS (15,18,19), APSIPA (14,15), ICSigSys (17,18), ATC (13-15), EuCNC (15), ComManTel (14), APMediaCast (15), IOV (14,16), ISWTA (13,14,17), ICCVE (12-16), WATCN (13), APCC (13,16,17,18), ATC (13-15), AKC (13), ICCEREC(18), ICEIC (18), NICS (17,18), ICTC (17,18,20), SigTelCom (18,19), ICCCN (18), ICon EEI (18), ICCS (18), ICOIN (17,18,19), IEEE CCNC(20,21)

• IEEE ICC (15, 19),

• IEEE Globecom (12, 13, 17)

• IEEE VTC-S (23, 24)

• IEEE ICCS (10, 18)

• IEEE APWCS (15)

• IEEE WCNC (26)

• ICUFN (26)

• ICAIIC (26) 

• ITC-CSCC (19, 23)

• ICEIC (18) 

• AKC (13)

• KICS (16, 17, 18, 19, 20, 22, 25, 26)

• IEIE (19)

• JCCI (23)

• Journals

IEEE Trans. Wireless Communications (since 07), IEEE Trans. Communications (since 08), IEEE Trans. Signal Processing (since 06), IEEE Wireless Communications Magazine (since 14), IEEE Communications Magazine (since 14), IEEE Journal on Selected Areas in Communications (since 14), IEEE Journal of Selected Topics in Signal Processing (since 13), IEEE Trans. Vehicular Technology (since 08), IEEE Access (since 16), IEEE Communications Letters (since 09), IEEE Wireless Communications Letters (since 11), IEEE Signal Processing Letters (since 11), EURASIP Journals Wireless Communications and Networking (09-11), Wiley Wireless Communications and Mobile Computing (10, 11, 13, 14), Wiley Trans. Emerging Telecomm. Tech. (14), Springer-Wireless Networks (13), Elsevier-ComNet (12), IEICE (11), KSII Trans.Internet and Information Syst. (14), Journal of Circuits, Systems and Computers (13), Journal of Communications and Networks (09), JCSC (11), Journal of Semiconductor Technology and Science (16),  Telecommunications Review (KOR: 03-05, 07-09)

• Conferences

IEEE GLOBECOM (since 09), IEEE ICC (since 05), IEEE PIMRC (since 07), IEEE VTC (since 05) IEEE WCNC (since 13), IEEE GreenCom (since 13), IEEE ICCS (since 10), IEEE SECON (since 14), IEEE ISITA (since 10), IEEE ICCC (since 12), IEEE SPICES (since 15), IEEE ISWTA (since 13), ICT (14), EuCNC (15), ISWCS (12,15), APWCS (since 12), ICEIC (since 18), ICOIN (since 17), ICTC (since 17), APCC (since 06), ISCIT (07), APSIPA-ASC (12), WPMC (12), CHINACOM (11), ICCCN (11), APWiMob (since 14), ATC (14), COMNETSAT (14,15),  ComManTel (14), IOV (14,16), ICCVE (12-16), ICCEREC (17), NICS (17), WSA (18), ICon EEI (18)

• Wireless Networks: Many Antennas, Multiple Benefits, A*STAR Research, Oct. 2014-Mar. 2015, pp. 89, Jan. 2015 

• Introduction of A*STAR, I2R, Singapore, KICS, WebZin, Sep., 2015 

• Interview: "Future of Mobile Communications," Science Column, Korean Association in Singapore, Jan. 2016, pp. 28-29

• Interview: Dong-bu Foundation, Korea, Sep. 21, 2016

• 당신의 성공을 방해하는 작은 실수 1위는?, KICS, WebZin, Dec. 2017

1. A Low-Complexity Spatial Diversity System for High-Mobility Wireless Communications

   • 전남대학교, 지능화 모빌리티 ICT 초청 세미나, 21 April 2026

2. Space-Time Line Code and Its Use Cases

   • IEEE ICCS 2019 Dec., Chengdu, China

3. Space-Time Line Code for Massive Antenna Systems of 5G

   • 2018차세대 5G 및 ICT 융합 신기술 세미나, aT center, Seoul, 30 Aug. 2018

4. 5G MIMO Technologies

   • KRnet 2018, 인터컨티넨탈 서울 Coex, Seoul, Korea, 25 Jun. 2018

5. Space-Time Line Code for Massive Antenna Systems

   • 한국통신학회 하계학술대회, 부호및정보이론 연구회 워크숍 특별세션, Jeju, Korea, 21 Jun. 2018

6. Machine Learning-Based Resource Allocation Methods for Wireless Communications

   • 한국정보처리학회, 2017년 제3차 단기강좌, Seoul, Korea, 28 Aug. 2017

7. Young Professor Invited Talk Session, 한국통신학회 하계학술대회, Jeju, Korea, 22 Jun. 2017

8. Energy Efficient Wireless Communications 

   • Tutorial, the 14th International Conf. Electronics, Information and Communication (ICEIC'2015), Singapore, 29 Jan. 2015

9. Energy-Efficient, Large-Scale Distributed-Antenna Systems (L-DAS) 

   • Seminar at KAIST, Daejeon, Korea, 2 May 2014

   • Internal meeting with Prof. Moe Win, Singapore, 14 Jan. 2014

   • Internal meeting with Prof. Tan Chee Wei, Singapore, 23 Dec. 2013

   • Invited Talk in Smart Wireless Comm., as Invited Talk, Singapore, 30 Oct. 2014

10. Small Cell Networks and Other Heterogeneous Systems 

    • Workshop at Nanyang Technological University (NTU), Singapore, 1 Feb. 2013

11. Green Wireless Communications: A Power Amplifier Perspective 

    • Seminar at Yeungnam Univ., Korea, 3 Jan. 2013 

12. Impact of Power Amplifier (PA) and Countermeasures for Green Wireless Communications 

    • MnC Workshop, I2R, Singapore, 8 Aug. 2012

13. Multiuser Two-Way Amplify-and-Forward Relay Processing and Power Control Methods for Beamforming Systems 

    • Seminar at KAIST, Daejeon, Korea, 19 Feb. 2009 

    • MnC Workshop, I2R, Singapore, 25 Nov. 2009