• 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)

• 과학기술정보통신부 자체평가위원회 민간위원 (2024.11-)

• 과학기술정보통신부 무인이동체 기술개발사업 추진위원회 (2022.12-)

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

• 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-present)

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

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

• KICS Webzin (2017-present)

• 한국장학재단 (KOSAF), 교육부 (2017-present) 

• National Institute for International Education (NIIED)

• 국립국제교육원, 교육부 (2016-present)

• 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 ICC (15,19)

• IEEE Globecom (12,13,17)

• IEEE ICCS (10,18)

• IEEE APWCS(15)

• AKC (13)

• KICS (16,17,18,25)

• ICEIC (18)

• AKC 2013

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

• 2019 대한전자공학회 하계학술대회, 운영위원

• 2019 한국통신학회 하계학술대회, 운영위원

• 2020 한국통신학회 하계학술대회, 운영위원

• 2021 JCCI, 운영위원

• 2021 한국통신학회 하계학술대회, 운영위원

• IEEE Vehicular Technology Conference Fall 2025 (Workshop Co-chair)

IEEE ICC (15-21), IEEE Globecom (14-20), IEEE VTC (12S, 13S,13F,14F,15S,16S,17S,17F,18S,20S,21S), IEEE WCNC (13-21), IEEE PIMRC (15,18),  IEEE ICCS (10,12,14,16,18), IEEE APWCS (12-16,18,19), 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)

• Journals

IEEE Trans. Wireless Communications (07,09-15), IEEE Trans. Communications (08,10-15,17), IEEE Trans. Signal Processing (06,07,11-15), IEEE Wireless Communications Magazine (14), IEEE Communications Magazine (14), IEEE Journal on Selected Areas in Communications (14), IEEE Journal of Selected Topics in Signal Processing (13), IEEE Trans. Vehicular Technology (08, 10, 12-18), IEEE Access (16, 17), IEEE Communications Letters (09, 11-15, 17,18), IEEE Wireless Communications Letters (11-15), IEEE Signal Processing Letters (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 (09,12,14,16,17,18), IEEE ICC (05,10,13,15-19), IEEE PIMRC (07,09,12), IEEE VTC (05,06,10-16,18) IEEE WCNC (13-16), IEEE GreenCom (13), IEEE ICCS (10,12,14,16,18), IEEE SECON (14), IEEE ISITA (10), IEEE ICCC (12,14), IEEE SPICES (15), IEEE ISWTA (13,14), ICT (14), EuCNC (15), ISWCS (12,15), APWCS (12-15), APCC (06,09,13,16), ISCIT (07), APSIPA-ASC (12), WPMC (12), CHINACOM (11), ICCCN (11), APWiMob (14), ATC (14), COMNETSAT (14,15),  ComManTel (14), IOV (14,16), ICCVE (12-16), ICCEREC (17), ICEIC (18), ICOIN (17), ICTC (17,18), 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. Space-time line code and its use cases

   • IEEE ICCS 2019 Dec., Chengdu, China

2. Space-time line code for massive antenna systems of 5G

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

3. 5G MIMO Technologies

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

4. Space-time line code for massive antenna systems

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

5. Machine learning-based resource allocation methods for wireless communications

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

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

7. Energy efficient wireless communications 

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

8. 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

9. Small cell networks and other heterogeneous systems 

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

10. Green wireless communications: A power amplifier perspective 

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

11. Impact of power amplifier (PA) and countermeasures for green wireless communications 

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

12. 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