Publications & Talks

Google citations

Selected Publications

Submitted

1. M. Elsharief, S. Sabuj, S. Kwon, and H.-S. Jo, "Resource Allocation in Mode 2 of 5G NR-V2X: A Cooperative and Reliable MAC Protocol," IEEE Transactions on Intelligent Transportation Systems, Mar 2023.

2. W. Yang, T. Nam, B. Jeon, C. Mun, N. Jeong, H.-S. Jo, "Deep Reinforcement Learning-based Cellular-V2X QoS Adaptive Distributed Congestion Control," IEEE Transactions on Intelligent Vehicles, Feb 2023.

Published

1. S. Sabuj, A. Shakil, H.-S. Jo, "CUAV-Enabled mMTC and URLLC Services: Review of Energy Efficiency and Latency Performance," IEEE Transactions on Green Communications and Networking, May 2023.

2. Y. Cho, W. Yang, D. Oh, H.-S. Jo, "Multi-Agent Deep Reinforcement Learning for Interference-Aware Channel Allocation in Non-Terrestrial Networks," IEEE Communications letters, Jan 2022.

3. W. Yang, H.-S. Jo, "Deep-Reinforcement-Learning-Based Range-Adaptive Distributed Power Control for Cellular-V2X," ICT Express (In Press), July 2022.

4. S. Sabuj, A. Rahul, Y, Cho, H.-S. Jo, "Cognitive Unmanned Aerial Vehicle-aided Human  Bond Communication  System: Modelling and Performance Analysis," IEEE Access, vol.10, Sep 2022.

5. M. Elsharief, A. Emran, H. Hassan, S. Sabuj, H.-S. Jo, "SLES: Scheduling-based Low Energy Synchronization for Industrial Internet of Things," IEEE Sensors Journal, vol.22, July 2022.

6. S. Sabuj, D. K. Asiedu, K.-J. Lee, H.-S. Jo, "Delay Optimization in Mobile Edge Computing: Cognitive UAV-Assisted eMBB and mMTC Services," IEEE Transactions on Cognitive Communications and Networking, Feb 2022. 

7. S. Jo, W. Yang, H. G. Choi, E. Noh, H.-S. Jo, J. Park, "Deep Q-Learning-Based Transmission Power Control of High Altitude Platform Station with Spectrum Sharing," Sensors, Feb 2022.

8. S. Park, H.-S. Jo, C. Mun, and J.-G. Yook, "Dynamic Small-Cell Clustering Using Affinity Propagation Algorithm in Asynchronous 5G NR OFDM Systems," IEEE Communications Letters, Aug 2021. 

9. J.-Y. Choi, H.-S. Jo, C. Mun, and J.-G. Yook, "Deep Reinforcement Learning-Based Distributed Congestion Control in Cellular V2X Networks," IEEE Wireless Communications Letters, Aug 2021. 

10. R. K. Ahiadormey, P. Anokye, H.-S. Jo, C. Song, and K.-J. Lee, "Secrecy Outage Analysis in NOMA Power Line Communications," IEEE Communications Letters, Feb 2021.

11. S. Park, H.-S. Jo, C. Mun, and J.-G. Yook, "RRH Clustering using Affinity Propagation Algorithm with Adaptive Thresholding and Greedy Merging in Cloud Radio Access Network," Sensors, 21(2), Jan 2021. 

12. S. Sabuj, A. Ahmed, Y. Cho, K.-J. Lee, H.-S. Jo, "Cognitive UAV-Aided URLLC and mMTC Services: Analysing Energy Efficiency and Latency," IEEE Access, Dec 2020.

13. H. Kim, Y. Cho, and H.-S. Jo, "Adjacent Channel Compatibility Evaluation and Interference Mitigation Technique between Earth Station in Motion and IMT-2020," IEEE Access, vol.8, Nov 2020.

14. Y. Cho, H. Kim, M. Nekovee, H.-S. Jo, "Coexistence of 5G with Satellite Services in the Millimeter-Wave Band," IEEE Access, vol.8, Sep 2020.

15. P. Anokye, R. K. Ahiadormey, H.-S. Jo, C. Song, and K.-J. Lee, "Low-Resolution ADC Quantized Full-Duplex Massive MIMO-Enabled Wireless Backhaul in Heterogeneous Networks Over Rician Channels," IEEE Trans. on Wireless Communications, vol. 19, no. 8, Aug 2020.

16. H.-S. Jo, C. Park, E. Lee, H. K. Choi, J. Park , "Path Loss Prediction based on Machine Learning Techniques: Principal Component Analysis, Artificial Neural Network, and Gaussian Process," Sensors, (20)7, 1927, March 2020. 

17. R. K. Ahiadormey, P. Anokye, H.-S. Jo, K.-J. Lee, "Performance Analysis of Two-Way Relaying in Cooperative Power Line Communications," IEEE Access, vol.7, July 2019.

18. W. A. Hassan, H.-S. Jo, S. Ikki, and M. Nekovee, "Spectrum-sharing Method for Co-existence Between 5G OFDM-Based System and Fixed Service," IEEE Access, vol.7, June 2019.

19. J. Kim, H.-S. Jo, K.-J. Lee, D.-H. Lee, D.-H. Choi, S. Kim, "A Low-Complexity I/Q Imbalance Calibration Method for Quadrature Modulator," IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 20, no. 4, Apr. 2019. 

20. J. Park, E. Lee, S.-H. Park, S. S. Raymond, S. Pyo, H.-S. Jo, "Modeling and Analysis on Radio Interference of OFDM Waveforms for Coexistence Study," IEEE Access, vol. 7, Jan. 2019. 

21. W. A. Hassan, H.-S. Jo, T. A. Rahman, "The Feasibility of Coexistence Between 5G and Existing Services in the IMT-2020 Candidate Bands in Malaysia," in IEEE Access , vol.5, pp.14867-14888, Apr. 2017.

22. J.-K. Hong, H.-S. Jo, C. Mun, and J.-G. Yook, "Opportunistic Polarization-matching for Multiuser Polarized MISO Downlink," IEEE Communications Letters,  vol.21, no.4, pp.909-912, Apr. 2017.

23. R. Sabogu-Sumah, A. Alidu, and  H.-S. Jo, "Coexistence of Power-Controlled Cellular Networks With Rotating Radar," IEEE Journal on Selected Areas in Communications, vol. 34, no. 10, Oct. 2016.

24. T.-L. Song, Y.-R. Jeong, H.-S. Jo, and J.-G. Yook, "Noise-Jamming Effect as a Countermeasure Against TEMPEST during High-Speed Signaling," IEEE Trans. on Electromagnetics Compatibility vol. 57, no. 6, pp. 1491-1500, Dec. 2015.

25. H. Joung, H.-S. Jo, C. Mun, and J.-G. Yook, "Capacity Loss Due to Polarization-Mismatch and Space-Correlation on MISO Channel," IEEE Trans. on Wireless Communications, vol. 13, no. 4, pp. 2124-2136, Apr. 2014.

26. C. Mun and H.-S. Jo, "Throughput Analysis of Transmit-Nulling SDMA with Limited Feedback," EURASIP Journal on Wireless Communications and Networking 2013:270, Nov. 2013.

27. H. Joung, H.-S. Jo, C. Mun, and J.-G. Yook,"Generalized gradient scheduling for vector network utility maximization," IEEE Communications Letters, vol. 17, no. 1, pp.111- 114, Jan. 2013.

28. H.-S. Jo, P. Xia, and J. G. Andrews, “Open, Closed, and Shared Access Femtocells in the Downlink,” EURASIP Journal on Wireless Communications and Networking 2012:363, Dec. 2012.

29. H.-S. Jo, Y. J. Sang, P. Xia, and J. G. Andrews, “Heterogeneous cellular networks with flexible cell association: a comprehensive downlink SINR analysis,” IEEE Trans. on Wireless Communications,  vol.11, no.10, pp.3484-3495, Oct. 2012.

30. A. Ghosh, J. G. Andrews, N. Mangalvedhe, R. Ratasuk, B. Mondal, M. Cudak, T. A. Thomas, E. Visotsky, P. Xia, H.-S. Jo, H. S. Dhillon, and T. D. Novlan, "Heterogeneous Cellular Networks: From Theory to Practice,"  IEEE Communications Magazine, vol. 50, no. 6, pp. 54-64, June 2012.

31. P. Xia, H.-S. Jo, and J. G. Andrews, “Fundamentals of inter-cell overhead signaling in heterogeneous cellular networks,” IEEE J. Sel. Topics in Signal Processing, vol. 6, no. 3, pp. 257-269, June 2012.

32. H.-S. Jo, “Codebook-based precoding for SDMA-OFDMA with spectrum sharing,” ETRI Journal, vol. 33, no. 6, pp. 831-840, Nov. 2011.

33. H.-S. Jo, C. Mun, J. Moon, and J.-G. Yook, "Self-optimized Coverage Coordination in Femtocell Networks," IEEE Trans. on Wireless Communications, vol.9, no.10, pp.2977-2982, Oct. 2010.

34. H.-S. Jo and J.-G. Yook, “Path Loss Characteristics for IMT-Advanced Systems in Residential and Street Environments,” IEEE Antennas and Wireless Propagation Letters, vol.9, pp.867-871, Sep. 2010

35. D.-Y. Kim, H.-S. Jo, H.-G. Yoon, B.-J. Jang, C. Mun, and J.-G. Yook, “Reverse-link Interrogation Range of a UHF MIMO-RFID System in Nakagami-m Fading Channels,” IEEE Trans. on Industrial Electronics, Vol. 57, No. 4, Apr. 2010.

36. H.-S. Jo, C. Mun, J. Moon, and J.-G. Yook, "Interference Mitigation Using Uplink Power Control for Two-Tier Femtocell Networks," IEEE Trans. on Wireless Communications, Vol. 8, No. 10, pp. 4906-4910, Oct. 2009.

37. W.-G. Chung, H.-S. Jo, H.-G. Yoon, J. Lim, J.-G. Yook, and H.-K. Park, "An Advanced MCL Method for a Sharing Analysis of IMT-Advanced Systems," IET Electronics Letters, Vol. 42, Issue21, pp. 1234-1235, Oct. 2006.

Korean Journals

1. 조연기, 김현기, 조한신, "밀리미터파 대역에서 5G 이동통신과 고정위성서비스간 공존 연구," 한국전자파학회논문지, vol. 30, no.9, Sep 2019.

2. 김현기, 조연기, 조한신, "항공 이동형 지구국과 5세대 이동통신 간의 양립성 평가를 위한 간섭분석," 한국전자파학회논문지, vol. 30, no.9, Sep 2019.

3. 조한신, "Filtered OFDM 대역 외 방사 모델링 및 해석 (Modeling and Analysis of Out-of-Band Emission of Filtered OFDM)," 한국통신학회논문지, vol. 44, no. 3, Mar 2019.

4. 조한신, "IMT-2020 5G 서비스용 후보대역 결정을 위한 공유연구 동향," 전자공학회지, vol. 44, no. 7, July 2017.

5. 홍준기, 조한신, 문철, 육종관, "주파수 분할 방식의 거대 다중 안테나 시스템을 위한 빔형성 기반의 채널상태정보 기준신호 전송기술 (Beamforming Based CSI Reference Signal Transmission for FDD Massive MIMO Systems)," 한국통신학회논문지, vol. 41, no. 5, May 2016.

6. 이경재, 조한신, "이기종네트워크를구성하는무선접속기술간주파수이격분석(On Frequency Separation among Radio Access Technologies in Heterogeneous Networks)," 인터넷정보학회논문지, vol. 16, no. 6, Dec 2015.

7. 조한신, "LTE 셀룰라 시스템과 무선랜의 양립성 분석(Compatibility between LTE Cellular Systems and WLAN)," 한국전자파학회 논문지, vol. 26, no. 2, Feb 2015.

8. 이경재, 조한신, "이기종 셀룰러 네트워크에서 간섭 제거와 로드 밸런싱(Interference Cancellation and Load Balancing in Heterogeneous Cellular Networks)," 전자공학회 논문지, vol. 51, no. 10, Oct 2014.

9. 문철, 조한신, "폐쇄형 접속 방식의 소형셀 네트워크를 위한 동적 채널할당 알고리즘(Dynamic Channel Allocation in Closed-Access Small Cell)," 한국통신학회 논문지, vol. 39A, no. 1, Jan 2014.

10. 조한신, 문철, "셀 간 협동 CSM에서 상향 링크 용량 개선을 위한 자원 할당 알고리즘(Radio Resource Management Algorithm for Uplink Coordinated Cooperative Spatial Multiplexing),"  한국전자파학회 논문지, vol. 21, no. 11, Nov 2010.

11. 조한신, 윤현구, 육종관, "TDD-OFDMA 기반의 차세대 셀룰라 시스템과 육상 고정 시스템 간의 주파수 공유 분석(Frequency Sharing of Cellular TDD-OFDMA Systems beyond 3G with Terrestrial Fixed Systems)," 한국통신학회 논문지, vol. 32A, no. 1A, Jan 2007.

12. 조한신, 윤현구, 육종관, "TDD-OFDM/OFDMA 기반의 차세대 이동 통신 시스템과 고정 위성서비스 지구국 간의 주파수 공유 분석(Frequency Sharing of TDD-OFDM/OFDMA Based Systems beyond 3G with Fixed Satellite Service Earth Station)," 한국전자파학회 논문지, vol. 17, no. 5, May 2006.

13. 정우기, 윤현구, 조한신, 임재우, 육종관, 박한규, "차세대 이동통신 시스템의 주파수 공유분석을 위한개선된 MCL 방법(An Advanced MCL Method for a Sharing Analysis of Mobile Communication Systems beyond 3G)," 한국전자파학회 논문지, vol.17, no.3, Mar 2006.

14. 조한신, 김도윤, 문철, 육종관, "터널 환경에서 위성 DMB 시스템 E의 BER 성능(BER Performance for Satellite DMB System E in Tunnel)," 한국통신학회 논문지, vol. 30, no. 5A, May 2005.

15. 최명선, 김도윤, 조한신, 문철, 육종관, 박한규, "지하철 터널 환경에서 2.65 GHz 대역신호의 전파전파 특성(Radio Propagation Characteristics in Subway Tunnel at 2.65 GHz)," 한국전자파학회 논문지, vol.16, no.5, May 2005.

International Conference Papers 

1. J. Kim, H.-S. Jo, K.-J. Lee, D.-H. Lee, D.-H. Choi, and S. Kim, "A low-complexity I/Q imbalance calibration method for quadrature modulator", IEEE International Symposium on Circuits and Systems (ISCAS), Virtual, Oct. 2020

2. Y. Cho, H. Kim, D. K. Tettey, K.-J. Lee and H.-S. Jo, "Modeling Method for Interference Analysis between IMT-2020 and Satellite in the mmWave Band," 2019 IEEE Globecom Workshops (GC Wkshps), Waikoloa, HI, USA, 2019.

3. H. Kim, Y. Cho, D. K. Tettey and H.-S. Jo, "Adjacent Channel Compatibility between OFDM-Based Earth Station in Motion and 5G," 2019 IEEE Globecom Workshops (GC Wkshps), Waikoloa, HI, USA, 2019.

4. S. Park, H.-S. Jo, C. Mun, and J.-G. Yook, "Radio Remote Head Clustering with Affinity Propagation Algorithm in C-RAN," IEEE Vehicular Technology Conference (VTC 2019-fall), Sep. 2019.  

5. S. Lee, H.-S. Jo, C. Mun, and J.-G. Yook, "Noise Suppression Chanel Estimation Method Using Deep Learning in IEEE 802.11 p Standard," IEEE Vehicular Technology Conference (VTC 2019-fall), Sep. 2019. 

6. H.-K. Kim, Y. Cho, E. E. Ahiagbe, and  H.-S. Jo, "Adjacent Channel Interference from Maritime Earth Station in Motion to 5G Mobile Service," Proc. of International Conference on ICT Convergence 2018 (ICTC 2018), Oct. 2018

7.  Y. Cho, H.-K. Kim, E. E. Ahiagbe, and  H.-S. Jo, "Spectral Coexistence of IMT-2020 with Fixed-Satellite Service in the 27-27.5 GHz Band," Proc. of International Conference on ICT Convergence 2018 (ICTC 2018), Oct. 2018

8. E. E. Ahiagbe, D. K. Tetty, and  H.-S. Jo, "Methods to Evaluate and Mitigate the Interference from Maritime ESIM to Other Services in 27.5-29.5 GHz Band," Proc. of International Conference on ICT Convergence 2018 (ICTC 2018), Oct. 2018

9. S. Lee, H.-S. Jo, C. Mun, and J.-G. Yook, "Implementation of Polarization Matching Technique for Polarization Division Multiple Access," Proc. of the 85th IEEE Vehicular Technology Conference (VTC 2017-spring), Jun. 2017.

10. R. Sabogu-Sumah, A. Abubakari, H.-S. Jo, "Spatio-Temporal Opportunistic Spectrum Sharing Between Rotating Radar and Cellular Networks," Proc. of the 85th IEEE Vehicular Technology Conference (VTC 2017-spring), Jun. 2017.

11. A. Alidu, R. Saboguu-Sumah, and  H.-S. Jo, "Full Dimension MIMO Antenna Configuration for Optimal Performance," Proc. of International Conference on ICT Convergence 2015 (ICTC 2015), Oct. 2015.

12. R. Sabogu-Sumah, A. Alidu, H.-J. Hong, H. K. Son,  and  H.-S. Jo, "Compatibility between LTE and Airport Surveillance Radar in 2700-2900 MHz radar bands," Proc. of International Conference on ICT Convergence 2015 (ICTC 2015), Oct. 2015.

13. J.-K. Hong, H. Joung, H.-S. Jo, C. Mun, and J.-G. Yook, "Dual-Polarized Multiple Antenna Aided Space-Polarization Division Multiple Access System," Proc. of The 6th International Conference on Internet (ICONI 2014), Dec. 2014.

14. H.-S. Jo, A. Alidu, and C. Mun, "Space-Frequency Notching for Multicarrier Cognitive Radio with Multiple Antennas," Proc. International Symposium on Information Technology Convergence (ISITC 2014), Oct. 2014.

15. H.-S. Jo, “Asymptotic Throughput of Spectrum Sharing SDMA with Finite Rate Feedback,” in Proc. International Conference on Electronics, Information and Communication 2013, Jan. 2013.

16. H.-S. Jo, Y. J. Sang, P. Xia, and J. G. Andrews, “Outage probability for heterogeneous cellular networks with biased cell association,” in Proc. IEEE Global Communications Conference 2011, Dec. 2011.

17. H.-S. Jo, P. Xia, and J. G. Andrews, “Downlink Femtocells Networks: Open or Closed?,” in Proc. IEEE International Conference on Communications, June 2011.

18. H.-S. Jo, C. Mun, J. Moon, and J.-G. Yook, "Interference Mitigation Using Uplink Power Control for Two-Tier Femtocell Networks," in Proc. IEEE Military Communications Conference, Nov. 2008.

19. H.-S. Jo, H.-G. Yoon, J. Lim, and J.-G. Yook, "Coexistence Method to Mitigate Interference from IMT-Advanced to Fixed Satellite Service," in Proc. European Conference on Wireless Technology, Oct. 2007.

20. H.-S. Jo, H.-G. Yoon, J. Lim, and J.-G. Yook, "An Advanced MCL Method for Assessing Interference Potential of OFDM-Based Systems beyond 3G with Dynamic Power Allocation," in Proc. European Conference on Wireless Technology, Sep. 2006.

21. H.-S. Jo, D.-Y. Kim, and J.-G. Yook, "Path-Loss Characteristics at 3.4, 5.3, and 6.4 GHz in an Outdoor Microcell Environment," in Proc. International Symposium on Antennas and Propagation, Aug.2005.

22. D.-Y. Kim, H.-S. Jo, and J.-G. Yook, "Radio Propagation Characteristics in Subway Tunnel at 2.65 GHz," in Proc. International Symposium on Antennas and Propagation, Aug. 2005.

Korean Conference Papers 

1. 남태식, 황성민, 최은희, 이선영, 조한신, "기계학습을 이용한 경로손실 예측모델," 2019 전자파학회 하계종합학술대회 논문집, 2019년 8월.

2. 김현기, 조연기, 조한신, "5세대 이동통신과의 양립성을 위한 이동형 지구국의 OFDM 파형 설계," 2019 전자파학회 하계종합학술대회 논문집, 2019년 8월.

3. 조연기, 김현기, 조한신, "IMT-2020과 EESS간 인접채널 간섭분석을 통한 공존 가능성 연구," 2019 전자파학회 하계종합학술대회 논문집, 2019년 8월. (학술대회 우수논문상 수상)

4. 남태식, 이상헌, 조한신, "딥러닝을 이용한 무선 위치 측위," 2018 전자파학회 하계종합학술대회 논문집, 2018년 8월.

5. 김현기, 조연기, 조한신, "해상 이동형 위성 지구국과 차세대 5G 이동통신 간의 인접채널 간섭 분석," 2018 전자파학회 하계종합학술대회 논문집, 2018년 8월.

6. 조연기, 김현기, 조한신, "5G 이동통신과 고정위성서비스간 간섭 분석을 통한 공존 가능성 연구," 2018 전자파학회 하계종합학술대회 논문집, 2018년 8월.

7. 조연기, 김현기, 김주성, 조한신, "5G 이동통신과 고정위성서비스간의 전파간섭분석을 위한 GUI 시뮬레이터," 2017 한국통신학회 추계종합학술대회 논문집, 2017년 11월. (학술대회 학부우수논문 장려상 수상)

8. 김현기, 조연기, 김주성, 조한신, "위성 간 서비스와 준 밀리미터파 5G 이동통신 서비스 간의 간섭분석," 2017 한국통신학회 하계종합학술대회 논문집, 2017년 6월.

9. 조연기, 김현기, 김주성, 조한신, "준 밀리미터파 5세대 이동통신과 고정위성서비스간의 주파수 공유 분석," 2017 한국통신학회 하계종합학술대회 논문집, 2017년 6월.

10. 박세주, 조한신, 문철, 육종관, "클라우드 기지국 환경에서 개인 셀 합성기술 성능 분석," 2016 한국통신학회 하계종합학술대회 논문집, 2016년 6월.

11. 이상헌, 조한신, 문철, 육종관, "편파분할 다중접속을 위한 코드북 설계," 2016 한국통신학회 하계종합학술대회 논문집, 2016년 6월.

12. 홍준기, 조한신, 문철, 육종관, "Massive MIMO 채널 특성을 적용한 통신 시스템 레벨에서의 이중편파 massive MIMO의 성능 분석," 2015 전자파학회 하계종합학술대회 논문집, 2015년 8월.

13. 이상헌, 박세주, 조한신, 문철, 육종관, "USRP를 활용한 polarization division multiple access system," 2015 전자파학회 하계종합학술대회 논문집, 2015년 8월.

14. 박세주, 이상헌, 조한신, 문철, 육종관, "USRP Test-bed를 활용한 PDMA 시스템 구현," 2015 마이크로파 및 전파전파합동 학술대회 논문집, 2015년 4월.

15. 홍준기, 정희진, 조한신, 문철, 육종관, "이중편파 Massive MIMO를 사용한 통신 시스템레벨에서의 SPDMA 성능 분석," 2014 전자파학회 하계종합학술대회 논문집, 2014년 8월.

16. 이상헌, 정희진, 홍준기, 조한신, 문철, 육종관, "주파수 분할 듀플렉스 방식의 Massive MIMO 시스템을 위한채널상태정보 기준신호 전송방법," 2014 전자파학회 하계종합학술대회 논문집, 2014년 8월.

17. 홍준기, 정희진, 조한신, 문철, 육종관, "이중편파 안테나를 사용하는 공간-편파 분할 다중 접속 기술," 2013 전자파학회 하계종합학술대회 논문집, 2013년 8월.

18. 정희진, 홍준기, 조한신, 문철, 육종관, "DFT 행렬에 기반을 둔 편파 다중 안테나 채널 행렬의 특이 벡터 양자화 방법," 2012 한국인터넷정보학회 하계학술발표대회 논문집, 2012년 8월.

Invited Talks 

1. Aug. 7, 2017, “Sharing and Compatibility Studies”, Agency for Defense Development, Korea.

2. Aug. 3, 2017, “Sharing study of IMT systems with the fixed-satellite service (Earth-to-space) in the 27 27.5 GHz frequency band”, Telecommunications Technology Association, Korea.

3. July 31, 2017, “Line of Sight Propagation – part 2”, Agency for Defense Development, Korea.

4. July 27, 2017, “Sharing and compatibility between earth stations in motion operating with geostationary FSS networks and current and planned stations of the MS in the frequency band 27.5-29.5 GHz”, National Radio Research Agency, Korea.

5. July 24, 2017, “Line of Sight Propagation – part 1”, Agency for Defense Development, Korea.

6. July 17 2017, “Terrestrial Mobile Radio Propagation-part2”, Agency for Defense Development, Korea.

7. July 10, 2017, “Terrestrial Mobile Radio Propagation-part1”, Agency for Defense Development, Korea.

8. July 3, 2017, “Propagation in 3 KHz to 30 MHz”, Agency for Defense Development, Korea.

9. June 16, 2017, “Propagation models for sharing and compatibility studies”, Agency for Defense Development, Korea.

10. July 20, 2016, “Modelling and simulation of IMT networks and systems for use in sharing and compatibility studies”, Telecommunications Technology Association, Korea.

11. July 18, 2016, “Methodologies of coexistence study for identification of frequency band for the future development of IMT-2020”, Korea National University of Transportation, Korea