첨단ICT융합대학

관심분야

• 6G Non-Terrestrial Networks (NTN) Wireless Communications and Networks

학력

• 1996.08 한양대학교 박사

경력

* 2022.03 - present: Dean
   College of ICT Convergence, Ajou University
* 2019.3 - 2021.8: Department Head
   School of Electrical and Computer Engineering, Ajou University
* 2012.9 - 2016.2 : Department Chair
   Department of Space Electronics and Information Technology
* 2012.9 - present : Department Chair 
   Department of Space Electronics and Information Technology
* 2012. 3 - present : Professor, 
   School of Electrical and Computer Engineering, Ajou University 
* 2003. 3 - 2012.2 : Associate professor, 
   School of Electrical and Computer Engineering, Ajou University 
* 1998.11 - 2003.2 : Member of Technical Staff, 
   Bell Laboratories (Holmdel, NJ), Lucent Technologies
* 1997.7 - 1998. 6 : Post-doctoral fellow, 
   Department of Electrical Engineering, UCLA
* 1996.1 - 1996. 3 : Research Student 
    in CRL (Communication Research Labs), Tokyo, Japan. 
* 1993.3 - 1996. 8 : Ph.D. 
   in computer Science and Engineering, Hanyang University

연구분야

6G Cellular and Wireless Network QoS Provisioning
- QoS mechanism optimization for 6G networks.
- Novel algorithms for resource allocation and traffic management for 6G.
- End-to-end QoS evaluation for next-gen networks (LTE-Advanced, beyond-LTE).
- Small cell deployment analysis and optimization for enhanced QoS.

IEEE 802.11/15/16/20 MAC Protocols
- IEEE 802.11/15(UWB, Zigbee)/16 MAC protocol optimization.
- RFID anti-collision algorithms.
- Multi-hop multimedia MAC protocol.

Mobility Management
- Inter-RAT/inter-cell handover and roaming algorithms.
- QoS and handover performance analysis for 4G systems.
- Service continuity management.
- Multipath optimization.
- Multi-access network selection.
- Small cell and macro/small cell handover optimization.

Network Coding
- Performance analysis considering control overhead.
- Protocol design for network coding application.

Satellite Network
- Distance-based handover optimization for LEO satellite networks.
- AI-based beam resource optimization for satellite efficiency.
- Satellite routing algorithm design and optimization.
- Feeder link switching optimization for robust connectivity.
- Timing advance mechanisms for satellite propagation delays.
- Development of 5G NR PHY for satellite.

Energy-Efficient Network
- Power-saving Access Point.

Security
- Wireless access control, authentication, and traffic analysis.

기타

이원재, 김재현, "Group Contention-based Full-Duplex Unmanned Aerial Vehicle Relay System," 아주대학교 대학원, Jan. 2025. (우수논문상)
한상민, 신원재, 김재현, "저궤도 위성-지상 단말기 간 직접 통신을 위한 도플러 천이 분석 프레임워크," 한국통신학회, Jan. 2024. (해동우수논문 우수상)
T. Y. Kim, J. Lee, J. H. Kim, "Deep Reinforcement Learning-Based Full-Duplex Communication UAV Base Station Trajectory Optimization in Disaster Environments," IEEE VTS APWCS 2023, Dec. 2023. (Seoul Chapter Award)
W. J. Lee, J. Lee, J. H. Kim, "Performance Evaluation of Multi-Attribute Conditional Handover in LEO Satellite Networks," IEEE VTS APWCS 2023, Dec. 2023. (Seoul Chapter Award)
이도현, 김성훈, 이종태, 이원재, 김재현, "저궤도 위성통신에서 딥러닝을 활용한 핸드오버 결정 기법," 한국통신학회, Nov. 2023. (장려상)
김재현, "표창장," 과학기술정보통신부, Nov. 2023.
이상훈, 강정화, 김재현, "실내재난 환경에서 전력 소모량 최소화를 위한 강화학습 UAV 최적 경로 연구," 한국통신학회, Jun. 2023. (학부우수논문상)
박문기, 김도현, 김대훈, 유지나, 김재현, "군집 드론 내의 CSMA 및 TDMA 통신 알고리즘 구현," 한국통신학회, Feb. 2023. (장려상)
조준우, "공로상," 국방과학연구소, Dec. 2022.
S. Han, J. H. Kim, "Adaptive Beam Design for 5G over NTN," IEEE Seoul Secon, Student Paper Contest, Dec. 2022. (Bronze Paper Award)
J. Kang, J. H. Kim, "Optimal UAV movements for Indoor Users in Disaster Environment," IEEE Seoul Section, Student Paper Contest, Dec. 2022. (Bronze Paper Award)
J. Yu, J. H. Kim, "Simulation and Performance Analysis of Mobility Management in LEO Satellite," IEEE Seoul Section, Student Paper Contest, Dec. 2022.(Bronze Paper Award)
김태윤, 김재현, "가변 길이 패킷 환경에서의 순차 기반 Hybrid CSMA/TDMA MAC 프로토콜 설계," 한국통신학회, Nov. 2022. (우수논문상)
천송민, Ahmed Raza Mohsin, 김태윤, 신원재, "LSTM을 활용한 서울시 공영 주차장 수요 예측 모델 설계," 한국통신학회, Nov. 2022. (장려상)

대표논문

• [논문] 김재현*, 김중헌*, 정소이(제1), Intelligent Extra Resource Allocation for Cooperative Awareness Message Broadcasting in Cellular-V2X Network, IEEE Transactions on Network and Service Management, Vol.22, No.2, pp. 1677-1689 (04월, 2025)
• [논문] 김은진(제1), 김재현, 김준수, 이호원*, HiMAQ: Hierarchical multi-agent Q-learning-based throughput and fairness improvement for UAV-Aided IoT networks, JOURNAL OF NETWORK AND COMPUTER APPLICATIONS, pp. 103813-103813 (03월, 2024)
• [논문] 이원재(제1), 김태윤, 김진기, 김재현*, 정소이*, Group Contention-based Full-Duplex Unmanned Aerial Vehicle Relay System, ICT Express, Vol.10, No.1, pp. 65-70 (02월, 2024)
• [논문] 김태윤(제1), 이원재, 김진기, 김재현*, 정소이*, Energy-Efficient Full-Duplex MAC Protocol Design for Air-Terrestrial Communication, JOURNAL OF COMMUNICATIONS AND NETWORKS, pp. 333-343 (06월, 2023)
• [논문] 강정화(제1), 김경록, 김재현*, 이호원*, Lyapunov Optimization-Based Online Positioning in UAV-Assisted Emergency Communications, IEEE Access, pp. 60835-60843 (06월, 2023)

특허 및 기타