Ji Hoon Lee

Jihoon "Brandon" Lee
Multimedia & Mobile Communication Lab.
School of Computer Science and Engineering
Seoul National University

E-mail   : jhlee@mmlab.snu.ac.kr
Web     : http://mmlab.snu.ac.kr/~jhlee
Address: BLDG 301 RM 553, San 56-1, Shilim-dong,
               Gwanak-gu, Seoul National University,
               151-742, Seoul, Korea.
Phone   : +82-2-880-1848
Fax       : +82-2-872-2045

Education

B.S. Degree (double major, magna cum laude) in Industrial Engineering, Computer Science and Engineering from POSTECH, Korea, 2000
Ph.D in Computer Science and Engineering, Seoul National University, Korea, 2006.3 - present

Career

2000.1-2004.3 Technical Leader, Corecess Inc. R&D Center, Korea
- IP/Ethernet switching router development
- IP-based DSLAM development
2004.4-2005.6 Senior Engineer, Portable Internet R&D Center, Posdata, USA
- IEEE 802.16 MAC development
2005.6-2008.3 Senior Engineer, Flyvo Research Center, POSDATA, Korea
- Mobile WiMAX/WiBro base station development
2007.1-2008.12, Member of standardization experts group, TTA (Telecommunications Technology Association), Korea
2007.1-2009.12, Official secretary, 16ng Working Group, IETF (Internet Engineering Task Force)
2010.8-present, Visiting research at Juni
- OFDMA-based femtocells
- Autonomous femto-cellular network optimization

Research Areas

Multimedia Multicast Services in Broadband Wireless Networks
- Multicast and broadcast services over IEEE 802.16 (WiMAX) networks
- Multicast and broadcast services over LTE networks
- Multicast in IEEE 802.11 wireless mesh networks
- Multicast group management in wireless networks
Autonomous Optimization in Femto Cellular Networks
- Self-configuartion and self-optimization for OFDMA femto cells

Publications

International Journal
- Ji Hoon Lee, Sangheon Pack, Taekyoung Kwon, and Yanghee Choi, "Reducing Handover Delay by Location Management in Mobile WiMAX Multicast and Broadcast Services," IEEE Transactions on Vehicular Technology, vol. 60, no. 2, pp. 605-617, February 2011.
- Jaechel Kim, Ji Hoon Lee, Hojin Lee, Taekyoung Kwon, and Yanghee Choi, "A Network Selection Scheme for Multicast Applications in Wireless Network Convergence," Wireless Communications and Mobile Computing, published online, DOI: 10.1002/wcm.1032, October 2010.
International Conference
- Youngbin Im, Hakyung Jung, Ji Hoon Lee, Wonjun Yoon, Ted "Taekyoung" Kwon, and Yanghee Choi, "Vertical Handovers in Multiple Heterogeneous Wireless Networks: A Measurement Study for the Future Internet," in Proc. International Conference on Future Internet Technologies (CFI) 2010, Seoul, Korea, June 2010.
- Ji Hoon Lee, Sangheon Pack, Taekyoung Kwon, and Yanghee Choi, "Proactive Transmission-based QoS Provisioning for Multicast and Broadcast Services in Mobile WiMAX Systems," in Proc. ACM Workshop on Mobile Internet Through Cellular Networks (MICNET), MobiCom'09, Beijing, China, September 2009.
- Jaecheol Kim, Ji Hoon Lee, Taekyoung Kwon, and Yanghee Choi, "Wireless Access Network Selection for Live Streaming Multicast in Future Internet," in Proc. International Conference on Future Internet Technologies (CFI), Seoul, Korea, June 2008.
- Hakyung Jung, Ji Hoon Lee, Chulhyun Park, Youngbin Im, Taekyoung Kwon, and Yanghee Choi, "A Femtocell-based Testbed for Evaluating Future Cellular Networks," in Proc. International Conference on Future Internet Technologies (CFI), Seoul, Korea, June 2008.
- Ji Hoon Lee, Sangheon Pack, Taekyoung Kwon, and Yanghee Choi, "Location Management Area (LMA)-based MBS Handover in Mobile WiMAX Systems," in Proc. IEEE International Conference on Communications System Software and Middleware (COMSWARE) 2008, pp. 341-348, Bangalore, India, January 2008.
Domestic Journal
- Ji Hoon Lee, Junho Suh, Ted "Taekyoung" Kwon, and Yanghee Choi, "Wireless Host Agent (WHA)-based IP Multicast Group Management Scheme," Journal of KICS, vol. 34, no. 10, pp. 1004-1012, 2009.
Domestic Conference
- Wonjun Yoon, Ji Hoon Lee, Ted "Taekyoung" Kwon, and Yanghee Choi, "Adaptive Access Control for a Femtocell Network," Proc. KICS Conference 2010 Fall, Seoul, Korea, November 2010.
- Obaid ur Rehman, Ji Hoon Lee, and Ted "Taekyoung" Kwon, "MBMS Performance Improvement Mechanism for UMTS," Proc. KICS Conference 2009 Fall, Suwon, Korea, November 2009.
- Junho Suh, Ji Hoon Lee, Ted "Taekyoung" Kwon, and Yanghee Choi, "Qualitative Analysis in PMIPv6-based Mobile Multicast Solutions," Proc. KICS Conference 2009 Fall, Suwon, Korea, November 2009.
- Ji Hoon Lee, Junho Suh, Ted "Taekyoung" Kwon, and Yanghee Choi, "An Efficient Mechanism for IP Multicast Group Management in Wireless Networks," Proc. Korea Computer Congress (KCC) 2009, Jeju, Korea, July 2009.
- Ji Hoon Lee, Soyoung Park, Chulhyun Park, Taekyoung Kwon, and Yanghee Choi, "The Effects of ARQ Timers on TCP Performance in IEEE 802.16 Systems," Proc. Korea Computer Congress (KCC) 2008, Phoenix Park, Gangwon-Do, Korea, June 2008.
- Bokgyun Jeon, Hojin Lee, Ji Hoon Lee, Taekyoung Kwon, and Yanghee Choi, "MBS Rate Adaptation Scheduling Scheme in IEEE 802.16e," Proc. KICS Conference 2007 Fall, Seoul, Korea, November 2007.
Patents
- Ji Hoon Lee, Mingu Cho, Shinhaeng Oh, Jinyoung Han, Taekyoung Kwon, and Yanghee Choi, "Automated Method for Composing Internet Video Diary and System using the Same," pending Korea 10-2010-0093695, September 23, 2010.
- Wang Xiaofei, Ji Hoon Lee, Taekyoung Kwon, and Young Han Kim, "Method for establishing route path in a wireless multiple hop network," pending Korea 10-2008-0101690, October 16, 2008.
- Jaekyu Cho, Ji Hoon Lee, Taekyoung Kwon, and Young Han Kim, "On the construnction of multicast tree for multi-source service in wireless mesh networks," pending Korea 10-2007-0110785, November 1, 2007.

Projects

2010.07-2010.12 Future Internet Service Demonstration: Internet Video Diary sponsored by Korea Internet & Security Agency.
2009.04-2010.07 Future Wireless Network Modeling sponsored by Korea Research Council of Fundamental Science & Technology.
2008.01-2009.12 Future Internet Testbed sponsored by MKE(Ministry of Knowledge Economy)/IITA(Institute for Information Technology Advancement).
2007.03-2008.12 Ubiquitos Comuputing and Networking sponsored by MIC(Ministry of Information and Communication).
2007.03-2007.12 Multicast and Broadcast in Future Internet sponsored by IITA(Institute for Information Technology Advancement).
2007.05-2008.04 WiMAX and WiBro Multicast Broadcast Service (MBS) Implementation sponsored by POSDATA
2006.04-2007.03 Research on WiBro Multicast Broadcast Service (MBS) sponsored by POSDATA

Last updated: Feb. 23 2011