Ki-Dong Lee's Homepage

Ki-Dong Lee, Ph.D, SMIEEE

Moved to
LGEMR Mobile Research,
10225 Willow Creek Road,
San Diego, CA 92131 U.S.A.
Phone: +1.858.805.6648
Email: ki_dong_lee (at) yahoo (dot) com http://sites.google.com/site/

(was) Research Associate
Data Communications Group
Department of Electrical and Computer Engineering
The University of British Columbia
CV is available upon request.

Short Bio

Ki-Dong Lee received the B.S. and M.S. degrees in operation research and the Ph.D. degree in industrial engineering (with applications to wireless networks) from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea. After four years at the Electronics and Telecomm. Research Institute (ETRI), Korea, as a Senior Member of Engineering Staff, he was with the Department of Electrical and Computer Engineering, the University of British Columbia, Canada, as a Research Associate. In 2007, he joined LG Electronics Mobile Research U.S.A., as a Senior Staff Researcher. His research interests are in optimization techniques, performance evaluations, and their applications to radio resource management in wireless multimedia networks.

Dr. Lee received the IEEE ComSoc AP Outstanding Young Researcher Award in 2004 and the AP Operations Research Society (APORS) Young Scholar Award in 2006, and he was listed in Marquis Who's Who in Science and Engineering and Marquis Who's Who in the World. He served as a TPC member for IEEE Globecom'05, IEEE IWCMC'05, QShine'07, IEEE CCECE'08, IEEE VTC'08Fall, IEEE IWCMC'08, and as a Coguest editor for the IEEE Wireless Communications. He is a Senior Member of the IEEE.

Research Areas & Interests

Optimization Theories and Their Applications
Radio Resource Management
Satellite Networks
Ad-hoc/Sensor Networks
Performance Evaluations & Queueing Networks

R&D Experiences

High-level design (HLD) and detailed design (DD) of resource management modules: scheduling algorithms, interface specifications;
C++ (Windows/Pentium III 2.0GHz); C (VxWorks, Motorola MCP 750).

Real-time Resource Management module of the BSAN system (DVB-RCS, ETRI , Aug. 2001 - Feb. 2003
Resource Management module of the MSIA system (mobility-enhanced DVB-RCS, ETSI EN 301-790 + hybrid CDMA/TDMA), ETRI, Aug. 2001 - Jan. 2004
Resource Management module of the MoBISAT system (interactive multimedia satellite system with high-mobility support, partially based on ETSI EN 301-790), ETRI, Feb. 2004 - Jul. 2005

Teaching Interests

Mathematical Programming for Engineering: linear programming (LP), non-linear programming (NLP), integer programming (IP), and dynamic programming (DP)
Non-linear Programming: unconstrained and constrained optimization (including basic concepts in linear programming); convex and non-convex optimization; numerical methods and rate of convergence
Optimization Techniques for Wireless Networks: diterministic and stochastic optimization techniques for network design and dimensioning; assignment problems and algorithms (including problems having uncertainity); routing and so on
Stochastic Processes and Queueing Theories for Engineering: fundamentals of probability theory; discrete and continuous Markov chains; open and closed queueing networks; approximation methods and so on
Estimation Theory (or Stochastic Signal Processing): linear and non-linear regression (filters); time-series analysis (AR, MA, ARMA, ARIMA, etc.)

Invited Book Chapters

Ki-Dong Lee and A. Iera, "Adaptive admission control by economically controlling state-dependent threshold(s) under a non-stationary traffic arrival process in wireless multimedia networks ," Adaptation Techniques in Wireless Multimedia Networks edited by Y. Xiao and Wei Li (Editors), Chapter 12, Nova Science Publishers, 2006 (ISBN: 1-59454-883-8).
Ki-Dong Lee and V. Leung, "Radio Resource Management in Broadband Wireless Multi-Hop Mesh Networks," to appear in World Scientific Press, Singapore edited by Prof. D. Agrawal, 2008.
Ki-Dong Lee, B. Yi and V. Leung, "Engergy efficient multimedia delivery in WMAN using user coopertion diversity," Piblisher (TBD), 2008.

Patents

I hold one US patent, five Korea patents, and eight US patents applications as well as several Europe patents as of Jan. 2008. More details can be refered to in the CV.

Journal Publications (Selected)

Some of the linked files are not available for a hardcopy, which are available upon request.

Ki-Dong Lee and V. Leung, "Utility-Based Rate-Controlled Parallel Wireless Transmission of Multimedia Streams with Multiple Importance Levels," IEEE Trans. Mobile Computing (TMC), , vol. 8, no. 1, pp. 81- 92, Jan. 2009.

Ki-Dong Lee, B. Yi and V. Leung, "Comparison of Multimedia Delivery Scenarios Using Parallel Channels with Path Diversity," accepted for publication, ACM/Springer J. Mobile Networks and Application (MONET) , vol. 12, pp. 324-334, March 2008.

Syed Hussein Ali, Ki-Dong Lee and V. Leung, "Throughput Constrained Opportunistic Scheduling in Cellular Data Networks," IEEE Transactions on Vehicular Technology , vol. 58, no. 3, pp. 1396-1406, March 2009.

Ki-Dong Lee, K.-N. Chang and V. Leung, "An Efficient Local Predictive Method for Distributed Timeslot Allocation in CDMA/TDD," IEEE Transactions on Wireless Commun., vol. 8, no. 5, pp. (xx)-(xx+10), May 2009.

Ki-Dong Lee, and V. Leung, "Evaluations of Achievable Rate and Power Consumption in Cooperative Cellular Networks with Two Classes of Nodes," IEEE Transactions on Vehicular Technology, vol. 57, no. 2, pp. 1166-1175, March 2008.

Ki-Dong Lee, and V. Leung, "Slot-Splitting TDD-CDMA for Wireless Networks," IEEE Transactions on Wireless Communications, vol. 6, no. 9, pp. 3181-3185, Sept. 2007.

S. H. Ali, Ki-Dong Lee, and V. Leung, "Dynamic Resource Allocation in OFDMA Wireless Metropolitan Area Networks," IEEE Wireless Communications Magazine --- Special issue: Radio Resource Management, vol. 14, no. 1, pp. 6-13, Feb. 2007.

Ki-Dong Lee, and V. Leung, "Fair Allocation of Subcarrier and Power in an OFDMA Wireless Mesh Network," IEEE Journal on Selected Areas in Communications --- Special issue: Multi-Hop Wireless Mesh Networks, vol. 24, no. 11, pp. 2051-2060, Nov. 2006.

Ki-Dong Lee, and V. Leung, " Capacity Planning for Group-Mobility Users OFDMA Wireless Networks," EURASIP J. Wireless Commun. Networking (Special Issue on Radio Resource Management 3G+), May 2006.

K.-N. Chang, Ki-Dong Lee, and D. Kim, "Optimal Timeslot and Channel Allocation Considering Fairness for Multicell CDMA/TDD Systems," Computers and Oper. Res., vol. 33, pp. 3203-3218, Nov. 2006.

D. Kim, D.H. Park, Ki-Dong Lee, and H.-J. Lee, "Minimum Length Transmission Scheduling of Return Channels for Multicode MF-TDMA Satellite Interactive Terminals," IEEE Transactions on Vehicular Technology, vol. 54, no. 5, pp. 1854-1862, Sept. 2005.

Ki-Dong Lee, "Variable-Target Admission Control for Nonstationary Handover Traffic in LEO Satellite Networks," IEEE Transactions on Vehicular Technology, vol. 54, no. 1, pp. 127-135, January 2005.

Ki-Dong Lee, "Corrections to "An Efficient Real-time Method for Improving Intrinsic Delay of Capacity Allocation in Interactive GEO Satellite Networks," IEEE Trans Veh Technol , vol. 53, no. 6, p. 1948, November 2004.

Ki-Dong Lee, "Delay Control for Non-Real-Time Data in Interactive Multimedia Satellite Networks," IEEE Communications Letters, vol. 8, no. 11, pp. 665-667, Nov 2004.

Ki-Dong Lee and Kun-Nyeong Chang, "A Real-Time Algorithm for Timeslot Assignment in Multirate Return Channels of Interactive Satellite Multimedia Networks," IEEE Journal on Selected Areas in Communications, vol. 22, no. 3, pp. 518-528, April 2004.

Ki-Dong Lee, "An Efficient Real-time Method for Improving Intrinsic Delay of Capacity Allocation in Interactive GEO Satellite Networks," IEEE Transactions on Vehicular Technology, vol. 53, no. 2, pp. 538-546, March 2004.

Ki-Dong Lee, Y.H.Cho, H.J.Lee, and D.G.Oh "Throughput-Maximizing Timeslot Scheduling for Interactive Satellite Multiclass Services," IEEE Communications Letters, vol. 7, no. 6, pp. 263-265, June 2003.

Ki-Dong Lee, and Sehun Kim, "Optimization for Adaptive Bandwidth Reservation in Wireless Multimedia Networks," Computer Networks, vol. 38, pp. 631-643, 2002.

Ki-Dong Lee, and Sehun Kim, "Modeling Variable User Mobility with Stochastic Correlation Concept," Computer Networks, vol. 38, pp. 603-612, 2002.

Ki-Dong Lee, H. Kim, Capacity Scheduling for Heterogeneous Mobile Terminals in Broadband Satellite Interactive Networks, ETRI Journal, June 2004.

Ki-Dong Lee, et al., Improving Efficiency of Timeslot Assignment for Non-Realtime Data in a DVB-RCS Return Link: Modeling and Algorithm, ETRI Journal, vol. 25, no. 4, Aug. 2003.

Ki-Dong Lee, et al., Optimal Design of Superframe Pattern for DVB-RCS Return Link, ETRI Journal, vol. 24, no. 3, pp. 251-254, June 2002.

H. Choi, H. Lee, Ki-Dong Lee, et al., Optimal Locations of Switches and Interconnections for ATM LANs, Computers & Oper. Res., vol. 28, no. 13, pp. 1347-1366, 2001.

S. Kim and Ki-Dong Lee, Modeling User Mobility in Microcellular Systems, IASTED Int.'l J. Model. & Simul., vol. 21, no. 2, pp. 132-137, 2001.

Conference Papers (Selected)

Some/most of the linked files are not available for a hardcopy, which are available upon request.

Ki-Dong Lee and V. Leung, "Rate scheduling of Multimedia Streams over Parallel Wireless Data Channels with Heterogeneous Reliability," EXTENDED PAPER (acceptance ratio of EP is 10.4%), Buffalo, NY, June 2006.

Ki-Dong Lee et al., "Adaptive Suboptimal Admission Control for Bulk Handover Requests in Multi-Beam Satellite Networks," in Proceedings of IEEE ICC, June 2004

Journal Papers Submitted (Selected)

Ki-Dong Lee, "A Framework for Carrier-User Pareto-Efficient Resource Allocation in Broadband Mobile Networks," submitted, Feb 2005.
etc.

Education

Ph.D. in Industrial Engineering (Operations Research with Applications to Wireless Networks), Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Taejon), Korea

Stochastic optimal resource management for prioritized admission in broadband wireless communications

M.S. in Operations Research (OR), Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Taejon), Korea
B.S. in Operations Research (OR), Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Taejon), Korea

Awards/Honors

Senior Member, IEEE, since 2007.

Outstanding Young Researcher Award , pic by IEEE Communications Society (ComSoc), May 2005 .
IFORS/APORS Young Scholar Award, IFORS/APORS, Jan 2006.
2008 Paper-of-the-Year Award, SK Telecom (Korea), Feb. 2009.
ETRI Journal Paper Award, ETRI, Jan 2005.
ETRI Outstanding Research Activity Recognition, ETRI - Digital Broadcasting Research Division, Jan 2005.
Bio listed in MARQUIS Who's Who in Science and Engineering , 2006, 2007.
Bio listed in MARQUIS Who's Who in the World , 2007.
Bio listed in MARQUIS Who's Who in America , 2009.
High School Student Science Paper Award, from President of KAIST, 1989: "On the rotational angular speed of the Earth with respect to the Sun - a three dimensional analysis".
Silver Medal, Korean Mathematical Olympiad (KMO), 1989. An annual nation-wide math competition organized by the Korean Math Society.

Professional Activities

Senior Member, IEEE ComSoc

Guest Editor: IEEE Wireless Communications Special Issue on The Synergy of Space and Terrestrial Communications in Next-generation Hybrid Wireless Systems (CFP (closed)), with Guest Editors Prof. A. Iera (Lead GE), Prof. A. Molinaro, and Dr. A. Salkintzis.
Technical Programm Committee (TPC) Member, IEEE GLOBECOM 2005, IWCMC 2006, QShine'07, IEEE WCMC 2008 (NGMN Symposium), IEEE CCECE 2008, 2009, IEEE VTC Fall 2008, etc.
Technical Paper Reviewer: IEEE J-SAC, IEEE Tran Computers, IEEE Tran Mobile Computing (TMC), IEEE Tran Veh Technol, IEEE Commun Lett, J Commun Net., EURASIP J. WCN., Wireless Pers. Comm.
Member, IEEE ComSoc Space and Satellite Communication Technical Committee