Chang-Gun Lee ( Professor )


 Address
 Real-time Ubiquitous System Laboratory
 Department of Computer Science and Engineering
 Seoul National University
 1 Gwanak-ro Gwanak-gu Seoul 151-744 Korea


 Telephone  +82-2-880-2562
 E-mail  cglee(at)snu.ac.kr
 Office  Building No.301, Room No.415


Introduction

Dr. Chang-Gun Lee received his BS, MS, and Ph.D. degrees from the Department of Computer Engineering at Seoul National University in 1991, 1993, and 1998, respectively. During his study as a Ph.D. candidate, he was a member of the Real-Time research group at Seoul National University. He was also a visiting student to the University of Virginia from Jan. to Mar. 1996 to work with Prof. Son in the Computer Science Department. From March 1998 to Feburary 2000, we worked for LG Information & Communications Ltd. developing real-time software platform and UMTS signaling protocols for IMT-2000 mobile terminals. From March 2000 to July 2002, he was a Post Doctoral Research Associate in the Department of Computer Science at University of Illinois working with Prof. Sha. From August 2002 to August 2006, he was an assistant professor in the Department of Electrical and Computer Engineering, Ohio State University , Columbus, Ohio. He joined the School of Computer Science and Engineering, Seoul National University from September 2006.

Research interests :
    · Real-Time and Embedded System Architecture
    · Real-Time Communications
    · QoS Management in Control Applications, Multimedia Systems, and Web Servers
    · Satellite and Mobile Communications
    · Wireless Sensor Networks
    · Real-Time Ubiquitous Systems


Publications

 International Journals

· Kang-Wook Kim, Jihey Kwon, Chang-Gun Lee, and Junghee Han, Accurate Indoor Location Tracking Exploiting Ultrasonic Reflections, in IEEE Sensors Journal, Vol. 16, No. 24, pp. 9075-9088, Dec. 2016.
· Hyekyung Woo, Youngtae Cho, Eunyoung Shim, Jong Koo Lee, Chang-Gun Lee, and Seong Hwan Kim, Estimating influenza outbreaks using both search engine query data and social media data in South Korea, in Journal of Medical Internet Research(JMIR), Canada, Vol. 18, No. 7, July 2016.
· Kang-Wook Kim, Myung-Gon Park, Junghee Han, and Chang-Gun Lee, A Holistic Approach to Optimizing the Lifetime of IEEE 802.15.4/ZigBee Networks with a Deterministic Guarantee of Real-Time Flows, in Journal of Computing Science and Engineering, Vol. 9, No. 2, pp. 83-97, June 2015.
· Prasad Calyam, Lakshmi Kumarasamy, Chang-Gun Lee, and Fusun Ozguner, Ontology-based Semantic Priority Scheduling for Multi-domain Active Measurements, in Journal of Network and Systems Management, July 2014.
· Kyoung-Soo We, Chang-Gun Lee, Kyongsu Yi, Kwei-Jay Lin, and Yun Sang Lee, HRT-PLRU: A New Paging Scheme for Executing Hard Real-Time Programs on NAND Flash Memory, in IEEE Transactions on Computers, Vol. 63, No. 4, pp. 927-940, Apr. 2014.
· Oh-Chul Kwon, Jusung Kim, and Chang-Gun Lee, Adaptive I/O Switching for Seamless Convergence of Smart Phones and External I/O Devices, in Journal of Computer Science, Vol. 10, Issue 7, pp. 1238-1248, Feb. 2014.
· Duhee Lee, Jong-Chan Kim, Chang-Gun Lee, and Kanghee Kim, mRT-PLRU: A General Framework for Real-Time Multi-Task Executions on NAND Flash Memory, in IEEE Transactions on Computers, Vol. 62, No. 4, Apr. 2013.
· JuHyun Lee, Hoyoung Hwang, KyeongHo Park, Chang-Gun Lee, and Sungsoo Lim, A Fair Scheduling Algorithm with Delay-Bandwidth Normalized Service Sharing, in Information Journal, Vol. 15, No. 7, pp. 3107-3124, July 2012.
· Jong-Chan Kim, Duhee Lee, Chang-Gun Lee, and Kanghee Kim, RT-PLRU: A New Paging Scheme for Real-Time Execution of Program Codes on NAND Flash Memory for Portable Media Players, in IEEE Transactions on Computers, Vol. 60, Issue 8, pp. 1126-1141, Aug. 2011.
· Kyeongho Park, Ju Hyun Lee, Hoyoung Hwang, Chang-Gun Lee, Sang Lyul Min, and Hyo-Joong Suh, Analysis of Autonomous Bandwidth-Delay-Balancing Characteristic in the Decay Usage Scheduler, in Information Journal, Vol. 14, No. 5, pp. 1645-1662, May 2011.
· Man-Ki Yoon, Chang-Gun Lee, and Junghee Han, Migrating from Per-Job Analysis to Per-Resource Analysis for Tighter Bounds of End-to-End Response Times, in IEEE Transactions on Computers, Vol. 59, pp. 933-942, July 2010.
· Jung-Eun Kim, Junghee Han, and Chang-Gun Lee, Optimal 3-Coverage with Minimum Separation Requirements for Ubiquitous Computing Environments, in ACM/Springer Mobile Networks and Applications, Oct. 2009.
· Jiho Ryu, Chang-Gun Lee, Taekyoung Kwon, and Junghee Han, Combined Scheduling and Routing for Deterministic Guarantee of End-to-End Deadlines in Cell Structured Sensor Networks, in IEEE Sensors Journal, Vol. 9, Issue 10, pp. 1291-1301, Oct. 2009.
· KangHee Kim and Chang-Gun Lee, A Safe Stochastic Analysis with Relaxed Limitations on the Periodic Task Model, in IEEE Transactions on Computer, May 2009.
· Min-Young Nam, Mhd Zaher Al-Sabbagh, Jung-Eun Kim, Man-Ki Yoon, Chang-Gun Lee, and Eun-Yong Ha, A Real-time Ubiquitous System for Assisted Living: Combined Scheduling of Sensing and Communication for Real-Time Tracking, in IEEE Transactions on Computers, Vol. 57, June 2008.
· Prasad Calyam, Chang-Gun Lee, Eylem Ekici, Mark Haffner, and Nathan Howes, Orchestration of Network-wide Active Measurements for Supporting Distributed Computing Applications, in IEEE Transactions on Computers, Vol. 56, Dec. 2007.
· Prasad Calyam, Eylem Ekici, Chang-Gun Lee, Mark Haffner, and Nathan Howes, A "GAP-Model" based Framework for Online VVoIP QoE Measurement, in Journal of Communications and Networks, Vol. 9, Dec. 2007.
· Phil-Su Kang and Chang-Gun Lee, Search and Track Coordination in Multi-Ship Multi-Radar Systems Using Schedulability Envelope, in Journal of Real-Time Systems, Vol. 36, Aug. 2007.
· Chang-Gun Lee, P.-S. Kang, C.-S. Shih, and L. Sha, Schedulability Envelope for Real-Time Radar Dwell Scheduling, in IEEE Transactions on Computers, Vol. 55, Issue 12, pp. 1599-1613, Dec. 2006.
· L. Sha and Chang-Gun Lee, Real-Time Virtual Machines for Avionics Software Migration, in International Journal of Embedded Systems, Dec. 2006.
· S. Gopalakrishnan M. Caccamo, C.-S. Shih, Chang-Gun Lee, and L. Sha, Finite-Horizon Scheduling of Radar Dwells with Online Template Construction, in Real-Time Systems Journal, Vol. 33, Issue 1-3, pp. 47-75, July 2006.
· E. Felemban, Chang-Gun Lee, and E. Ekici, MMSPEED: Multi-path Multi-SPEED Protocol for QoS Guarantee of Reliability and Timeliness in Wireless Sensor Networks, in IEEE Transactions on Mobile Computing, Vol. 5, pp. 738-754, June 2006.
· Kanghee Kim, Diaz, J.L., Bello, L.L., Lopez, J.M., Chang-Gun Lee, and Sang Lyul Min, An Exact Stochastic Analysis of Priority-Driven Periodic Real-Time Systems and Its Approximations, in IEEE Transactions on Computers, Vol. 54, pp. 1460-1466, Nov. 2005.
· Chang-Gun Lee, Chi-Sheng Shih, and Lui Sha, Online QoS Optimization Using Service Classes in Surveillance Radar Systems, in Journal of Real-Time Systems, Vol. 28, Issue 1, pp. 5-37, Oct. 2004.
· Chang-Gun Lee, Lui Sha, and A. Peddi, Enhanced Utilization Bounds for QoS Management, in IEEE Transactions on Computers, Vol. 53, Issue 2, pp. 187-200, Feb. 2004.
· Chang-Gun Lee, K.-P. Lee, J. Hahn, Y.-M. Seo, S. L. Min, R. Ha, S. Hong, C. Y. Park, M. Lee, and C. S. Kim, Bounding Cache-related Preemption Delay for Real-time Systems, in IEEE Transactions on Software Engineering, Vol. 27, Issue 9, pp. 805-826, Sept. 2001.
· S. Lee, S. L. Min, C. S. Kim, Chang-Gun Lee, and M. Lee, Cache-Conscious Limited Preemptive Scheduling, in Journal of Real-Time Systems, Vol. 17, Issue 2-3, pp. 257-282, Nov. 1999.
· H. S. Chang, B. W. Kim, Chang-Gun Lee, S. L. Min, Y. Choi, H. S. Yang, D. N. Kim, and C. S. Kim, FSA-Based Link Assignment and Routing in Low-Earth Orbit Satellite Networks, in IEEE Transactions on Vehicular Technology, Vol. 47, Issue 3, pp. 1037-1048, Aug. 1998.
· S. Lee, Chang-Gun Lee, M. Lee, S. L. Min, and C. S. Kim, Limited Preemptible Scheduling to Embrace Cache Memory in Real-Time Systems, in Proceedings of the ACM SIGPLAN Workshop on Languages, Compilers, and Tools for Embedded Systems, Vol. 1474, pp. 51-64, Jan. 1998.
· Chang-Gun Lee, J. Hahn, Y.-M. Seo, S. L. Min, R. Ha, S. Hong, C. Y. Park, M. Lee, and C. S. Kim, Analysis of Cache-related Preemption Delay in Fixed-priority Preemptive Scheduling, in IEEE Transactions on Computers, Vol. 47, Issue 6, pp. 700-713, Jan. 1998.


 International Conferences

· Victoria Shangina, Kyoung-Soo We, and Chang-Gun Lee, Executing Real-Time Programs on negative-AND Flash Memory Considering Read Disturb Errors, Executing Real-Time Programs on negative-AND Flash Memory Considering Read Disturb Errors, in 2017 3rd IEEE International Conference on Computer and Communications (ICCC), Chengdu, China, Dec. 2017.
· Wonseok Lee, Kyoung-Soo We, Seunggon Kim, Sangyoun Paik, Jonathon Soulis, and and Chang-Gun Lee, An ECU-Close Design/Verification Tool for Automotive Systems, in IEEE Real-Time Systems Symposium, Paris, France, Dec. 2017.
· Kyoung-Soo We, Seunggon Kim, Wonseok Lee, and Chang-Gun Lee, Functionally and Temporally Correct Simulation of Cyber-Systems for Automotive Systems, in IEEE Real-Time Systems Symposium (RTSS), to be appeared, Dec. 2017.
· Jeongyoon Eo, Kang-Wook Kim, and Chang-Gun Lee, Memory Access Pattern-Aware DRAM Controller Design for Mixed-Criticality Systems, in Seventh Workshop on Design, Modeling and Evaluation of Cyber Physical Systems (CyPhy), Seoul, Oct. 2017.
· Kang-Wook Kim, Jeongyoon Eo, and Chang-Gun Lee, A Problem of Time vs. Density Tradeoff in Multicore Fluid Scheduling, in Real-Time Scheduling Open Problems Seminar, Dubrovnik, Croatia, pp. 21-22, June 2017.
· Jihwa Lee, Jong-Chan Kim, and Chang-Gun Lee, ECU Consolidation for Multiple Automotive Applications with Adaptive Variable-Rate Tasks, ECU Consolidation for Multiple Automotive Applications with Adaptive Variable-Rate Tasks, in Fédération Internationale des Sociétés d'Ingénieurs des Techniques de l'Automobile (FISITA) 2016 World Automotive Congress, Busan, South Korea, Sept. 2016.
· Hyejin Joo, Kyoung-Soo We, Seunggon Kim, and Chang-Gun Lee, An End-to-End Tool for Developing CPSs from Design to Implementation, in The First International Workshop on Verification and Validation of Cyber-Physical Systems, Reykjavik University, Iceland, June 2016.
· Jihye Kwon, Kang-Wook Kim, Sangyoun Paik, Jihwa Lee, and Chang-Gun Lee, Multicore Scheduling of Parallel Real-Time Tasks with Multiple Parallelization Options, in 21st IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), Seattle, Washington, Apr. 2015.
· Kyoung-Soo We, Chang-Gun Lee, Junyung Lee, Kyuwon Kim, Kyongsu Yi, and Jong-Chan Kim, ECU-in-the-Loop Real-Time Simulation Technique for Developing Integrated Vehicle Safety System, in International Conference on Control, Automation and Systems (ICCAS 2014), Gyeonggi-do, Korea, Oct. 2014.
· Jong-Chan Kim, Kyoung-Soo We, Chang-Gun Lee, Yuyeon Oh, Junyung Lee, Kyuwon Kim, and Kyongsu Yi, Integrated Vehicle Safety Control Development: ECU-in-the-LOOP Real-Time Simulation Case Study, in Design and Automation Conference (DAC 2014), San Francisco, CA, June 2014.
· Sung-Soo Lim, Eun-Jin Im, Nikil Dutt, Kyung Woo Lee, Insik Shin, Chang-Gun Lee, and Insup Lee, A Reliable, Safe, and Secure Run-Time Platform for Cyber Physical Systems, in IEEE 6th International Conference on Service-Oriented Computing and Applications (SOCA 2013), Kauai, Hawaii, Dec. 2013.
· Kyoung-Soo We, Jong-Chan Kim, Yuyeon Oh, Sangmin Jeong, and Chang-Gun Lee, Demo Abstract: An Efficient and Easilly Reconfigurable Cyber-Physical Simulator, in International Conference on Cyber-Physical Systems (ICCPS 2013), Philadelphia, USA, pp. 245, Apr. 2013.
· Kyoung-Soo We, Jae-Hwa Han, Jong-Chan Kim, Yuyeon Oh, Chiyoung Oh, and Chang-Gun Lee, A Novel Real-Time Simulator for Smooth Development of CPSs from All-Simulated Systems to All-Real Systems, in 33rd IEEE Real-Time Systems Symposium, San Juan, Puerto Rico, Dec. 2012.
· Kang-Wook Kim , Myung-Gon Park , Takao Hishikawa, Junghee Han, and Chang-Gun Lee, Exploiting Ultrasonic Reflections for Improving Accuracy of Indoor Location Tracking, in The 9th IEEE International Conference on Ubiquitous Intelligence and Computing (UIC 2012), Fukuoka, Japan, Sept. 2012.
· Jae-Hwa Han, Kyoung-Soo We, and Chang-Gun Lee, WiP Abstract: Cyber Physical Simulations for Supporting Smooth Development from All-simulated Systems to All-real Systems, in International Conference on Cyber-Physical Systems (ICCPS'12), Beijing, China, Apr. 2012.
· Jong-Chan Kim, Kyoung-Soo We, Chang-Gun Lee, Kwei-Jay Lin, and Yun Sang Lee, HW Resource Componentizing for Smooth Migration from Single-function ECU to Multi-function ECU, in the 27th ACM Symposium on Applied Computing (SAC'12), Trento, Italy, Mar. 2012.
· Kang-Wook Kim and Chang-Gun Lee, Experimental Feasibility Study on Using Ultrasonic Reflections for Indoor Human Movement Tracking, in the 1st International Workshop on Large-Scale Cyber-Physical Systems (LCPS), Irvine, USA, Dec. 2011.
· Kyoung-Soo We, Jong-Chan Kim, and Chang-Gun Lee, A Novel Simulation Framework for Supporting Real-Time Cyber-Physical Interactions, in the 1st International Workshop on Large-Scale Cyber-Physical Systems (LCPS), Irvine, USA, Dec. 2011.
· JuHyun Lee, Hoyoung Hwang, KyeongHo Park, Chang-Gun Lee, and Sungsoo Lim, Delay-Bandwidth Normalized Service Sharing with Service Rate Guarantees, in Research in Applied Computation Symposium (RACS), Miami, USA, pp. 118-123, Nov. 2011.
· Oh-Chul Kwon, Jusung Kim, Chang-Gun Lee, Hea-Jung Ryu, and Chil-Woo Lee, Modification of Android Platform for Seamless Convergence of Smart Phones and External Input/Output Devices, in The 1st Android Competition in Embedded Systems Week (ESWEEK'11), Taipei, Taiwan, pp. 91-98, Oct. 2011.
· Oh-Chul Kwon, Jusung Kim, Jae-Hwa Han, Chang-Gun Lee, and Chil-Woo Lee, Convergence of Mobile Devices with External High-Quality UI Devices, in the 1st International Conference on Mobile IT Convergence (ICMIC'11), Gumi, Republic of Korea, pp. 91-98, Sept. 2011.
· Jong-Chan Kim, Kyoung-Soo We, and Chang-Gun Lee, HW Resource Componentizing for Addressing the Mega-Complexity of Cyber-Physical Systems, in the 1st International Workshop on Cyber-Physical Systems, Networks, and Applications (CPSNA'11), Toyama, Japan, Aug. 2011.
· Kyung-Joon Park, Man-Ki Yoon, Kyungtae Kang, and Chang-Gun Lee, Scheduling and Control Co-Design under End-to-End Response Time Constraints in Cyber-Physical Systems, in the 30th IEEE International Conference on Computer Communications (INFOCOM 2011), Shanghai, China, pp. 762 - 767, Apr. 2011.
· Myung-Gon Park, Kang-Wook Kim, and Chang-Gun Lee, Holistic Optimization of Real-Time IEEE 802.15.4/ZigBee Networks, in Advanced Information Networking and Applications, Singapore, pp. 443-450, Mar. 2011.
· Jong-Chan Kim, Kyoung-Soo We, and Chang-Gun Lee, HW Componentizing Kernel: A New Approach to address the Mega Complexity of Future Automotive CPS, in NIST/NSF/USCAR Workshop on Developing Dependable and Secure Automotive Cyber-Physical Systems from Components, Troy, USA, Mar. 2011.
· Byung-Sung Park, Jin Oue Jung, Hoon Choi, Oh-Chul Kwon, Jusung Kim, and Chang-Gun Lee, UPnP-Based Non-IP Device Link-Up and Service Sharing Mechanism under the Android Environment, in the 5th International Conference on Ubiquitous Information Technologies and Applications (CUTE), pp. 1-8, Dec. 2010.
· Kwangyoon Cho, Kyoung-Soo We, Chang-Gun Lee, and Kanghee Kim, Using NAND Flash Memory for Executing Large Volume Real-Time Programs in Automotive Embedded Systems, in International Conference on Embedded Software (EMSOFT), Scottsdale, U.S., Oct. 2010.
· Kyoung-Soo We, Duhee Lee, and Chang-Gun Lee, Summary of Design Flows for Using NAND Flash Memory for Soft/Hard Real-Time Programs, in International Workshop on Software Support for Portable Storage (IWSSPS), Scottsdale, U.S., Oct. 2010.
· Kyeongho Park, Ju Hyun Lee, Hoyoung Hwang, Chang-Gun Lee, Sang Lyul Min, and Hyo-Joong Su, Analysis of Autonomous Bandwidth-Delay-Balancing Characteristic in the Decay Usage Scheduler, in Reliable and Autonomous Computational Science (RACS) Conference, Atlanta, U.S., Oct. 2010.
· Duhee Lee, Chang-Gun Lee, and Kanghee Kim, A Generic Framework for Soft Real-Time Program Executions on NAND Flash Memory in Multi-Tasking Embedded Systems, in 30th IEEE Real-Time Systems Symposium, Washington D.C., U.S., Dec. 2009.
· Duhee Lee, Chang-Gun Lee, and Kanghee Kim, Real-time code execution on NAND flash memory supporting wide-spectrum of input data for multiple tasks, in International Workshop on Software Support for Portable Storage, France, Oct. 2009.
· Soo-Hwan Park, Kyoung-Soo We, and Chang-Gun Lee, Middleware-level Techniques to Solve the Conflict Problem between Multiple Tasks on Robotics System, in International Conference on Automation, Robotics and Control Systems, Orlando, U.S., July 2009.
· Jong-Chan Kim, Duhee Lee, Chang-Gun Lee, Kanghee Kim, and Eun Young Ha, Real-Time Program Execution on NAND Flash Memory for Portable Media Players, in 29th IEEE Real-Time Systems Symposium, Barcelona, Spain, Nov. 2008.
· Duhee Lee, Jong-Chan Kim, and Chang-Gun Lee, Practical Paging Strategy for Real-Time Code Execution of Media Player on NAND Flash Memory, in The International Workshop on Software Support for Portable Storage, Atlanta, U.S., Oct. 2008.
· Jung-Eun Kim, Man-Ki Yoon, Junghee Han, and Chang-Gun Lee, Sensor Placement for 3-Coverage with Minimum Separation Requirements, in The 4th IEEE International Conference on Distributed Computing in Sensor Systems, Santorini Island, Greece, June 2008.
· Prasad Calyam, Mark Haffner, Eylem Ekici, and Chang-Gun Lee, Measuring Interaction QoE in Internet Videoconferencing, in the 10th IFIP/IEEE International Conference on Management of Multimedia and Mobile Networks and Services, Oct. 2007.
· Jaewoo Lee, Kern Koh, and Chang-Gun Lee, Multi-Speed DVS Algorithms for Periodic Tasks with Non-Preemptible Sections, in the 13th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, Aug. 2007.
· J.C. Hou, Qixin Wang, B.K. AlShebli, L. Ball, S. Birge, M. Caccamo, Chin-Fei Cheah, E. Gilbert, C.A. Gunter, E. Gunter, Chang-Gun Lee, K. Karahalios, Min-Young Nam, N. Nitya, C. Rohit, Lui Sha, Wook Shin, S. Yu, Yang Yu, and Zheng Zeng, PAS: A Wireless-Enabled, Sensor-Integrated Personal Assistance System for Independent and Assisted Living, in Joint Workshop on High Confidence Medical Devices, Software, and Systems and Medical Device Plug-and-Play Interoperability (HCMDSS-MDPnP), pp. 64-75, June 2007.
· M.-Y. Nam, M. Z. Al-Sabbagh, and Chang-Gun Lee, Combined Scheduling of Sensing and Communication for Real-Time Indoor Tracking in Assisted Living, in the 27th IEEE Real-Time Systems Symposium, pp. 281-290, Dec. 2006.
· M.-Y. Nam, Chang-Gun Lee, K. Kim, and M. Caccamo, Time-parameterized Sensing Task Model for Real-Time Tracking, in the 26th IEEE Real-Time Systems Symposium, pp. 245-255, Dec. 2005.
· P. Calyam and Chang-Gun Lee, Characterizing Voice and Video Traffic Behavior over the Internet, in ISCIS, Dec. 2005.
· P. Calyam, Chang-Gun Lee, P. K. Arava, and D. Krymskiy, Enhanced EDF Scheduling Algorithms for Orchestrating Network-wide Active Measurements, in the 26th IEEE Real-Time Systems Symposium, pp. 123-132, Dec. 2005.
· Y. Gu, D. Bozdag, E. Ekici, F. Ozguner, and Chang-Gun Lee, Partitioning-Based Mobile Element Scheduling in Wireless Sensor Networks, in IEEE SECON, pp. 386-395, Sept. 2005.
· R. Boder and Chang-Gun Lee, Real-Time Guarantee of Aperiodic Packets in Single-Hop Ad-hoc Wireless Networks, in the 11th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, pp. 254-259, Aug. 2005.
· D. Thomas, S. Gopalakrishnan, M. Caccamo, and Chang-Gun Lee, Spare CASH: Reclaiming Holes to Minimize Aperiodic Response Times in a Firm Real-Time Environment, in the 17th IEEE EUROMICRO Conference on Real-Time Systems, pp. 147-156, July 2005.
· P. Calyam, Chang-Gun Lee, P. K. Arava, D. Krymskiy, and D. Lee, OnTimeMEasure: A Scalable Framework for Scheduling Active Measurements, in IEEE E2EMON, pp. 86-100, May 2005.
· Chang-Gun Lee, A Novel Framework for Quality-aware Resource Management in Phased Array Radar Systems, in 11th IEEE Real-Time and Embedded Technology and Applications Symposium, pp. 322-331, Mar. 2005.
· E. Felemban, Chang-Gun Lee, E. Ekici, R. Boder, and S. Vural, Probabilistic QoS Guarantee in Reliability and Timeliness Domains in Wireless Sensor Networks, in IEEE INFOCOM, Vol. 4, pp. 2646-2657, Mar. 2005.
· S. Gopalakrishnan, M Caccamo, C.-S. Shih, Chang-Gun Lee, and L. Sha, Finite-Horizon Scheduling of Radar Dwells with Online Template Construction, in the 25th IEEE Real-Time Systems Symposium, pp. 23-33, Dec. 2004.
· C.-S. Shih, M. Caccamo, L. Sha, and Chang-Gun Lee, Radar Dwell Scheduling with Temporal Distance and Energy Constraints, in Radar 2004 International Conference, Oct. 2004.
· Chang-Gun Lee, P.-S. Kang, C.-S. Shih, M. Caccamo, and L. Sha, Schedulability Envelope for Real-Time Radar Dwell Scheduling and Its Application to Multi-Ship Multi-Radar Systems, in Radar 2004 International Conference, Oct. 2004.
· P.-S. Kang and Chang-Gun Lee, Coordinated Search and Track by Multiple Phased Array Radars, in Procceings of the 10th IEEE Real-Time and Embedded Technology and Applications Symposium, pp. 227-235, May 2004.
· Chang-Gun Lee, P.-S. Kang, C.-S. Shih, and L. Sha, Radar Dwell Scheduling Considering Physical Characteristics of Phased Array Antenna, in Procceings of the 24th IEEE International Real-Time Systems Symposium, pp. 14-24, Dec. 2003.
· Chang-Gun Lee and Lui Sha, Enhanced Processor Budget for QoS Management in Multimedia Systems, in the 17th Parallel and Distributed Processing Symposium, Apr. 2003.
· J.L. Diaz, D.F. Garcia, K. Kim, Chang-Gun Lee, L.L. Bello, J.M. Lopez, S.L. Min, and O. Mirabella, Stochastic Analysis of Periodic Real-Time Systems, in the 23rd IEEE Real-Time Systems Symposium, pp. 289-302, Dec. 2002.
· Chang-Gun Lee, Chi-Sheng Shih, and Lui Sha, Service Class based Online QoS Management in Surveillance Radar Systems, in the 22nd IEEE Real-Time Systems Symposium, pp. 139-148, Dec. 2001.
· C.-H. Yon, Chang-Gun Lee, and O.-H. Jeong, A Modular Approach to Developing UMTS Signaling Protocols, in The 3rd China-Korea Joint Symposium on Wireless Communication Technology, pp. 37-43, Aug. 1999.
· Chang-Gun Lee, J. Hahn, Y.-M. Seo, S. L. Min, R. Ha, S. Hong, C. Y. Park, M. Lee, and C. S. Kim, Enhanced Analysis of Cache-related Preemption Delay in Fixed-priority Preemptive Scheduling, in the 18th IEEE Real-Time Systems Symposium, pp. 187-198, Dec. 1997.
· Chang-Gun Lee, J. Hahn, Y.-M. Seo, S. L. Min, R. Ha, S. Hong, C. Y. Park, M. Lee, and C. S. Kim, Analysis of Cache-related Preemption Delay in Fixed-priority Preemptive Scheduling, in the 17th IEEE Real-Time Systems Symposium, pp. 264-274, Dec. 1996.
· Chang-Gun Lee, Y.-K. Kim, S. H. Son, S. L. Min, and C. S. Kim, Efficiently Supporting Hard/Soft Deadline Transactions in Real-Time Database Systems, in the 3rd International Workshop on Real-Time Computing Systems and Applications, pp. 74-80, Nov. 1996.
· H. S. Chang, B. W. Kim, Chang-Gun Lee, Y. H. Choi, S. L. Min, H. S. Yang, D. N. Kim, and C. S. Kim, Performance Comparison of Static Routing and Dynamic Routing in Low-earth Orbit Satellite Networks, in IEEE Vehicular Technology Conference, Vol. 2, pp. 1240-1243, Apr. 1996.
· H. S. Chang, B. W. Kim, Chang-Gun Lee, Y. H. Choi, S. L. Min, H. S. Yang, and C. S. Kim, Topological Design and Routing for Low-Earth Orbit Satellite Networks, in IEEE GLOBECOM, pp. 529-535, Nov. 1995.


 Domestic Journals

· Seunggon Kim, Kyoung-Soo We, Chang-Gun Lee, and Kyongsu Yi, 자동차 제어 시스템의 실시간 성능 검증을 위한 효율적인 실시간 시뮬레이션 기법, in Journal of Institute of Control, Robotics and Systems, Vol. 21, No. 3, pp. 187-193, Mar. 2015.
· Sungsoo Lim, Eun-Jin Im, Chang-Gun Lee, Kyoung Woo Lee, Insik Shin, Nikil Dutt, and Insup Lee, 사이버 물리 시스템을 위한 신뢰성, 안정성, 보안성을 갖춘 플랫폼 기술, in 정보과학회지, Vol. 31, No. 12, Dec. 2013.
· Kyoung-Soo We, Jong-Chan Kim, Yuyeon Oh, and Chang-Gun Lee, 사이버 물리 시스템의 안정적인 개발을 지원하는 End-to-End 개발 도구, in 정보과학회지, Vol. 31, No. 12, pp. 47-54, Dec. 2013.
· Oh-Chul Kwon, Jihye Kwon, and Chang-Gun Lee, 스마트폰의 외부 디스플레이 활용을 위한 최적 자원 관리 방법, in Telecommunications Review, Dec. 2013.
· Jae-Hwa Han, Kyoung-Soo We, and Chang-Gun Lee, CPS의 점진적인 개발 과정을 지원하는 실시간 시뮬레이션 프레임워크, in 대한임베디드공학회논문지, Vol. 7, No. 6, Dec. 2012.
· Kyoung-Soo We, Chang-Gun Lee, and Soo-Hwan Park, 유동 데드라인 태스크 시스템에서의 효율적 스케줄링 기법, in 정보과학회논문지 : 컴퓨팅의 실제 및 레터, Vol. 17, No. 2, Mar. 2011.
· Jusung Kim, Oh-Chul Kwon, and Chang-Gun Lee, 안드로이드 모바일 플랫폼에서의 동적 해상도 자동전환을 위한 프레임버퍼 구조 개발, in 정보과학회논문지 : 컴퓨팅의 실제 및 레터, Vol. 16, No. 12, Dec. 2010.


 Domestic Conferences

· Nushaba Gadimli, Wee Kyoung-Soo, Chang-Gun Lee, and , Execution of Soft Real-time Program on NAND Flash Memory with Guaranteed Reliability, NAND 플래시 메모리 상에서 수행되는 연성 실시간 프로그램의 신뢰성 보장 기법, in 2017 한국정보과학회 고신뢰컴퓨팅 하계워크샵, Jeju, August 2017, Korea, July 2017.
· Nushaba Gadimli and Chang-Gun Lee, Reliability for Real-Time Multitask Executions on NAND Flash Memory, NAND플래시 메모리에서의 실시간 멀티 태스크 실행에 대한 신뢰성, in KCC 2017, Ramada Plaza Jeju hotel, Jeju island, Republic of Korea, June 2017.
· Victoria Shangina and Chang-Gun Lee, Executing Real-Time Programs on NAND Flash Memory Considering Read Disturb Errors​, in Korea Computer Congress 2017 (KCC 2017), Jeju, June 2017.
· Seunggon Kim, Youngeun Cho, Sangyoun Paik, and Chang-Gun Lee, PC-based Estimation of ECU Dynamic Memory, PC 기반 ECU 동적 메모리 측정 기법, in Korea Computer Congress 2017(KCC 2017), Jeju, June 2017.
· Wonseok Lee, Kyoung-Soo We, Seunggon Kim, and Chang-Gun Lee, Simulator Structure for Lockstep ECU, Lockstep ECU를 위한 시뮬레이터 구조, in Korea Computer Congress 2017 (KCC 2017), Jeju, June 2017.
· WonJae Jang, Jihwa Lee, and Chang-Gun Lee, Improving Schedulability for Periodic Task under GEDF Test Using Parallelization, 병렬화를 이용한 주기적 태스크 모델의 GEDF 테스트의 성능 향상, in Korea Computer Congress 2017 (KCC 2017), Jeju, June 2017.
· Chan-Hee Choi, Kang-Wook Kim, and Chang-Gun Lee, Multiple GPGPUs Response Time Measurement and Simulation for Real-time Systems, 실시간 시스템에서의 멀티 GPGPU 응답시간 측정 및 시뮬레이션, in KIISE 43rd Winter Conference, Pyeongchang, Dec. 2016.
· Victoria Shangina and Chang-Gun Lee, NAND-Flash Memory Reliability and Power Consumption Issues Overcoming Technique in Case of Read Intensive Memory Access Pattern, in KIISE 43rd Winter Conference, Pyeongchang, Dec. 2016.
· Jeongyoon Eo and Chang-Gun Lee, A Survey on Minimizing Memory Interference Delay in Multi-core Systems, 멀티코어 시스템에서 메모리 간섭 딜레이를 최소화하는 방법들에 대하여, in KIISE 43rd Winter Conference, Pyeongchang, Dec. 2016.
· Seunggon Kim, Kyoung-Soo We, and Chang-Gun Lee, MATLAB Model-based ECU Code Auto-Generation Technique, MATLAB 모델 기반 ECU 코드 자동 생성 기법, in KIISE 43rd Winter Conference, Pyeongchang, Dec. 2016.
· Nushaba Gadimli and Chang-Gun Lee, Real Time Reliability on NAND Falsh Memory, 낸드 플래시에 실시간 신뢰성, in KIISE 43rd Winter Conference, Pyeongchang, Dec. 2016, Pyeongchang, Dec. 2016.
· Nushaba Gadimli and Chang-Gun Lee, Research on NAND Flash Memory Reliability Improvement, NAND 플래시 메모리에 신뢰성을 향상시키는 연구, in Korea Computer Congress 2016 (KCC 2016), Jeju, July 2016.
· Victoria Shangina and and Chang-Gun Lee, Research of reliability and power consumption issues of NAND-flash memory and overview of power consumption models, 낸드 플래시 메모리의 신뢰도와 전력 소비와 전력 소비량 모델 개요의 조사, in Korea Computer Congress 2016 (KCC 2016), Jeju, June 2016.
· Jeongyoon Eo and Chang-Gun Lee, Towards Tight Bounding of Memory Interference Delay: Memory Access Pattern-Aware DRAM Partitioning, 정확한 메모리 간섭 딜레이 분석을 위한 메모리 액세스 패턴 기반 DRAM 분할 기법, in Korea Computer Congress 2016(KCC 2016), Jeju, June 2016.
· Youngeun Cho and Chang-Gun Lee, Response Time Analysis Based Schedulability Test for Global EDF with Parallelization Options, 병렬화 옵션을 사용하는 Global EDF의 응답시간 분석 기반 스케줄가능성 테스트, in Korea Computer Congress 2016(KCC 2016), Jeju, June 2016.
· Dae Chul Park, Seunggon Kim, and Chang-Gun Lee, On-demand Synchronizing Cloud Structure through Linkage File, 링키지 파일을 통한 온디맨드 동기화 클라우드 구조, in Korea Computer Congress 2016(KCC 2016), Jeju, June 2016.
· Chan-Hee Choi, Alchan Kim, Kang-Wook Kim, and Chang-Gun Lee, Multiple GPU Scheduling for Real-time Systems, 실시간 시스템에서의 멀티 GPU 스케줄링 방법, in KIISE 42nd Winter Conference, Pyeongchang, pp. 3, Dec. 2015.
· Youngeun Cho, Jihwa Lee, and Chang-Gun Lee, An Improved Workload-Bound Global EDF Schedulability Test, 워크로드 계산 방식을 사용하는 GEDF 스케쥴가능성 테스트의 성능 개선, in KIISE 42nd Winter Conference, Pyeongchang, Dec. 2015.
· HwanSuk Choi, Oh-Chul Kwon, and and Chang-Gun Lee, The Measuring of Power Consumption on NANS Platform-based Mobile Devices, NANS 플랫폼 기반 모바일 장치에서의 소비전력 측정, in KIISE 42nd Winter Conference, Pyeongchang, Dec. 2015.
· Jihwa Lee, Kang-Wook Kim, Sangyoun Paik, and Chang-Gun Lee, Global EDF Scheduling for Periodic Task Model with Parallelization Options, 병렬화 옵션을 사용하는 주기적 태스크 모델의 GEDF 스케줄링, in KIISE 2015, Pyeongchang, Dec. 2015.
· Seunggon Kim, Kyoung-Soo We, and Chang-Gun Lee, Two-level Offset Technique for Verifying Reconstruction and Simulation, 재현 시뮬레이션 검증을 위한 이중 오프셋 기법, in KIISE 42nd Winter Conference, Pyeongchang, Dec. 2015.
· Hyejin Joo, Kyoung-Soo We, and Chang-Gun Lee, Analysis of the Idle State of a Processor for verifying in Real-Time Systems, 실시간 시스템 검증을 위한 프로세서 유휴 상태 분석, in KIISE 42nd Winter Conference, Pyeongchang, Gangwon-do, Dec. 2015.
· Sangyoun Paik, Kang-Wook Kim, Jihwa Lee, and Chang-Gun Lee, Design of Parameter Decision Genetic Algorithm for Multi-parameter Real-time Task Scheduling in Multiplecore System, 멀티코어 환경에서 여러 인자를 가지고 있는 실시간 태스크 스케줄링의 인자 결정 유전알고리즘 설계, in KIISE 42nd Winter Conference, Pyeongchang, Dec. 2015.
· Youngeun Cho and Chang-Gun Lee, A Fast Sparse Matrix Inversion by Matrix Compression, 행렬압축을 통한 희소행렬의 역행렬 연산 속도 향상 기법, in Korea Computer Congress 2015, Jeju, June 2015.
· Chan-Hee Choi and Chang-Gun Lee, A Study on Post-Processing of Voice Recognition Using Pronunciation Similarity of the Recognition Result and the Reference Data, 음성인식 결과와 참조데이터와의 발음 유사성을 이용한 음성인식 후처리에 관한 연구, in Korea Computer Congress 2015, Jeju, June 2015.
· Hyejin Joo and Chang-Gun Lee, Efficient Kernel Scheduling Technique for CGRA-based Multi-Core Architecture, 재구성 형 멀티코어 프로세서를 위한 효과적인 커널 스케줄링 기법, in Korea Computer Congress 2015(KCC 2015), Jeju, Korea, June 2015.
· HwanSuk Choi, JinSuk Park, and Chang-Gun Lee, Fast Big Integer Multiplication using GPGPU, GPGPU를 이용한 큰 정수 곱셈 고속화, in Korea Computer Congress 2015, Jeju, June 2015.
· Seunggon Kim, Kyoung-Soo We, and Chang-Gun Lee, HW timer-based Event-driven Scheduler on Embedded System, 임베디드 시스템에서의 하드웨어 타이머 기반 Event-driven 스케줄러 연구, in Korea Computer Congress 2015, Jeju, June 2015.
· Seunggon Kim and Chang-Gun Lee, System Architecture Design for On-the-Fly Dynamic Reprogramming on Embedded System, 임베디드 시스템의 온 더 플라이 동적 재프로그래밍을 위한 시스템 설계 방식, in KIISE 41st Winter Conference, Dec. 2014.
· Sangyoun Paik and Chang-Gun Lee, Simulation Parameter Design of Multicore Real-time Task Scheduling using Multiple Parallelization options, 멀티코어 환경에서 병렬화 옵션을 사용하는 실시간 태스크 스케줄링 기법을 검증하는 시뮬레이션 인자 설계, in KIISE 41st Winter Conference, Pyeongchang, Dec. 2014.
· Hangyoung Kim, Seunggon Kim, and and Chang-Gun Lee, Domotics Resource Sharing with Method Offloading, 스마트홈의 메소드 오프로딩을 통한 리소스 쉐어링, in KIISE 41st Winter Conference, Pyeongchang, Dec. 2014.
· Jihwa Lee, Jong-Chan Kim, and Chang-Gun Lee, Transformation Method for a Rate-Adaptive Task to a Periodic Task, 주기적응성 태스크의 주기적 태스크로의 변환 방법, in KIISE 41st Winter Conference, Dec. 2014.
· Oh-Chul Kwon, HwanSuk Choi, and Chang-Gun Lee, Control Methods for NANS Technology using Mobile Device, 모바일 장치를 이용한 NANS 기술의 제어 방법, in KIISE 41st Winter Conference, Pyeongchang, Dec. 2014.
· Kyoung-Soo We, Seunggon Kim, and Chang-Gun Lee, A Real-Time Simulation Technique Supporting Variable Execution Time Task Model for Cyber-Physical Systems, 사이버 물리 시스템을 위한 가변 수행 시간 태스크 모델 지원 실시간 시뮬레이션 기법, in KIISE 41st Winter Conference, Pyeongchang, Dec. 2014.
· Jihwa Lee, Kyoung-Soo We, and Chang-Gun Lee, A Scheduling Algorithm for Periodic Real-time Task With Hard And Soft Timing Constraints, 경성 데드라인과 연성 데드라인을 모두 가지는 주기적 태스크의 스케줄링, in KIISE 2013, Jeju, Nov. 2013.
· Jusung Kim and Chang-Gun Lee, Improving Performance And User Satisfaction By Method Offloading, 메소드 오프로딩을 통한 모바일 장치의 성능 및 사용자 만족도 향상, in KIISE 40th Fall Conference, Jeju, Nov. 2013.
· Kang-Wook Kim and Chang-Gun Lee, Indoor Wall Detection Algorithm Using Ultrasonic Reflection of Ultrasonic Sensor, 초음파 센서의 초음파 반사를 이용한 실내 벽 탐색 기법, in KIISE 40th Fall Conference, Jeju, pp. 1214-1216, Nov. 2013.
· Kyoung-Soo We, Jong-Chan Kim, Yuyeon Oh, and Chang-Gun Lee, Efficient Real-Time Simulation Approach for Distributed Computing Systems, 분산 컴퓨팅 시스템을 위한 효율적인 실시간 시뮬레이션 기법, in KIISE 40th Fall Conference, Jeju, Nov. 2013.
· Oh-Chul Kwon, Jusung Kim, and Chang-Gun Lee, The Development of Meta Mobile Platform for Multi-Device Environment, 다중 기기 환경을 위한 메타 모바일 플랫폼의 개발, in KIISE 40th Fall Conference, Jeju, Nov. 2013.
· Yuyeon Oh, Kyoung-Soo We, and Chang-Gun Lee, Real-time vehicle dynamics simulation system with CarSim-RT, CarSim-RT 를 이용한 실시간 차량 동역학 시뮬레이션 시스템, in KIISE 40th Fall Conference, Jeju, Nov. 2013.
· Oh-Chul Kwon, Chiyoung Oh, and Chang-Gun Lee, The Development of Webpage Pre-loading Technology for Zero Latency Response on Cloud Mobile Web Browser, 클라우드 모바일 웹 브라우저 상에서 제로 레이턴시 응답을 위한 웹페이지 프리로딩 기술의 개발, in Korea Computer Congress 2012, June 2012.
· Chiyoung Oh and Chang-Gun Lee, Methodology of Graphical Editor Plug-in Development for Eclipse based Integrated Tool, Eclipse의 기반의 통합 Tool을 위한 Graphical Editor Plug-in 개발 방법, in Korea Computer Congress 2012, June 2012.
· Yuyeon Oh and Chang-Gun Lee, Calculating an inverse of a 4x4 matrix using Neon, Neon 을 사용한 4x4 행렬의 역행렬 연산, in Korea Computer Congress 2012, June 2012.
· Jihye Kwon and Chang-Gun Lee, An Approach to Optimize Initial Offsets of Periodic Tasks in Real-Time Systems, 실시간 시스템의 주기적 태스크의 최적 오프셋 탐색, in Korea Computer Congress 2012, June 2012.
· Oh-Chul Kwon, Jusung Kim, and Chang-Gun Lee, Smartphone-Centric N-Screen Technology, in Korean Society of Broadcast Engineers, Jan. 2012.
· Sangmin Jeong, Kyoung-Soo We, and Chang-Gun Lee, Admission Control for Fault Recovery in CPS, in KIISE 38th Fall Conference, Vol. 38, Issue 2, pp. 269-272, Nov. 2011.
· Jae-Hwa Han, Kyoung-Soo We, and Chang-Gun Lee, Proposal of Real-Time Simulator for Multiple ECUs and CAN Environment, in KIISE 38th Fall Conference, Vol. 38, Issue 2, pp. 143-146, Nov. 2011.
· Duhee Lee, Chang-Gun Lee, and Kanghee Kim, Paging Replacement Policy for Multi Task based Real-time Application considering Data pages, 데이터 페이지를 고려한 실시간 멀티 태스크 환경에서의 페이지 교체정책, in Korea Computer Congress 2010, July 2010.
· Oh-Chul Kwon, Jusung Kim, and Chang-Gun Lee, The Development of Future Adaptive Device Interfacing Technology for Mobile Device, 모바일 장치를 위한 미래 적응형 장치 인터페이싱 기술의 개발, in Korea Computer Congress 2010, July 2010.
· Jae-Hwa Han, Jong-Sic Choi, Won-Geun Hwang, and Chang-Gun Lee, Design of an searching system using Coord, the open-source distributed computing platform, 오픈소스 분산처리 플랫폼 Coord를 활용한 검색 시스템의 설계, in Korea Computer Congress 2010, July 2010.
· Kang-Wook Kim, Myung-Gon Park, and Chang-Gun Lee, Real-time Indoor Location Tracking using Reflection of Ultrasonic, 초음파신호의 반사를 고려한 실시간 실내 위치 추적 기법, in Korea Computer Congress 2010, July 2010.
· Myung-Gon Park, Kang-Wook Kim, and Chang-Gun Lee, A Study on Optimizing IEEE 802.15.4 Cluster-Tree Topology for Real-Time Wireless Sensor Networks, 실시간 무선 센서 네트워크에서 IEEE 802.15.4 클러스터 트리 기반의 토폴로지 최적화에 관한 연구, in Korea Computer Congress 2010, July 2010.
· Kang-Wook Kim, Myung-Gon Park, Chang-Gun Lee, and Eun Yong Ha, A Combined Scheduling of Sensing and Communication for Efficient Indoor Location Tracking in Real-Time Ubiquitous Systems, 실시간 유비쿼터스 시스템에서 효율적인 실내 위치추적을 위한 센싱 및 통신 통합 스케줄링 기법, in KIISE 36th Fall Conference, Nov. 2009.
· Oh-Chul Kwon, Jusung Kim, Chang-Gun Lee, and Eun Yong Ha, The Development of Automatic User Interface Transform Technology on Android Mobile Platform, 안드로이드 모바일 플랫폼에서의 사용자 인터페이스 자동 전환 기술의 개발, in KIISE 36th Fall Conference, Nov. 2009.
· Oh-Chul Kwon, Jusung Kim, and Chang-Gun Lee, Development of Future Adaptive Device Interface for Automatic Mobile UI Switching technology, in Korea Institute of Next Generation Computing Fall Conference 2009, Oct. 2009.
· Kyoung-Soo We, Soo-Hwan Park, Chang-Gun Lee, and Eun-Young Ha, Robot Task Scheduling Strategy with Shifting Deadlines, 유동 데드라인을 지닌 로봇 태스크 스케쥴링 전략, in KCC 2009, July 2009.
· Duhee Lee, Chang-Gun Lee, and Ha Eun Yong, Paging Replacement Policy for Multi Task based Real-time Application, 멀티 태스크 환경에서의 페이지 교체 정책, in KCC 2009, July 2009.
· Kwangyoon Cho, Chang-Gun Lee, and Eun-Yong Ha, Extended Worst Case Execution Time Analysis Method based on NAND Flash Memory as a Code Storage, 코드 저장소로서의 NAND 플래시 메모리로 확장 적용된 최악수행시간 분석기법과 그 응용 가능성, in KCC 2009, July 2009.
· Soo-Hwan Park, Jong-Chan Kim, and Chang-Gun Lee, Time Synchronization and QoS support for Robot SW Platform, in IEEK Fall Conference 2008, Nov. 2008.
· Duhee Lee, Jong-Chan Kim, and Chang-Gun Lee, Paging Replacement Policy for Real-time Application, in KIISE 35th Fall Conference, Oct. 2008.
· J.-E. Kim, M.-K. Yoon, J.-H. Han, Chang-Gun Lee, and E.-Y. Ha, Optimal Sensor Placement method for Construction of Ubiquitous Sensing infra, 유비쿼터스 센싱 인프라 구축을 위한 최적센서 배치 방법, in KCC 2008, June 2008.
· Jong-Chan Kim, Chang-Gun Lee, and Eun-Yong Ha, Page Replacement Policy for Virtual-memory based Real-time Embedded Systems, 가상 메모리 기반의 실시간 임베디드 시스템의 페이지 교체 정책에 대한 연구, in KCC 2008, June 2008.
· Soo-Hwan Park, Chang-Gun Lee, and Eun-Young Ha, A Clock Synchronization protocol to Enhance the Clock Accuracy in Distributed Component System, 분산 컴포넌트 시스템에서 동기화된 시간의 정밀도를 높일 수 있는 기법, in KCC 2008, June 2008.


 Patents

· Jihwa Lee, Kang-Wook Kim, Kyong-Soo We, and Chang-Gun Lee, 혈중알코올농도 결정방법과 이를 수행하는 사용자 단말 및 이를 기록한 기록매체, No. 10-2015-0184269, Nov. 2016.
· Oh-Chul Kwon, Jihye Kwon, Kang-Wook Kim, Chang-Gun Lee, and Sung-Woo Park, 컴퓨터 실행 가능한 N-스크린 서비스 제공 방법, 이를 수행하는 서비스 제공 장치 및 이를 기록한 기록매체, No. 10-1590398, Jan. 2016.
· Chang-Gun Lee, Kyoung-Soo We, and Hangyoung Kim, 범용 음성인식 제어 장치 및 제어 방법, No. 10-1579292, Dec. 2015.
· Oh-Chul Kwon and Chang-Gun Lee, 멀티 디스플레이 제어 방법, 이를 수행하는 멀티 디스플레 이 제어 장치 및 이를 저장하는 기록매체, No. 10-1559375, Oct. 2015.
· Oh-Chul Kwon and Chang-Gun Lee, 컴퓨터 실행 가능한 멀티 디스플레이 제공 방법 이를 수행하는 멀티 디스플레이 제공 장치 및 이를 저장하는 기록매체, No. 10-1525882, May 2015.
· Jusung Kim, Oh-Chul Kwon, and Chang-Gun Lee, 어플리케이션의 오프로딩 방법 및 이를 위한 시스템, No. 10-1449238, Oct. 2014.
· Jusung Kim, Oh-Chul Kwon, and Chang-Gun Lee, 외부 하드웨어를 사용하기 위한 모바일 플랫폼 및 이를 이용한 방법, No. 10-1393153, Apr. 2014.
· Oh-Chul Kwon, Kang-Wook Kim, Kyoung-Soo We, Duhee Lee, Jong-Chan Kim, Jusung Kim, Jae-Hwa Han, Sangmin Jeong, and Chang-Gun Lee, 다양한 입력장치를 수용할 수 있는 모바일 디바이스 및 그 방법, No. 10-1361335, Feb. 2014.
· Chang-Gun Lee, Oh-Chul Kwon, Kang-Wook Kim, Kyoung-Soo We, Jae-Hwa Han, Myung-Gon Park, Duhee Lee, Jong-Chan Kim, Jusung Kim, and Sangmin Jeong, 문자 입력 방법 및 장치, No. 10-1296145, Aug. 2013.
· Jusung Kim, Oh-Chul Kwon, and Chang-Gun Lee, 입출력모듈 및 연산모듈의 최적 오프로딩 방법 및 이를 이용한 시스템, No. 10-2012-0145499, Dec. 2012.
· Jusung Kim, Oh-Chul Kwon, and Chang-Gun Lee, 다중 모바일 디바이스의 통합 서비스를 위한 메타 모바일 플랫폼, No. 10-2012-0145495, Dec. 2012.
· Chang-Gun Lee, Oh-Chul Kwon, Kang-Wook Kim, Kyoung-Soo We, Jae-Hwa Han, Myung-Gon Park, Duhee Lee, and Jong-Chan Kim, 해상도 전환을 위한 스마트폰의 플랫폼, No. 10-1209144, Nov. 2012.
· Chang-Gun Lee, Oh-Chul Kwon, Kang-Wook Kim, Kyoung-Soo We, Jae-Hwa Han, Myung-Gon Park, Duhee Lee, and Jong-Chan Kim, 소형전자장치에서의 문자 입력 장치 및 방법, No. 10-1141728, Apr. 2012.
· Oh-Chul Kwon, Kang-Wook Kim, Kyoung-Soo We, Duhee Lee, Jong-Chan Kim, Jusung Kim, Jae-Hwa Han, Sangmin Jeong, and Chang-Gun Lee, 모바일 디바이스에서 외부 디스플레이 장치의 해상도에 맞는 화면을 제공하는 방법, No. 10-2011-0128494, Dec. 2011.
· Chang-Gun Lee, Oh-Chul Kwon, Kang-Wook Kim, Kyoung-Soo We, Jae-Hwa Han, Myung-Gon Park, Duhee Lee, Jong-Chan Kim, Jusung Kim, and Sangmin Jeong, 문자 입력 방법 및 장치, No. PCT/KR2011/008182, Oct. 2011.
· Chang-Gun Lee, Jung-Eun Kim, and Junghee Han, 쓰리-커버리지를 위한 센서 배치 시스템, No. 10-1032998, Apr. 2011.
· Chang-Gun Lee, Jong-Chan Kim, and Duhee Lee, 메모리 구조에 따른 메모리 관리 장치, No. 10-0987332, Oct. 2010.


 Awards

· Wonseok Lee, Kyoung-Soo We, Seunggon Kim, and Chang-Gun Lee, 우수발표논문상, in Korea Computer Congress (KCC) 2017, Jeju, June 2017.
· Chan-Hee Choi, Kang-Wook Kim, and Chang-Gun Lee, 우수발표논문상, in KIISE 43rd Winter Conference, Jan. 2017.
· Oh-Chul Kwon, HwanSuk Choi, Dae Chul Park, and Chang-Gun Lee, 우수데모작품상, in Korea Computer Congress 2016, Jeju, Republic of Korea, June 2016.
· HwanSuk Choi, Oh-Chul Kwon, and Chang-Gun Lee, 우수발표논문상, in KIISE 42nd Winter Conference, Pyeongchang, Republic of Korea, Dec. 2015.
· Jihwa Lee, Kang-Wook Kim, Sangyoun Paik, and Chang-Gun Lee, Best Paper Award, in KIISE 42nd Winter Conference, Pyeongchang, Dec. 2015.
· Hyejin Joo and Chang-Gun Lee, 우수발표논문상, in Korea Computer Congress 2015(KCC2015), Jeju, Republic of Korea, June 2015.
· Oh-Chul Kwon, HwanSuk Choi, and Chang-Gun Lee, 우수발표논문상, in KIISE 41st Winter Conference, Pyeongchang, Republic of Korea, Dec. 2014.
· Kang-Wook Kim and Chang-Gun Lee, 우수발표논문상, in KIISE 40th Fall Conference, Dec. 2013.
· Jusung Kim and Chang-Gun Lee, 우수발표논문상, in KIISE 40th Fall Conference, Dec. 2013.
· Kyoung-Soo We, Jong-Chan Kim, Yuyeon Oh, Sangmin Jeong, and Chang-Gun Lee, Best Demo Award, in International Conference on Cyber-Physical Systems (ICCPS 2013), Philadelphia, USA, Apr. 2013.
· Yuyeon Oh and Chang-Gun Lee, 우수발표논문상, in Korea Computer Congress 2012, July 2012.
· Jihye Kwon and Chang-Gun Lee, Best Paper Award, in Korea Computer Congress 2012, Jeju, Republic of Korea, June 2012.
· Chang-Gun Lee, MC Company Award, in LG Mobile Communication Company, Seoul, Republic of Korea, Jan. 2012.
· Oh-Chul Kwon, Jusung Kim, Chang-Gun Lee, Hea-Jung Ryu, and Chil-Woo Lee, 2nd Prize, in The 1st Android Competition in Embedded Systems Week (ESWEEK'11), Taipei, Taiwan, Oct. 2011.