Curriculum Vitae. Yongho Seok

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1 Curriculum Vitae Yongho Seok Multimedia & Mobile Communications Lab. Seoul National University ENG4190 Seoul , Korea Phone: Fax.: CURRENT POSITION 3/ Ph.D. candidate of School of Computer Science and Engineering, Seoul National University EDUCATION M.S. in Computer Engineering, 2002, Seoul National University, Seoul, Korea. B.S. in Computer Engineering, 2000, Handong University, Pohang, Korea. PROJECT EXPERIENCES Measurement and analysis Infra. system development of WLAN user traffic in a campus network sponsored by Korea Telecom ( ) Measurement Infrastructure for Korean-French STAR Cooperation sponsored by KISTEP ( ) A Study on Traffic Engineering for KOREN/APII-Testbed sponsored by NCA ( ) Traffic Modeling and High Performance Supporting in Wireless LANs sponsored by Korea Telecom ( ) Construction of MPLS Testbed on KOREN and Developement of MPLS application service sponsored by NCA ( ) HDTV over Next Generation Internet sponsored by NCA ( ) Multipath Traffic Engineering in MPLS Networks sponsored by ETRI ( ) Packet Scheduling Algorithm Development for Real-time Streams sponsored by ETRI ( ) Multicast Routing Algorithm(Packet Scheduling) in Mobile/Wireless Networks sponsored by ETRI ( ) Study on Multimedia Wireless Internet Technology sponsored by KISTEP ( ) PROFESSIONAL SERVICES 03/2000- Research Assistant, Multimedia and Communication Lab., Seoul National

2 University 02/ /2004 Part-Time Lecturer (Computer Networks), Samsung Electronics 01/ /2003 Internet Traffic Measurement Working Group Chair, Advanced Network Forum in Korea 03/ /2002 Network Engineer, High-speed Testbed Network and KOREN(Korea Advanced Research and Education Network) in Seoul National University 03/ /2000 Teaching Assistant (Electronic Circuit), Seoul National University CURRENT RESEARCH INTEREST Quality of Service in Wireless LANs Multimedia Streaming in Wireless LANs Multicast Protocol in Mesh Networks Multi-path Routing in Wireless Sensor Networks Active Measurement in High-speed Networks PUBLICATIONS Journal Publications Yongho Seok, Yanghee Choi, Taekyoung Kwon, and Jean-Marie BONNIN, Temporal Fairness Guarantee in Multi-rate Wireless LANs for Per-Flow Protection, to appear in ACM/Kluwer Wireless Networks. Yongho Seok, Nakjung Choi and Yanghee Choi, Network Interface Selection Algorithm on Vertical Handoff between 3G Network and WLANs, to appear in Journal of KISS. Haeyong Kim, Yongho Seok, Nakjung Choi, Yanghee Choi, and Taekyoung Kwon, Optimal Multi-sink Positioning and Energy-efficient Routing in Wireless Sensor Networks, Lecture Notes in Computer Science (LNCS), Springer-Verlag, Number 3391, (one of two best paper awards in ICOIN 2005) Youngseok Lee, Yongho Seok, and Yanghee Choi, Traffic Engineering with Constrained Multipath Routing in MPLS Networks, IEICE Transactions on Communications, vol. e87-b, no.5, pp , May Yongho Seok and Yanghee Choi, Efficient Multicast Supporting in Multi-rate Wireless Local Area Networks, Lecture Notes in Computer Science (LNCS), Springer-Verlag, Number 2662, Yongho Seok, Youngseok Lee, Yanghee Choi, and Changhoon Kim, Dynamic Constrained Traffic Engineering for Multicast Routing, Lecture Notes in Computer Science (LNCS), Springer-Verlag, Number 2343, Conference/Workshop Publications

3 Jiho Ryu, Yongho Seok, Yanghee Choi, Taekyoung Kwon and Jean-Marie BONNIN, S-EDCF: EDCF based on SuperSlot and Pseudo Collision, accepted to ACM MobiCom 2005 Student Poster Session, Cologne, Germany, August/September, Jiho Ryu, Nakjung Choi, Yongho Seok, Taekyoung Kwon and Yanghee Choi, Improving TCP Uploading Throughput in IEEE Wireless LANs, KICS Conference Summer, Yongpyong, June/July, Nakjung Choi, Yongho Seok, Yanghee Choi, Gowoon Lee, Sungmann Kim and Hanwook Jung, P-DCF: Enhanced Backoff Scheme for the IEEE DCF, IEEE VTC 2005-Spring, Stockholm, Sweden, May, Nakjung Choi, C. K. Toh, Yongho Seok, Dongkyun Kim, and Yanghee Choi, Random and Linear Address Allocation for Mobile Ad Hoc Networks, IEEE WCNC 2005, New Orleans, LA, USA, March, Nakjung Choi, Yongsum Nam, Yongho Seok, Yanghee Choi, Gowoon Lee, Sungmann Kim and Hanwook Jung, Analysis of Campus User Pattern in NESPOT Wireless LANs, IEEE ICACT 2005, Phoenix Park, Korea, Feb, Minji Nam, Nakjung Choi, Yongho Seok, and Yanghee Choi, WISE: Energy-Efficient Interface Selection on Vertical Handoff between 3G Networks and WLANs, IEEE PIMRC 2004, Barcelona, Spain, September, Haeyong Kim, Yongho Seok, and Yanghee Choi, Secure Multimedia Transmission in IPv6 Wireless Networks, 23 rd IEEE International Performance, Computing, and Communications Conference (IPCCC), Phoenix, Arizona, USA, April, (Refereed Poster) Yongho Seok, Youngseok Lee, Nakjung Choi, and Yanghee Choi, Fault-tolerant Multipath Traffic Engineering for MPLS Networks, IASTED International Conference on Communications, Internet, and Information Technology, Scottsdale, Arizona, USA, November, Yongho Seok, Youngsam Park, and Yanghee Choi, Vertical and Horizontal Flow Controls for TCP Optimization in the Mobile Ad Hoc Networks, IEEE VTC 2003-Fall, Orlando, Florida, USA, October, Minji Nam, Nakjung Choi, Youngsam Park, Yongho Seok, and Yanghee Choi, "Vertical Handoff Algorithm between IEEE WLAN and 3G Network," KISS Conference, Seoul, Korea, October, Nakjung Choi, Yongho Seok, and Yanghee Choi, Multi-channel MAC Protocol for Mobile Ad Hoc Networks, IEEE VTC 2003-Fall, Orlando, Florida, USA, October, Yongho Seok, Nakjung Choi, Yanghee Choi, and Jihong Kim, Application-Driven Network Capacity Adaptation for Energy Efficient Ad-Hoc Networks, IEEE PIMRC 2003, Beijing, China, September, Yongho Seok, Jaewoo Park, and Yanghee Choi, Queue Management Algorithm for Multi-rate Wireless Local Area Networks, IEEE PIMRC 2003, Beijing, China, September, Yongho Seok, Jaewoo Park, and Yanghee Choi, Multi-rate Aware Routing Protocol for Mobile Ad Hoc Networks, IEEE VTC 2003-Spring, Jeju, Korea, April, 2003.

4 Yongho Seok, Youngseok Lee, Yanghee Choi, and Changhoon Kim, Explicit Multicast Routing Algorithms for Constrained Traffic Engineering, IEEE Symposium on Computers and Communications(ISCC), Taormina, Italy, July, Youngseok Lee, Yongho Seok, Yanghee Choi, and Changhoon Kim, A Constrained Multipath Traffic Engineering Scheme for MPLS Networks, IEEE ICC 2002, New York, May, Yongho Seok, Youngseok Lee, Yanghee Choi, and Changhoon Kim, Dynamic Constrained Multipath Routing for MPLS Networks, IEEE ICCCN 2001, Phoenix, Arizona, USA, October, Yongho Seok, Youngseok Lee, Yanghee Choi, and Changhoon Kim, Traffic Engineering in MPLS Network with Redundant Egress LSR, KICS Conference, Jeju, Korea, July, Yongho Seok, Yung Yi, Yanghee Choi, and Hyun Park, Packet Scheduling For Real-Time Video Transmission, KISS Conference, Suwon, Korea, April, Yongho Seok, Yung Yi, Yanghee Choi, and Hyun Park, System Architecture For Real-Time Video Service, KISS Conference, Suwon, Korea, April, Yongho Seok, Yung Yi, Yanghee Choi, and Hyun Park, Priority-based Buffer Management Schemes For Real-Time Video Transmission, JCCI Conference, Muju, Korea, April, Yung Yi, Yongho Seok, Taekyoung Kwon, Yanghee Choi, and Junseok Park, W2F2Q : Packet Fair Queuing in Wireless Packet Network, ACM WoWMoM 2000, Boston, Massachusetts, USA, August, Patents Hanwook Jung, Sungmann Kim, Yanghee Choi, Yongho Seok, Jinsoo Park, Sungmin Baek, Nakung Choi and Haeyong Kim, Mobile terminal, the system and method to trace network characteristic from mobile terminals, pending Korea , May, 12, Yongho Seok, Kyungae Kim, and Yanghee Chol, "Queue Management Algorithm for Multi-rate Wireless Local Area Networks, pending Korea , May, Youngseok Lee, Yongho Seok, Yanghee Choi, Changhoon Kim, and Taesoo Chung, "A Constrained Multipath Routing Method," pending US , March, Changhoon Kim, Youngseok Lee, Yongho Seok, Yanghee Choi, and Taesoo Chung, "A Constrained Multipath Routing Method," pending Korea , November, TECHNICAL SKILLS Language : Korean, English Operating System : Expertise at the user and system manager level for FreeBSD, Linux, MS- Windows Programming : Extensive programming experience with C/C++(Windows, Unix, Visual C++), Assembler (8086), VHDL, Unix system and network, LaTex Simulation : Extensive simulate package experience include NS-2 and CPLEX(optimization tool) Hardware : Hardware experience include ATM switch, CISCO router, PC-based router using

5 Linux and FreeBSD HORNORS 03/ /2005 Research Scholarship of Brain Korea 21, Ministry of Information and Communication 09/ /2004 Full Scholarship, Seoul National University 03/ /2000 Full Scholarship, Seoul National University SERVICE Reviewer : Wiley Journal of Wireless Communications and Mobile Computing (WCMC), Inderscience International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC), IEE Proceedings Communications, IEEE Communication Letters (CL), IEEE Network Magazine Reviewer : IEEE ICC 2005, IEEE VTC 2005-Fall, ICOIN 2005, IEEE ICON 2004, IEEE VTC Spring, ICOIN 2003, IEEE Globecom 2003, IEEE Globecom 2002 REFERENCES Professor Yanghee Choi School of Computer Science and Engineering Seoul National University Seoul , Korea Phone: yhchoi@snu.ac.kr Professor Jean-Marie BONNIN Network and Multimedia Department ENST Bretagne 2, rue de la chataigneraie CS Cesson Sevigne Cedex, France Phone: Jean-Marie.BONNIN@irisa.fr Additional references available upon request.

Optimal Multi-sink Positioning and Energy-efficient Routing in Wireless Sensor Networks

Optimal Multi-sink Positioning and Energy-efficient Routing in Wireless Sensor Networks Haeyong Kim, Yongho Seok, Nakjung Choi, Yanghee Choi, and Taekyoung Kwon School of Computer Science and Engineering