Soo-hyeong Lee

Work Address
Multimedia Communications Laboratory,
Dept. of Computer Science and Engineering,
Seoul National University,
Shinlim-dong, Kwanak-gu, Seoul, 151-742, Korea

Phone: +82-2-874-0286
Fax: +82-2-872-2045


TCP Congestion Control, DiffServ, Large Bandwidth Delay


I have been working on the modeling and analysis of TCP congestion control. Preliminary results are obtained about per-flow queue build-up, per-flow queue service rate, and queueing delay using deterministic fluid-flow rate-based model. The results will be applied to DiffServ. Draft papers will be available shortly. I hope to work on this topic or related matters during my visit to UIUC.


PhD Candidate in Computer Science and Engineering
Seoul National University, Seoul, Korea
PhD Thesis: Analysis of TCP Congestion Control and its Application to DiffServ
Advisor: Dr. Yanghee Choi

MS in Computer Engineering, February 1996
Seoul National University, Seoul, Korea
Master Thesis:
A Delay Analysis of Self-similar Input Traffic in the Generalized Processor Sharing Network
Advisor: Dr. Yanghee Choi

BS in Computer Engineering, February 1994
Seoul National University, Seoul, Korea



Programming Languages: C, C++, Java, HTML, VRML, Motif
Operating Systems: UNIX, Windows 95/98, MS-DOS
Software Packages: Most of popular X applications, MS Office, LaTeX, Gnu applications
Networking Software: BSD4.4 TCP/IP code inside, NS Simulator


Advanced Computer Networks, Computer Communications and Networks, Probability and Random Processes, Queueing Theory, Advanced Internet Research, Computer System Modeling, Data Transmission in Computer Communications


  • Soo-hyeong Lee, Yanghee Choi, "Departure Processes of Bernoulli Inputs for Fixed-Rate Processor Sharing," KISS(Korean Information Science Society) conference, Oct. '95
  • W. Yoon, Soo-hyeong Lee, Yanghee Choi, "MPEG Video Transmission Techniques," KISS conference, Oct. '97
  • S. Kim, D. Ko, Soo-hyeong Lee, et al., "Data Scheduling and Cache Management for Data Broadcasting," KISS conference, Oct. '97
  • Soo-hyeong Lee, " Data Broadcast Protocol and Downloadable Application Format for Intelligent TV," KRNET conference, July '98
  • M. Kim, Soo-hyeong Lee et al., "Set-top box software modules for Data Carousel," KISS conference, October '98
  • M. Kim, Soo-hyeong Lee et al., "Implementation of Object Carousel," KISS conference, Apr. '99


Dr. Yanghee Choi (Advisor)
Dept. of Computer Science and Engineering,
Seoul National University,
Shinlim-dong Kwanak-gu,
Seoul, 151-742, Korea
Tel: +82-2-880-7303