SE
GI
HONG
Home Resume
Projects
Publications
Courses Favorites
Contact Information
- EE Department
1300 S.W. Mudd
500 West 120 th Street
New York, NY 10027
Email : segihong@cs.columbia.edu
Summary
Ph.D. student in
Electrical Engineering/Computer Science with strong research
experience in implementation, simulation and analysis of networks.
- Experience in research and development of networking
solutions, protocols and applications.
- Superior programming skills using C, C++ and Java on
Windows, Linux and Mac platforms.
Research Interests
Computer networks with special emphasis on distributed wireless mobile networks, signaling
protocol architecture, and secure network architecture.
- Opportunistic wireless networks, including delay and disruption-tolerant networking (DTN).
- Distributed P2P service and information exchange in wireless mobile environments.
- Signaling protocol.
- Secure network architecture.
Education
08/2011 (Expected)
Columbia University,
New York, NY
Ph.D. Candidate, Electrical
Engineering.
Advisor: Prof. Henning Schulzrinne
05/2003
University of
Southern California, LA, CA.
M.S., Electrical Engineering.
02/2000
Sogang University,
Seoul, Korea
B.S., Electronic Engineering.
Research Experience
09/2009 ~ Present
ICOW (Internet Cache on Wheels) Project
Opportunistic wireless networks
- Defined network resource limitation and allocation problems of opportunistic networks in public transit systems.
- Proposed a system-level solution to increase content availability and system usability.
- Developed system architecutre, built prototype, evaluated performance and analyzed the system.
09/2007 ~ 05/2009
PBS (Permission-Based Sending) Project
Secure networking architecutre, signaling protocol
- Proposed a signaling architecture for network traffic
authorization, aiming to prevent denial-of-service (DoS) attacks and
other forms of unauthorized traffic.
- Exploited control plane signaling protocol architecture and secure authorization
(permission).
- Implemented this project using netfilter, Click modular router and NSIS (FreeNSIS).
01/2006
~ 05/2007
7DS (Seven Degrees) Project
Distributed wireless networks
Measurements of Multicast Service Discovery
- Measured and analyzed multicast service discovery traffic in a campus wireless network.
- Analyzed
different service discovery delay models in terms of packet overhead
and service discovery delay under different network sizes and
mobilities.
Accerelating Service Discovery
- Proposed and algorithm to accelerate service discvory in wireless Zero
Configuration Networking (Zeroconf) mobile ad hoc networks.
- Allowed users to discover network topology changes and new services in real-time while minimizing network overhead.
- Implemented and tested this project on
Linux, using C.
P2P Information Exchange
- Worked on data exchanges on wireless mobile ad hoc networks
by
providing an application-level set of protocol services that will
enable exchange of information between peer devices.
- Implemented and tested this project on Linux using
C, and also implemented and tested
it
using LEAF (Linux Embedded Application Firewall), an embedded Linux
distribution, on a WRAP (Wireless
Router Application Platform).
01/2004
~ 12/2005
The Armstrong Project
Wireless sensor networks
- Designed a localized and sink-oriented MAC
protocol in wireless sensor
networks, focusing on congestion control and aggregation of
information.
- Wrote a C++ code of this protocol and tested it on
NS-2
simulator.
Job
Experience
05/2009
~ 08/2009
InterDigital Communications, LLC, Melville, NY
Summer
Intern
- Security issues on authentication, authorization, accounting, and privacy in hybrid networks.
- Categorized security architectures in hybrid networks and raised security problems.
06/2007
~ 08/2007
Bell Labs at Alcatel-Lucent, Murray Hill, NJ
Summer
Intern
- Evaluated the control message overhead created by the DHT-based P2P system under various
churn rates and networking sizes.
- Simulated this project using OMNeT++ and OverSim.
06/2002 ~ 07/2002
Samsung Networks (currently Samsung SDS) Seoul, Korea
Summer Intern
- Evaluated the system architecture of Mobile IP.
09/2005
~ 12/2005
Columbia University, New York, NY
Teaching Assistant
-
ELEN E4710 An Introduction to Network Engineering
12/1993 ~ 03/1996
Korean Army,
Korea
Korean Military Service
-
Participated in the Signal Corps as a signal corpsman
Publication
[1] Se Gi hong, SungHoon Seo, Henning Schulzrinne and Prabhakar Chitrapu, "Internet Access in Public Transit Systems," In preparation for submission to journal.
[2] Se Gi Hong, Henning Schulzrinne and Swen Weiland, "Signaling architecture for network traffic authorization," In Preparation for submission to jounal.
[3] Se Gi Hong, Henning Schulzrinne and Swen Weiland, "Signaling architecture for network traffic authorization," In Proceeding of IEEE
Conference on Global Communications, Miami, FL, Dec. 2010.
[4] Se Gi Hong and
Henning Schulzrinne, “PBS NSLP: Network Traffic Authorization,” IETF, Internet Draft, July 2010, work in progress.
[5] Se Gi Hong, Volker Hilt, and
Henning Schulzrinne, “Evaluation
of Control Message Overhead of DHT-based P2P System,” Bell Labs Technical Journal (BLTJ), Vol. 13, No. 3.
[6] Se
Gi Hong,
Suman Srinivasan and
Henning Schulzrinne, “Measurements of Multicast Service Discovery in a Campus Wirless Network”, In Proceeding of IEEE
Conference on Global Communications, Honolulu, Hawaii, Nov. 2009.
[7] Se Gi Hong,
Suman Srinivasan and
Henning Schulzrinne, “Accelerating
Service Discovery in Ad-hoc Zero
Configuration Networking,” In Proceeding of IEEE
Conference on Global Communications, Washington D.C., Nov. 2007. [pdf]
[8]
Suman Srinivasan, Arezu Moghadam,
Se Gi Hong and Henning Schulzrinne, “7DS
- Node Cooperation and Information
Exchange in Mostly Disconnected Networks,” In
Proceeding of IEEE International
Conference on Communications, Glasgow, Scotland, June 24 -
28, 2007. [pdf]
[9] Gahng-Seop Ahn, Emiliano
Miluzzo,
Andrew T. Campbell, Se Gi Hong and Francesca Cuomo, "A
Localized, Sink-Oriented MAC For Mitigating the Funneling Effect in Sensor Networks," Elsevier Computer Networks, under review.
[10] Gahng-Seop Ahn, Emiliano
Miluzzo,
Andrew T. Campbell, Se Gi Hong and Francesca Cuomo, "Funneling-MAC: A
Localized, Sink-Oriented MAC For Boosting Fidelity in Sensor Networks," In
Proc. of Fourth ACM Conference on Embedded Networked Sensor Systems
(SenSys
2006), Boulder, Colorado, USA, Nov. 1-3, 2006. [pdf]