2011.02 ~ Current

Technical Research Personnel, POSTECH Information Research Laboratories, Pohang, Korea.

2008.03 ~ Current

Ph.D. student, Department of Computer Science and Engineering, POSTECH, Pohang, Korea. (GPA: 4.0/4.3)

2006.09 ~ 2007.12

Researcher Internship, Embedded System Software Lab, Hongik University, Seoul, Korea.

2004.03 ~ 2008.02

B.S., Department of Computer Engineering, Hongik University, Seoul, Korea. (GPA: 4.3/4.5, Summa Cum Laude)

International Journals

Oh Chan Kwon and Hwangjun Song, "A Hybrid Push-Pull Delivery Mechanism for Video Streaming Over Mesh-based P2P Networks" (In preparation).

Oh Chan Kwon and Hwangjun Song, "Adaptive tree-based P2P video streaming multicast system under high peer-churn rate," submitted for the publication (Under review).

Oh Chan Kwon, Hyung Rai Oh, Zae-Kwun Lee, GyeongCheol Lee, Youngho Park, and Hwangjun Song, "Entire network load-aware cooperative routing algorithm for video streaming application over mobile ad hoc network," Wireless Communications and Mobile Computing (Online published). [pdf]

International Conferences

Oh Chan Kwon, Hyung Rai Oh, GyeongCheol Lee, and Hwangjun Song, “QoS routing algorithm Consuming Minimum Overall Timeslots for Video Streaming over MANET," IEEE International Symposium on Communications & Information Technologies (ISCIT) 2011. [pdf]

Oh Chan Kwon, Hwangjun Song, and Tai-Won Um, "A robust P2P video multicast streaming system under high peer-churn rate," IEEE International Conference on Communication Technologies (ICCT) 2011. [pdf]

Oh Chan Kwon, Hwangjun Song, and Tai-Won Um, "Overlay multicast tree construction algorithm for stable multimedia service," IEEE Consumer Communications & Networking Conference (CCNC) 2011 Workshop on Digital Entertainment, Networked Virtual Environments, and Creative Technology. [pdf]

S. Min, Y. Choi, N. Kim, W. Kim, O. Kwon, B. Kim, J. Lee, D. Kim, J. Kim, Hwangjun Song, "Implementation of a programmable service composition network using NetFPGA-based OpenFlow switches," 1st Asia NetFPGA Developers Workshop, 2010. [pdf]

Domestic Journals

Oh Chan Kwon, Changwoo Yoon, Hwangjun Song, "A P2P Overlay Multicast Tree Construction Algorithm Considering Peer Stability and Delay" The Journal of Korea Information and Communications Society, Vol. 36, No.4, pp. 305-313, 2011. [pdf]

Domestic Conferences

Oh Chan Kwon, Hyung Rai Oh, GyeongCheol Lee, Hwangjun Song, "Entire Network Load-aware Cooperative Routing Algorithm for Video Streaming over Mobile Ad Hoc Networks" Korea Information and Communications Society (KICS 2011). [pdf]

Oh Chan Kwon, Hwangjun Song, "Overlay Multicast Tree Construction Algorithm Considering Peer Stability and Link Delay" Korea Information and Communications Society (KICS 2010). [pdf]

Oh Chan Kwon, Hwangjun Song, "Reputation based Stable Overlay Multicast for Live Streaming" Korea Information and Communications Society (KICS 2009). [pdf]

Ongoing Projects

2012.04 ~ 2012.11

Research of Systematic Fountain Code, Electronics and Telecommunication Research Institute (ETRI).

2011.08 ~ 2012.12

Creative IT Excellence Engineering (CITE), Ministry of Knowledge Economy.

2008.12 ~ Current

IT Convergence for Ubiquitous Autonomic Systems under World Class University (WCU), Ministry of Education, Science and Technology.

2008.03 ~ 2012.12

A Study on Next Generation Home Network Middleware and Security under ITRC (Information Technology Research CenterInformation) - HNRC (Home Network Research Center), Ministry of Knowledge Economy.

2008.03 ~ 2013.02

BK21 (BrainKorea21), National Research Foundation Korea.

Completed Projects

2009.03 ~ 2012.02

PC-based Platform Development and its Operation for Dynamic Service Composition: FIRST@PC (Future Internet Research for Sustainable Testbed based on PC), Ministry of Knowledge Economy & Korea Communications Commission.

2011.03 ~ 2012.02

Packet Scheduling and Call Admission Control Algorithm for Video Streaming over WiMAX network, POSTECH Information Research Laboratories.

2011.08 ~ 2011.12

Implementation of AL-FEC Protocol Stack, Electronics and Telecommunication Research Institute (ETRI).

2011.07 ~ 2011.12

Research of Fountain Code-based Stable Overlay Multicast System, Electronics and Telecommunication Research Institute (ETRI).

2008.03 ~ 2011.12

Next generation Network & Services research under ITRC (Information Technology Research CenterInformation) - CENNS (CEnter for Next generation Network & Services research), Ministry of Knowledge Economy.

2011.02 ~ 2011.11

Research of Scalable Web Service Discovery Technology, DMC R&D Center, Samsung Electronics.

2010.03 ~ 2011.02

Research of Fountain Code-based Video Transmission System over Wireless Networks, POSTECH Information Research Laboratories.

2010.07 ~ 2010.11

Research of Media Transmission Method to Support QoS/QoE over Combined Wire/Wireless Network, Electronics and Telecommunication Research Institute (ETRI).

2010.06 ~ 2010.11

P2P Social Group/Route Construction and Differentiated Service Delivery Mechanism, Electronics and Telecommunication Research Institute (ETRI).

2010.01 ~ 2010.12

Implementation of P2P-based Medical Cooperation System, OSTEOPHIL CO., LTD.

2008.08 ~ 2009.07

The study of high-quality video phone service system, LG Electronics Inc.

2008.07 ~ 2008.12

Implement on Simulation Model based on 802.15.4a for Location Tracking, Daegu Gyeongbuk Institue of Science & Technology (DGIST).

2008.03 ~ 2010.02

Research of Future Internet Technology: Transmission Protocol for Wireless Multimedia Application, Korea Advanced Institute of Science and Technology (KAIST), Ministry of Information and Communication.

2008.03 ~ 2009.02

Research on Multimedia Transmission and Multiple Antenna Transmission Systems based on Cross-layer Design for Wireless Mobile Communications, Korea Science and Engineering Foundation.

2008.03 ~ 2008.12

Research on Embedded Software Technology for Network Convergence Mobile Platforms under ITRC (Information Technology Research CenterInformation) - CMEST (Center for Mobile Embedded Software Technology), Ministry of Information and Communication.

2007.07 ~ 2007.12

System Software Technology Development for Efficient Use of Next-generation Non-Volatile RAM, NRL program, Korea Science and Engineering Foundation.

International Patents

USA: "Methods of packetizing encoded symbol and apparatus for using the same", application number: 13/297,071, date: 2011/11/15.

JAPAN: "", application number: 2011-248963, date: 2011/11/14.

Domestic Patents

"Method and system for providing of streaming service in heterogeneous wireless networks", application number: 10-2011-0111750, date: 2011/10/31.

"Method for providing mobile IPTV service and system for the same", application number: 10-2011-0098243, date: 2011/09/28.

"Video streaming system and method based on fountain codes", application number: 10-2011-0020086, date: 2011/03/07.

Point-based Incentive Mechanism over P2P Networks, Korea Copyright Commission (2011-01-199-009286), 2011.12.13.

Bandwidth-based Multipath Routing Algorithm over OpenFlow Network, Korea Copyright Commission (2011-01-213-006851), 2011.10.20.

TCP/IP-based Embedded Multimedia Player, Korea Copyright Commission (2011-01-199-005736), 2011.09.23.

Image-handling program over networks, Korea Copyright Commission (2011-01-163-004960), 2011.08.16.

Packet capture program for linux terminal, Korea Copyright Commission (2010-01-199-007468), 2010.11.30.

Image searching and extracting method using neighbor interpolation, Korea Copyright Commission (2010-01-139-007168), 2010.11.22.

Overlay multicast tree construction method considering peer stability and maximum delay, Korea Copyright Commission
(2009-01-129-007440), 2009.12.16.

VoD service server management platform, Korea Copyright Commission (2008-01-199-006090), 2008.11.19.

VoD service client platform, Korea Copyright Commission (2008-01-199-006091), 2008.11.19.

"QoS routing algorithm Consuming Minimum Overall Timeslots for Video Streaming over MANET"
IEEE International Symposium on Communications & Information Technologies (ISCIT), 14 October 2011, Hangzhou, China.

"A robust P2P video multicast streaming system under high peer churn rate"
IEEE International Conference on Communication Technologies (ICCT), 27 September 2011, Jinan, China.

"Mush-pull based P2P video streaming system using fountain codes"
IEEE International Conference on Computer Communication Networks (ICCCN) Workshop, 4 August 2011, Maui, Hawaii, USA.

"Overlay multicast tree construction algorithm for stable multimedia service"
IEEE Consumer Communications & Networking Conference (CCNC) Workshop, 9 January 2011, Las Vegas, Nevada, USA.

2008.03 ~ Current

Department of Computer Science and Engineering, POSTECH, Pohang, Korea.
General scholarships for every semester.

2008.02

Department of Computer Engineering, Hongik University, Seoul, Korea.
Graduated Summa Cum Laude.

2004.09 ~ 2008.02

Department of Computer Engineering, Hongik University, Seoul, Korea.
General scholarships for seven semesters.

EECE610: Information Retrieval (Fall 2010).

EECE472: Introduction to Computer Security (Spring 2010).

EECE803: IT Research Paper Presentation Skill (Spring 2010).

EECE802: IT Scientific Writing (Winter 2009).

EECE626: Multimedia Networking (Fall 2009).

EEECE700K: Next Generation Technic in Computer Engineering (Fall 2009).

EECE579: Information Communication Security (Spring 2009).

EECE702: Transformation Theory (Spring 2009).

EECE620: Mobile Networks (Fall 2008).

EECE621: Wireless Sensor Networks (Fall 2008).

EECE505: Network Evaluation (Spring 2008).

EECE702B: Probability Theory for CSE (Spring 2008).

EECE800B: Computer Science and Engineering Seminar (Fall 2011).

CSED191: Introduction to Computer Science and Engineering (Undergraduate, Fall 2011).

CSED313: Computer Architecture Laboratory (Undergraduate, Spring 2008).

Languages: C/C++, Java, Assembly, PHP, Perl, HTML, CSS, Javascript, Actionscript

Platforms: Android (Froyo, Gingerbread)

Operating Systems: Windows, Linux

Embedded Platform: ARM, Intel X86

Database: MySQL, MS SQL, Oracle

Simulation Tools: Network Simulator 2 (NS-2)

Video Codec/Software: Joint Video Team (JVT) reference software, ffmpeg, VideoLAN - VLC media

2011.09 ~ Current

Lab manager at MCNL

2012.09 ~ 2012.09

Reviewer for 2012 IEEE Symposium on Industrial Electronics & Applications (IEEE ISIEA 2012)

2010.08 ~ 2011.08

Graduate student council member at POSTECH

2006.03 ~ 2007.12

Web server administrator at Hongik University

2004.03 ~ 2007.12

Worked as a web designer/programmer (freelancer)
I designed more than 20 websites and produced many web solutions for commercial sites.

2002.04 ~ 2002.05

Programmed Dot Drawing Board (Doty) - PHP + MySQL + Javascript
Without GD Library, it operates perfectly only by using the script. You can check this at here.

2000.07 ~ 2000.12

Programmed Bulletin Board System (OZbbs) - PHP + MySQL + Javascript
Even though there are several million threads, this BBS works fast enough to access any thread in a few hundred milliseconds. You can check this at here.

Scalable Web Service Discovery Technology, DMC R&D Center, Samsung Electronics.

This is a DHT-based web service discovery application over P2P networks. This application is working on android platform. We tested this on Gallaxy S and Gallaxy Tap with Android Froyo 2.2. We can discover various web services of other mobile users including streaming service and file sharing service using this application without the help of a centralized server.

Stable Video Streaminm system using a packetization algorithm for fountain codes, ITRC DEMO 2011 (CENNS).

We fully implemented video streaming system using JAVA language. This demo shows a performance of the packetization algorithm for LT code compared to traditional system. You can check visual quality and the amount of symbol errors in real time.

Stable video streaming system using multiple path and cross-layer approach, FIF DEMO 2009.

We fully implemented video streaming system using JAVA language. This streaming system can utilize multiple path that includes both homogeneous network and heterogeneous network. If you select multiple network interface, video streaming data is transmitted via multiple path. We use fountain code to provide reliable streaming service and estimate packet loss rate using received signal strength indicator (RSSI).

Embedded VoD Service Platform, ITRC DEMO 2008 (CMEST).

This is Video on Demand (VOD) service platform for embedded system over wireless networks. A Client system is implemented on arm architecture embedded system and a server system is implemeted on Windows system.

Atrificial Intelligence: One Card Game, A.I. class project, Spring 2006.

This is a one card game program. One user and Three A.I. are participated in this game. I defined the cost function and used a modified A* search algorithm to find an optimal solution in polynomial time. It is very difficult to win this game.