Seokjae Ha

School of Computer Science and Engineering,  Seoul National University
San 56-1, Shillim-9 dong, Kwanak-gu,
Seoul 151-742, Korea

 

E-mail: sjha@mmlab.snu.ac.kr
 
+82-2-880-0147(voice)
+82-2-872- 2045 (fax.)

 

I’m Ph.D candidate in  Multimedia & Mobile Communications Lab(MMLab) at Seoul National University.

I received BS and MS degree in Computer Engineering from Seoul National University, Korea, in Feb. 1996, 1998 respectively.

My faculty advisor is Yanghee Choi.

Research Area

1.           SIP based VoIP architecture

2.           Address Lookup algorithm for High-speed Router

3.           Ad-Hoc Networks

4.           Active Networking

5.           TCP behavior in Traffic policing Environment(now in progress)

Publications

1.       Eun Kyoung Paik, Sangheon Pack, Wondong Yun, Seokjae Ha, Yanghee Choi, Development of SIP Based Presence System and Location Based Mobile Services, Proceedings of The 28th KISS Spring Conference, Vol. 28, No. 1, pp. 526-528, Suwon, Korea, Apr. 27~28, 2001.

2.       Sangheon Pack, Eun Kyoung Paik, Seokjae Ha, Yanghee Choi, Design and Implementation of VoIP System Using SIP, Proceedings of The 28th KISS Spring Conference, Vol. 28, No. 1, pp. 457-459, Suwon, Korea, Apr. 27~28, 2001.

3.       Dongkyun Kim, Seokjae Ha, Yanghee Choi, "K-hop Cluster-based Dynamic Source Routing in Wireless Ad-Hoc Packet Network," IEEE VTC, Ottawa, Canada, 1998.

4.       Dongkyun Kim, Seokjae Ha, Yanghee Choi, "Variable-sized Cluster-based Dynamic Source Routing Protocol in Wireless Ad-Hoc Packet Network with Variable Transmission Ranges," IEEE VTC, Houston, USA, 1999.

5.       Heonsoo Lee, Seokjae Ha, Yanghee Choi, "Fast Update of Forwarding Tables in Internet Router Using AS Numbers," ICOIN-15, Beppu, Japan, Jan. 2001

6.       하석재, 정환석, 최양희, "트래픽 패턴에 따른 동적인 자원관리기법을 적용한 라우터의 설계및 구현," 한국통신학회 추계종합학술대회, 수원, Nov. 1999.

7.       하석재, 김동균, 최양희, "무선 Ad Hoc 망에서 K 클러스터를 이용한 경로 설정," 한국정보과학회 추계학술대회, 서울, Oct. 1997.

8.       이영석, 하석재, 권태경, 최양희, "차세대 인터넷 기술 개요," SK텔레콤저널,  July.  2000.

Projects

1.      National Research Lab(NRL)

2.      Development of Base technology for Call server design

3.      ClipNet