PC Member of

• The 9th IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC-08).
• International Conference on Computer Communications and Networks, ICCCN 2009, ICCCN 2008, ICCCN 2006.
• Program Chair of KOCSEA Technical Symposium 2007 , Symposium 2008 .
• 10th International Conference on Information Technology (ICIT2007, CIT2006).
• The 2007 International Conference on Parallel Processing (ICPP-07).
• 26th and 27th IEEE International Performance Computing and Communications Conference (IPCCC'08, IPCCC'07).
• The International Conference on Information Networking (ICOIN'09, '08, '07, '06).
• Embedded and Ubiquitous Software Engineering Workshop 2004 (EUSE'04).

Session Chair for

• Broadnets'07, Raleigh NC, Sept 10-14, 2007.
• ICPP'06, Columbus OH, Aug 14-18, 2006.
• ICOIN'06, Sendai Japan, Jan 16-19, 2006.
• IASTED PDCS'05, Phoenix AZ, Nov 14-16, 2005.
• ISCA PDCS'05, Las Vegas NV, Sept 12-14, 2005.
• IEEE RTAS'02, San Jose CA, Sept 2002.