May 2014 – Feb. 2021
Director, Engineering Research Center (ERC) on Energy Harvesting Wireless Communications
Jun. 2008 – Dec. 2013
Director, Information Technology Research Center (ITRC) on Cooperative Wireless Communications
Sep. 1999 – Aug. 2000
Visiting Professor, Dept. of Electrical and Computer Eng., University of Victoria, Canada
Jul. 1997 – Jun. 1998
Consultant, SAMSUNG Electronics Co. Ltd., Institute of Information and Communication
Mar. 1993 – Dec. 1998
Invited Lecturer, SAMSUNG Electronics Co. Ltd., Advanced Technology Center
