From 2002 to 2004, I worked as a postdoctoral fellow at the University of Trendo, engaged in the research of wireless Internet technology.

2004-2006 Associate Professor (Master Supervisor), School of Communication Engineering, Xidian University

2006-present Professor (Doctoral Supervisor), School of Electronic Information, Northwestern Polytechnical University

July 2007-12 was a visiting professor in INSA Lyon, France.