[1]   2006.11  to  2008.3
McGill University, Montreal, Quebec, Canada  | Dept. of Electrical and Computer Engineering (ECE)  | NULL  | Visiting Professor
Working on coded cooperation for wireless communication systems 
[2]   2001.9  to  2003.9
McGill University, Montreal, Quebec, Canada  | Dept. of Electrical and Computer Engineering (ECE)  | NULL  | Senior Research Associate
Working on advanced iteratively decodable codes for wireless communication systems 
[3]   1999.9  to  2001.9
University of Surrey, Guildford, Surrey, UK  | Institute for Communication Systems  | NULL  | Senior Research Fellow
Working on the project UMTS (Universal Mobile Telecommunication Systems, in particular, responsible for advanced channel coding techniques) 
[4]   1998.1  to  1999.4
City University of Hong Kong  | Dept. of Electrical and Computer Engineering (ECE)  | NULL  | Research Fellow  | Contracted Research Staff
Research Fellow at Dept. of Electrical and Computer Engineering (ECE), City University of HK, Hong Kong, China 
[5]   1997.1 to  Now
Nanjing University of Aeronautics and Astronautics (NUAA)  | College of Electronic and Information Engineering  | NULL  | Full Professor  | Working normally
Working on wireless communication techniques, signal processing, communication networks and satellite communications