1. School of Microelectronics and Communication Engineering, Chongqing University,Chongqing,China
2. École de technologie supérieure, Université du Québec,Electrical Engineering Department,Montréal,QC,Canada,H3C 1K3
3. School of Computer Science and Engineering, Nanyang Technological University,Singapore
4. Singapore University of Technology and Design,Pillar of Information Systems Technology and Design,Singapore