1. School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China
2. School of Automation, Guangdong University of Technology, China
3. School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore
4. Department of Electronic and Electrical Engineering, The University of Sheffield, Mappin Street, Sheffield, UK
5. Systems and Computer Engineering, Carleton University, Ottawa, Canada