1. Electrical and Computer Engineering Department, University of Houston, Houston, TX, USA
2. Department of Computer Science, Georgia State University, Atlanta, GA, USA
3. Department of Electrical Engineering and Computer Science, Daegu Gyeongbuk Institute of Science and Technology, Daegu, South Korea
4. Department of Electrical and Computer Engineering, University of North Carolina at Charlotte, Charlotte, NC, USA
5. Department of Electrical, Computer & Biomedical Engineering, Ryerson University, Toronto, ON, Canada
6. Department of Electrical and Computer Engineering, University of Houston, Houston, TX, USA