1 Software College, Northeastern University, Shenyang 110819, China 2Department of Electrical and Computer Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates 3 Institute of Mathematics and Computer Sciences, Ural Federal University, Lenina 51, Ekaterinburg, Russia 4College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China 5 Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong