1. Faculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 710372, and the Department of Fundamental Science, Posts and Telecommunications Institute of Technology, Ho Chi Minh City 710372, Vietnam
2. Department of Smart Energy Systems, Seoul National University of Science and Technology, Seoul 01811, South Korea, and the Department of Computer Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City 710372, Vietnam
3. Faculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 710372, Vietnam
4. Wireless Communications Department, Posts and Telecommunications Institute of Technology, Ho Chi Minh City 710372, Vietnam