1. Telecommunications University, Nha Trang, Vietnam
2. Department of Computing Fundamentals, FPT University, Ho Chi Minh City, Vietnam
3. Faculty of Radio Electronics and the Advanced Wireless Communication Group, Le Quy Don Technical University, Ha Noi City, Vietnam
4. Laboratory of Applied Physics, Science and Technology Advanced Institute, Faculty of Applied Technology, and School of Technology, Van Lang University, Ho Chi Minh City, Vietnam