1. Institute of Information Technology, Vietnam Academy of Science and Technology,Hanoi,Vietnam
2. Hanoi Pedagogical University 2,Faculty of physics,Hanoi,Vietnam
3. Hanoi Open University,Faculty of Electrical and Electronics Engineering,Hanoi,Vietnam
4. University of Fire Prevention and Fighting,Faculty of Fire Engineering and Technology,Hanoi,Vietnam
5. University of Transport and Communications,Hanoi,Vietnam
6. Phenikaa University,Faculty of Electrical and Electronic Engineering,Hanoi,Vietnam