1. School of Electrical and Electronic Engineering-Hanoi University of Science and Technology,Department of Communication Engineering,Hanoi,Vietnam
2. Posts and Telecommunications Institute of Technology,Faculty of Electronic Engineering,Hanoi,Vietnam
3. University of Technology and Education-The University of Danang,Faculty of Electrical engineering,Danang,Vietnam
4. Advanced Institute of Science and Technology-The University of Danang,Danang,Vietnam