1. Department of Electrical Engineering, Lunghwa University of Science and Technology, Taoyuan 333326, Taiwan
2. Department of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin 540301, Taiwan
3. Department of Electrical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807618, Taiwan
4. Department of Computer Science and Engineering, National Taiwan Ocean University, Keelung 202301, Taiwan
5. Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei 106344, Taiwan