1. University of Yaounde I,Laboratory of Energy, Electrical and Electronics Systems,Yaounde,Cameroon
2. University of Douala,Laboratory of Electronics and Automatics,Douala,Cameroon
3. Xiamen University Malaysia,School of Electrical and Computer Engineering,Selangor,Malaysia
4. Xiamen University Malaysia,School of Computing and Data Science (SCDS),Selangor,Malaysia