1. Professor, Dept. of Electrical Engineering, Mansoura Univ., Mansoura 35516, Egypt (corresponding author).
2. Assistant Professor, Dept. of Electrical Engineering, Mansoura Univ., Mansoura 35516, Egypt.
3. Professor, School of Electronics, Electrical Engineering and Computer Science, Queen’s Univ. of Belfast, Belfast BT9 5AH, U.K.