Affiliation: | 1. Department of Electrical, Electronic and Computer Engineering, University of Pretoria, Pretoria, South Africa;2. Department of Electrical Engineering, University of Sharjah, Sharjah, UAE;3. Department of Electrical Engineering, Tshwane University of Technology, Pretoria, South Africa;4. Department of Electrical and Electronic Engineering, University of Johannesburg, Johannesburg, South Africa |