1. Fricke and Mallah Microwave Technology GmbH, Lower Saxony, Peine, Germany
2. Department of Electrical and Computer Engineering, Aarhus University, Aarhus, Denmark
3. Department of Electrical Engineering, Mazandaran University of Science and Technology, Babol, Iran
4. Department of Electrical Engineering and Computing, Engineering Faculty, Shahed University of Tehran, Tehran, Iran
5. John von Neumann Faculty of Informatics, Obuda University, Budapest, Hungary
6. Department of Computer Science, The University of Texas at San Antonio, San Antonio, TX, USA