1. University of Tunis El Manar (UTM), National Engineering, School of Tunis (ENIT), Communications Systems Laboratory (SysCom),Tunis,Tunisia
2. McMaster University,Electrical and Computer Engineering Department,Hamilton,ON,Canada,L8S 4K1
3. Abu Dhabi University,Department of Electrical, Computer, and Biomedical Engineering,United Arab Emirates
4. King Abdulaziz University,Faculty of Engineering,Electrical and Computer Engineering Department,Jeddah,Saudi Arabia