TAHA A KHALAF (Member, IEEE) received the BSc and MSc degrees in electrical engineering from Assiut University, Assiut, Egypt, in 2000 and 2004, respectively, and the PhD degree from Iowa State University, Ames, IA, USA, in May 2011 He is currently an Associate Professor with the Department of Electrical Engineering, University of Tabuk His major research interests include wireless communications, cooperative communications, network coding, cognitive radio, and physical layer security He received ECEB Washington DC grant 2006-2010 He also received excellence awards during his study from Mobinil, Six October University, and the Egyptian Syndicate of Engineers