Dr. Roshdy H.M. Hafez: Biography Roshdy H.M. Hafez obtained the Ph.D. in Electrical Engineering, from Carleton University, Ottawa, Canada. He joint the Department of Systems and Computer Engineering, Carleton University as an assistant professor, and he is now a full professor. Dr. Hafez has many years experience in the areas of Wireless communications, RF and spectrum engineering. He has lectured extensively in wireless and related areas. His current research focuses on broadband wireless networking, 3G/4G, wireless over fiber and sensor networks. He acts as a consultant to Nortel, Industry Canada, CRC, SigproWireless and other telecommunications companies. Between 1994 and 2000 Dr. Hafez was actively involved and lead projects in federal and provincial centers of excellence: TRIO, CITR and CITO. Dr. Hafez gave several tutorials in international conferences and taught many short courses to the industry.