Hacı Ali Mantar received the BS degree in Electronics and Telecommunication Engineering from Istanbul Technical University, Turkey, in 1993 and the MS and PhD degrees in Electrical Engineering and Computer Science from Syracuse University, Syracuse, NY, USA, in 1998 and 2003, respectively. From 1997 to 2000, he worked as an instructor at Syracuse University. Between 2000 and 2003, he was supported by the Graduate Students Research in Wide Area Network Management project funded by the National Science Foundation (NSF). Between 2003 and 2005, he involved a Computer Resiliency project funded by DARPA, USA. He is currently working as president of TUBITAK BILGEM and also at Gebze Institute of Technology, Turkey, as a professor. His research interests include wide area network management, QoS, grid computing, routing, IP telephony and network security. Recently, he has been working energy efficiency in wired and wireless networks.