Iordanis K. Giannopoulos received the BEng (Hons) in Electrical and Electronic Engineering Department of Electronic and Computer Engineering, Portsmouth University, Portsmouth and the MSc in Information Engineering, School of Engineering and Mathematical Sciences, City University, London, in August 2004.and February 2006, respectively. Currently, he is a PhD Candidate at the Department of Information and Communication Systems Engineering, University of the Aegean, Karlovasi, Samos. Interests include investigation of mathematical modelling, stochastic processes, Kalman Filtering, predictive algorithms and control theory as applied to computer networks and especially to quality of services (QoS) and performance analysis.