Ali HAMLILI is Professor at the Computer and Systems Analysis High National School Communication Networks Department (Ecole Nationale Supérieure dInformatique et dAnalyse des Systèmes/ENSIAS) of Mohamed V-Souissi University of Rabat (Morocco). His expertise is on networking and systems safety. His main research activities include: Protocol design, traffic management, performance evaluation, and quality of service issues in IP next generation networks; Wireless access and multi-hop networks modeling, planning and optimization. Reliability growth and safety modeling of complex systems. He received his Ph.D. degree in computer science from the Ecole Nationale des Ponts et Chaussées of Paris (France) in 1993 and a high doctorate degree in applied sciences (Engineering methods) from Mohamed V-Agdal University of Rabat (Morocco) in 1999. He teaches one under-graduate course on Simulation Techniques and three graduate courses on Quality of Service in IP Networks, IP Metrics and Multiservice Network performance evaluation, and Simulation and Networks dimensioning.