selected publications academic article A Network Simulation Tool for User Traffic Modeling and Quality of Experience Analysis in a Hybrid Access Architecture. . 1-6. 2014 conference paper 5G NORMA: System architecture for programmable & multi-tenant 5G mobile networks. . 2017 The METIS 5G Architecture: A Summary of METIS Work on 5G Architectures. . 2015 Rethinking the mobile and wireless network architecture: The METIS research into 5G. . 2014