Abbas Jamalipour Fazirulhisyam Hashim, M. Rubaiyat Kibria, Damien Magoni, Abbas Jamalipour, Hierarchical Security Architecture for Next Generation Mobile Networks Farshad Javadi, M. Rubaiyat Kibria, Abbas Jamalipour, Distributed Scheduling based Dimensioning Mechanism for Wireless Mesh Networks Kumudu S. Munasinghe, Abbas Jamalipour, Analytical Modeling of IMS based Interworking in Heterogeneous Mobile Data Networks