Studio e simulazione di una metodologia efficiente di routing in una rete cellulare IP

IP BASED MOBILE TELECOMMUNICATIONS NETWORKS

Today, the wireless network arena is made up of different types of access and core network technologies. This heterogeneous approach to the mobility provision, limits the scope of mobility between the above access and networks technologies. On the contrary, both users and service providers expect mobility management will evolve to assure a seamless roaming in the next future.
Moreover, Service providers would like to deploy the same network infrastuctures in both their wireless and wired networks. Therefore one of the more challenging expectation in the networking area is the provision of a unified wired/wireless network platform accomodating the several wired and wireless access technologies that provide layer two access.

In this framework a number of new initiatives and forum have been revisiting the design of third generation networks with the goal of enhancing IP mobility-related solutions to deliver seamless mobility without losing the cost effectiveness, application flexibility and transparency of IP technologies.

This document will address the on-going convergence of IP and mobile telecommunications in wireless networks. In particular, after a brief introduction to the main architectures and technologies proposed for the delivery of IP data to mobile users, the document concentrates on the research activities aimed at developing IP-centric mobile telecommunication networks providing seamless roaming between different types of wireless accesses technologies (IP_Mobile). To this purpose the requirements beyond the existing capabilities of Mobile IP and third generation networks are presented and analysed, and the main proposed protocols are presented and compared. Finally, the research topics related to QoS provision are addressed.