Hierarchical ATM based LAN/MAN backbone network for a personal communication network

This paper is concerned with the development of a backbone network for a high capacity Personal Communication Network (PCN). It is expected that some of the 1(st) generation PCN will be implemented on the DCS1800, which is a GSM, based standard. The present backbone network of the GSM system is based on a conventional centralised structure. The paper will examine the efficiency of the current GSM backbone network using the circuit switched input traffic for both full rate and half rate speech coders. Finally the paper will propose an ATM LAN/MAN based backbone network which removes some of the inefficiencies of the existing GSM backbone network and can efficiently handle new services.