An architecture of ATM-based PCS network: Signaling traffic and capacity

In this paper, we propose an ATM-based Personal Communication Service (PCS) network architecture with ring-based access networks. We also propose a simple ring management scheme using ATM Add-Drop-Multiplexers (ADM). The ring has a Virtual Star topology, and we manage its bandwidth at two levels: Virtual Path (VP) level and Virtual Channel (VC) level. We consider four different types of configurations according to the locations of visitor location register (VLR) and mobile switching center (MSC) functions, and obtain signaling load and processing load. A 150 Mb/s-dual ring can support about 5,500 homogeneous ON-OFF voice sources. This ring capacity corresponds to covering approximately 180 cells in the case of 30 connections per cell. Even though we are here concerned with evaluating the proposed network for voice traffic, we can extend this study to the analysis of the proposed ATM-based PCS network accommodating various types of multimedia traffic as a further study.