Implementation and Performance Evaluation of the TNAS Communications Module for Interworking PSTN with PSDN

다국어 초록 (Multilingual Abstract)

In this paper, we provided the communications module in the Telephone Network Access Subsystem( TNAS) of the Advanced Communications Processing System(ACPS). We defined communication tasks and related resources such as several queues which are executed in real-time operating systems, and we implemented the procedures for processing user information. Through traffic modeling and simulation, the performance of the Service Processing board Assembly(SPA) is evaluated in terms of system utilization and buffer size. The ACPS should accommodate various public networks such as public switched telephone network, packet switched data network, frame relay network, and ATM network. The communications module proposed in this paper could be used in the interface between the SPA and the High Speed Network (hsna) Adaptor of other network interface subsystems.