PSTN performance evaluation using modeling and simulation for central region / Anuar Zakaria

The purpose of this project is to evaluate the performance of Public Switched Telephone Network(PSTN) exchange at Central Region. The PSTN performance evaluation is very important because any problem exists in PSTN exchange can influence the service quality and customer satisfaction. As we know, Central Region is a highly developing area with infrastructure, economy, social and politic. It is the main area for network growth and further for Telekom Malaysia's income. This project will try to overcome a specific problem that is the network congestion by using modeling and simulation method that can increase network utilization, service performance and quality of PSTN exchange. In this project the case study is carried out at Kuala Selangor (KS) exchange as a Group Switching Center (GSC). It is the NEAX 61 (Multi) type that is the Stored Program Controlled (SPC) switching system. The existing four levels switching hierarchy in Telekom Malaysia is applied in this modeling and simulation method. The simulation package used in this method is the Block Oriented Network Simulator (BONeS). It is hoped that by using BONeS simulation package, the problems of network congestion faced in PSTN exchange could be properly modelled thus the appropriate kinds of modification to the system can be determined. It also can determine the right choice for PSTN exchange such as the right alternative routes, the right Grade of Service (GOS), the better exchange performance in order to give better quality services to subscribers and the better trunks and nodes (exchanges) utilization. From the simulation result, it is hoped that the right model of PSTN exchange can be determined hence giving most accurate answer to the problem of network congestion