Abstract

Telecommunication applications have become some of the most important aspects of our daily life, especially with the Internet-based applications that are available even on cell phones. One of the challenges faced by telecom companies is to provide robust and powerful servers that are capable to handle the great increase of the number of subscribers and to accomplish the heavy Internet-based applications that generate a tremendous traffic load. Telecom companies evaluate their products' performance before releasing them to the market by applying a large amount of generated traffic to the telecom servers in order to measure their capability under traffic load. To do this, powerful solutions are needed, which generate traffic by modeling different telecom protocols. In this thesis, we propose a new technique of modeling a traffic generator solution to load the Mobile Switching Center (MSC) for the Universal Mobile Telecommunications System (UMTS). This traffic generator is modeled to load the MSC through various mobile call scenarios such as location update, mobile call originating, mobile call terminating, and call clearing. Based on that, we model the Radio Access Network Application Part protocol' procedures to generate the radio access messages that carry and handle the mobile messages. These mobile messages will be represented through the Mobility Management and the Call Control protocols' models. To achieve the above goals, we utilize the UML Use Case Model to describe the functional behaviors of the traffic generator, also we present the UML Analysis Model that provides the logical implementation of the functional behaviors of the proposed traffic generator.