Browsing by Subject "handover"

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    GSM and UMTS mobility simulator
    (2005) Öner, Mehmet
    In this thesis, a mobility simulator for GSM and UMTS has been designed and implemented using Visual C#.Net. The objective has been to design and implement such a simulator that can be used to create and study different traffic load scenarios and mobility patterns that can cause congestion situations. The modular approach adopted for the GSM and UMTS simulator allow us to evaluate the performance of new services. The simulator uses propagation simulation results and terrain profile data to produce capacity and performance metrics related to GSM and UMTS networks. The capacity and the service quality of the network are assessed in a long-term system level simulation scheme. Mobility generation is the core of the simulator program. It generates random paths for the mobile users in the simulation. Then the effects of the mobility patterns of the users on the system capacity are investigated. In GSM mobility simulator, mobility, traffic generation, call-admission and handover are implemented. In UMTS, in addition to GSM modules, power control and soft handover generation is implemented.