Modeling switched circuit network systems using PLANITU
Kenning, Raymond A.
McEachen, John C.
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The realization of today's telecommunication networks is a challenging task. Network architectures are constantly changing to meet new requirements for many new and exciting services and applications. As a result of these added new requirements, new types and mixes of traffic profiles are being introduced into these networks. To facilitate these needs, there are many tools which have been developed to aid in the planning, development, optimization and traffic prediction process. One such tool is PLANITU 3.0. PLANITU is designed to handle many types of circuit network systems and features a powerful graphics capability. The software uses wellestablished, iterative prediction concepts, such as Erlang-B loss equation and the Wilkinson ERT method. Two types of network systems were modeled using real data supplied by Siemens Indonesia. Target networks for study included a fixed switched networks and a GSM (Global System for Mobile Communications) network. PLANITU 3.0 performed well for the fixed switched network systems demonstrating reasonable results within an acceptable degree of accuracy, but performed poorly for GSM systems yielding inoperable simulation features, numerous bugs and software instability.
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