Abstract
The tendency in future mobile networks consists in a rapid growth of Internet Protocol (IP)-based traffic and services. In contrast to this tendency, 3rd Generation (3G) cellular networks were designed assuming a predominance of circuit switched traffic and thus, are not designed to efficiently carry IP-based packet data traffic. Consequently, 3G cellular networks have to evolve architecturally. Evolved cellular network architectures are expected to provide performance values which are at least comparable to existing cellular network architectures without the necessity to provide additional processing capacity. This paper presents an event-driven and tool-based simulation methodology, which provides decision support to the network designer of future cellular networks, when assessing future Universal Telecommunications System (UMTS) Radio Access Networks (RANs) with regard to signalling performance in a very early design phase. A case study on processor capacity planning and End-to-End (E2E) signalling performance optimisation of a conceivable RAN evolution scenario is also provided.
Published Version
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