Abstract
This chapter contains the description of a simulative/emulative platform developed by the authors and called the “Hybrid Simulative-Emulative Platform (HySEP).” It has been designed and built to simulate long term evolution (LTE) networks by using Network Simulator 3 (ns-3) and to emulate a backhaul network that implements the Differentiated Service (DiffServ) solution to guarantee Quality of Service (QoS). The former composes the Simulated Network Segment (SNS), the latter the Emulated Network Segment (ENS). The use of ns-3 assures a detailed LTE simulative model and an effective mechanism to connect the simulated scenario with real network nodes and links. Moreover, this platform enables the creation of a heterogeneous network through the exploitation of personal computers and free software without using any ad-hoc hardware. HySEP makes possible testing different network configurations, limiting costs and using technologies such as LTE whose real implementation is hardly applicable inside a research laboratory. The tool can be completely configured and used remotely through Internet connections.
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