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Simulation to evaluate performance of two layer vehicular networks

The article introduces an integrated network and traffic simulation platform called Opnet (Optimized Network Engineering Tool). This platform provides the capabilities of network simulation and network protocol simulation. In this paper, we simulate two layer network models with WiFi and WiMAX scenarios and compared their throughput and load HTTP and FTP protocols. Evaluating the performance of these schemes in various conditions can help researchers discover their performance limitation.