Analysis and experimentation with a realistic traffic generation tool for emerging application scenarios

With the emergence of new networks and available applications, emulation of computer networks is an efficient technique for evaluating the performance, transport reliability and application-level protocols. Traffic generation is one of the key challenges in modeling
and simulating the application and network load. In this work, we present a tool, called OpenAirInterface Traffic Generator (OTG), for the generation of realistic application traffic
that can be used for testing and evaluating the performance of emerging networking architectures. In addition to the traffic of conventional applications, OTG is capable of accurately emulating the traffic of new application scenarios such as machine-type communication (MTC) and online gaming. We aim in this work to present OTG architecture and through experimentations to present main novelties and features of the presented tool. To highlight the capability and new features of the tool, the one-way delay of machinetype
communication traffic and the case of M2M aggregated traffic is analyzed over the LTE network using OpenAirInterface in-lab system validation platform. For our delays analysis we will focus on two scenarios with bidirectional and aggregated traffics.