Internet of Things Simulation Using OMNeT++ and Hardware in the Loop
Especially in the upcoming Internet of Things (IoT), an efficient data exchange is mandatory and the analysis of network communication is of high importance. Value must be attached to several different communication protocols, as there is no universally a
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Internet of Things Simulation Using OMNeTCC and Hardware in the Loop Philipp Wehner and Diana Göhringer
4.1 Introduction While the internet was primarily used by human beings a couple of years ago, a trend shows up, where “intelligent things” use the network infrastructure to communicate with each other and to exchange data. The aim is to replace the personal computer, as known in its common form, by something that supports humans by their daily activities and procedures, without getting perceived directly [1]. Problematic in this context are the different demands of individual network nodes regarding the network infrastructure. Efficient communication is affected by different protocols that are used [2]. To face this challenge, standardization can help to create preferably huge subnetworks that use a consistent procedure to communicate. But this method is only meaningful as long as it does not produce high costs for individual network participants and complexity of the standard is in a balanced relation to the obtainable benefit. This is not at least related to the energy that is consumed for the standard-compliant communication. The connection of basic sensors, e.g., window or door contact switches in the smart home, would be reduced to absurdity, when a high-cost communication medium, as, for example, Ethernet is used. High acquisition and operating cost would be the result. Hence, utilizing a common interface for communication is meaningful only when requirements of the individual network participants are compatible with the targeted standard. At this, it should get clear that value has to be attached to the interconnection of subnetworks via gateways. To enable the communication across the subnetworks, gateways must be deployed where standardization is not a means to an end. As the complexity of this consideration, especially for huge networks, is
P. Wehner () • D. Göhringer Application-Specific Multi-Core Architectures (MCA) Group, Ruhr-University Bochum, Bochum, Germany e-mail: [email protected]; [email protected] © Springer International Publishing Switzerland 2017 G. Keramidas et al. (eds.), Components and Services for IoT Platforms, DOI 10.1007/978-3-319-42304-3_4
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not negligible, new technologies have to be developed that allow the exploration of this issue. Particularly to avoid problematic cases which are difficult to investigate in a real world environment, simulation techniques need to be developed that allow a safe but accurate observation. Subject of this paper is the introduction of a concept that starts by developing a basic gateway. Over the course of time, it can be transferred to a simulator for the Internet of Things (IoT). To achieve this, the network simulator OMNeTCC is introduced that can be utilized for the research on the communication infrastructure. But the target of the paper is not only the simulation of Ethernet networks; it rather introduces a technique to simulate different communication standards in the IoT. It further should be
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