Reliable train-to-train communications for dynamic coupling and rail collision avoidance system (RCAS)
DLR is currently developing the new concept „high-speed feeder passenger train Next Generation Train (NGT) LINK”. For this train, we are mainly interested in a flexible, demand-dependent configuration through dynamic coupling, i.e. merging short trains to one long train and separating the long train into short trains on the fly. This will result in an increased passenger capacity of the railways without building additional tracks.
For that, robust and reliable wireless communications between trains is required. This is a challenge due to strong fading and sometimes high attenuation between the direct train-to-train communications. Moreover, message collisions occur on the wireless radio channel during times of high data traffic as the wireless communications networks such as TETRA or 802.11p are decentralized and self-organizing. Thus, the communications nodes compete to access the wireless radio channel.
Within the “NGT LINK” research of DLR, the master student shall develop, implement and test a suitable chain of simulation tools for the train-to-train communications, the dynamic coupling scenario, and the train and surrounding environments. Further, the master student shall determine if robust and reliable wireless communications can be achieved with state-of-the-art systems, e.g. TETRA or 802.11p, based on suitable metrics, e.g. the update-delay.
Studies in electrical or communications engineering, computer science, and related fields
Knowledge about communications technology required
Knowledge about car-to-car or train-to-train communications required
Knowledge about MATLAB and C++ required
Knowledge about ns-3 and traffic simulators desired
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