Wireless Sensor Networks (WSN) usually contains thousands or hundreds of sensors which are randomly deployed. Sensors are powered by battery, which is an important issue in sensor networks, since routing consumes a lot of energy. Such nodes are deployed in thousands to form a network with capacity to report to a data collection sink (base station). An efficient routing scheme in sensor network ...

This paper studies a federated edge learning system, in which an server coordinates set of devices to train shared machine (ML) model based on their locally distributed data samples. During the training, we exploit joint communication and computation design for improving system energy efficiency, both resource allocation global ML-parameters aggregation updating are jointly optimized. In partic...

Promising low-noise aircraft architectures have been identified over the last few years at DLR. A set of DLR concepts was selected for further assessment in context sustainable and energy-efficient aviation established TU Braunschweig 2019, Cluster Excellence Sustainable Energy-Efficient Aviation (SE2A). Specific Top-Level requirements were defined by cluster designs improved with focus on nois...