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FlockLab 2: Multi-Modal Testing and Validation for Wireless IoT
(2020)The development, evaluation, and comparison of wireless IoT and cyber-physical systems requires testbeds supporting inspection of logical states and accurate observations of physical performance metrics. We present FlockLab~2, a second generation testbed supporting multi-modal, high-accuracy and high-dynamic range measurements of power and logic timing and at the same time in-situ debug and trace infrastructure of modern microcontrollers ...Conference Paper -
The Time-Triggered Wireless Architecture
(2020)Leibniz International Proceedings in Informatics (LIPIcs) ~ 32nd Euromicro Conference on Real-Time Systems (ECRTS 2020)Wirelessly interconnected sensors, actuators, and controllers promise greater flexibility, lower installation and maintenance costs, and higher robustness in harsh conditions than wired solutions. However, to facilitate the adoption of wireless communication in cyber-physical systems (CPS), the functional and non-functional properties must be similar to those known from wired architectures. We thus present Time-Triggered Wireless (TTW), ...Conference Paper -
STeC: Exploiting Spatial and Temporal Correlation for Event-based Communication in WSNs
(2021)SenSys '21: Proceedings of the 19th ACM Conference on Embedded Networked Sensor SystemsLow-power wireless sensor networks have demonstrated their potential for the detection of rare events such as rockfalls and wildfires, where rapid reporting as well as long-term energy-efficient operation is vital. However, current systems require periodic synchronization to maintain network coordination, heavily rely on node placement or use costly long-range links to infrastructure. We present STeC, a novel wireless communication design ...Conference Paper