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Mobile robots get increasingly important in the implementation of adaptive production systems. In order to gain the most benefit from mobile robots they need at the one hand efficiently cooperate with the overall production system and on the other hand provide their functionality (e.g., pick and place of parts) fast and with a high precision. Semantic enhanced multi-agent systems have proven to serve...
Ultra-Wideband Impulse Radio is a promising technology for industrial automation applications because of its inherent multipath robustness and coexistence features. In our efforts to deploy UWB-IR for industrial automation, we use an adapted version of the IEEE 802.15.4a PHY. In this paper, we present a way to improve robustness for low-latency sensor-actor networks with short cyclic packets of process...
Security for ad hoc network environments has received a lot of attention as of today. Previous work has mainly been focussing on secure routing, fairness issues, and malicious node detection. However, the issue of introducing and conserving trust relationships has received considerably less attention. In this article, we present a scalable method for the use of public key certificates and their revocation...
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