PEDAMACS: Power Efficient and Delay Aware Medium Access Protocol for Sensor Networks
IEEE Transactions on Mobile Computing
Real-time wireless sensor networks
Real-time wireless sensor networks
Time-Critical data delivery in wireless sensor networks
DCOSS'10 Proceedings of the 6th IEEE international conference on Distributed Computing in Sensor Systems
Configuration and operation of networked control systems over heterogeneous WSANs
ACM Transactions on Embedded Computing Systems (TECS) - Special Section on ESTIMedia'10
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The utilization of wireless sensor networks in industrial environments poses issues related to performance control. We consider a networked system composed of multiple wireless sensor networks (WSN) that are plugged into a cabled Networked Control System (NCS) made of middleware computers and control stations. The challenge that we faced was to provide predictable end-to-end latency expectations in those settings, as opposed to the problem of predicting latencies within a WSN only. We consider a deployment with multiple small-sized schedule-based WSN sub-networks and the NCS. The approach accounts for details such as de-synch issues that are to be expected in the heterogeneous context. Experimental results show actual latencies and confront them with predictions in a testbed deployment.