ROOT: an object-oriented data analysis framework
Linux Journal
An object-oriented tool for simulating distributed real-time control systems
Software—Practice & Experience
RAP: A Real-Time Communication Architecture for Large-Scale Wireless Sensor Networks
RTAS '02 Proceedings of the Eighth IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'02)
Schedulability Analysis for Tasks with Static and Dynamic Offsets
RTSS '98 Proceedings of the IEEE Real-Time Systems Symposium
SPEED: A Stateless Protocol for Real-Time Communication in Sensor Networks
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Improved Schedulability Analysis of Real-Time Transactions with Earliest Deadline Scheduling
RTAS '05 Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Symposium
Timing and Power Issues in Wireless Sensor Networks " An Industrial Test Case
ICPPW '05 Proceedings of the 2005 International Conference on Parallel Processing Workshops
WNS2 '06 Proceeding from the 2006 workshop on ns-2: the IP network simulator
Proceedings of the 4th workshop on Embedded networked sensors
Real-time multi-view vision systems using WSNs
Proceedings of the 2009 ACM symposium on Applied Computing
Visual tracking using sensor networks
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
Simulating real-time aspects of wireless sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on simulators and experimental testbeds design and development for wireless networks
A P2P computing system for overlay networks
Future Generation Computer Systems
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Wireless Sensor Networks are now being considered for use in industrial automation and process control. These applications present different characteristics with respect to classical WSN application domains. In particular, the nodes may have high computational load due to the high sampling frequencies; moreover, they present real-time constraints, as data must be processed and transmitted with bounded delay. In this paper, we present RTNS, a simulator for distributed realtime systems that allows to model and simulate the temporal behavior of network protocols, real-time Operating System and distributed applications. The tool has been developed as a plug-in extension of the popular NS-2 simulator, hence it is possible to reuse most of the packages already available for NS-2. The aspects related to real-time Operating System, the overhead of interrupt handlers and protocol management, and the set of concurrent tasks executing on each node, are modeled using the RTSim simulator. With respect to a previously documented version, the package now has an extended scope and can model complex multi-hop scenarios. After presenting the simulator structure, we show how the tool can be used to model and simulate realistic WSN scenarios. Hereby, three examples are presented with the aim of showing how possible failures in the nodes or a load suddenly appearing in gateways connecting neighbor clusters for structured topologies can cause a worsening in the end-to-end transmission delays. We show that the adoption of a real-time Operating System in the nodes along with a proper scheduling policy for tasks can avoid (or at least keep under control) unpredictable effects in end-to-end delay.