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Modeling and worst-case dimensioning of cluster-tree wireless sensor networks
- In Proceedings of the 27th IEEE Real-Time Systems Symposium (RTSS’06
, 2006
"... Time-sensitive Wireless Sensor Network (WSN) applications require finite delay bounds in critical situations. This paper provides a methodology for the modeling and the worst-case dimensioning of cluster-tree WSNs. We provide a fine model of the worst-case cluster-tree topology characterized by its ..."
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Cited by 52 (8 self)
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Time-sensitive Wireless Sensor Network (WSN) applications require finite delay bounds in critical situations. This paper provides a methodology for the modeling and the worst-case dimensioning of cluster-tree WSNs. We provide a fine model of the worst-case cluster-tree topology characterized by its depth, the maximum number of child routers and the maximum number of child nodes for each parent router. Using Network Calculus, we derive “plug-and-play ” expressions for the endto-end delay bounds, buffering and bandwidth requirements as a function of the WSN cluster-tree characteristics and traffic specifications. The cluster-tree topology has been adopted by many cluster-based solutions for WSNs. We demonstrate how to apply our general results for dimensioning IEEE 802.15.4/Zigbee cluster-tree WSNs. We believe that this paper shows the fundamental performance limits of cluster-tree wireless sensor networks by the provision of a simple and effective methodology for the design of such WSNs. 1.
Improving the IEEE 802.15.4 Slotted CSMA/CA MAC for TimeCritical Events in Wireless Sensor Networks
- In Proc. of the 2nd Workshop on Real Time Networks (RTN
, 2006
"... www.hurray.isep.ipp.pt ..."
communications over cluster-tree sensor networks with mobile sink behaviour
- in Proceedings of the 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA ’08
, 2008
"... Modelling the fundamental performance limits of Wireless Sensor Networks (WSNs) is of paramount importance to understand the behaviour of WSN under worst-case conditions and to make the appropriate design choices. In that direction, this paper contributes with a methodology for modelling cluster-tre ..."
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Cited by 15 (2 self)
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Modelling the fundamental performance limits of Wireless Sensor Networks (WSNs) is of paramount importance to understand the behaviour of WSN under worst-case conditions and to make the appropriate design choices. In that direction, this paper contributes with a methodology for modelling cluster-tree WSNs with a mobile sink. We propose closed-form recurrent expressions for computing the worst-case end-to-end delays, buffering and bandwidth requirements across any source-destination path in the cluster-tree assuming error free channel. We show how to apply our theoretical results to the specific case of IEEE 802.15.4/ZigBee WSNs. Finally, we demonstrate the validity and analyze the accuracy of our methodology through a comprehensive experimental study, therefore validating the theoretical results through experimentation. 1.
Design and Evaluation of a Wireless Sensor Network Based Aircraft Strength Testing System
, 2009
"... sensors ..."
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Version: 1.0 Date: 09-04-2007
"... Open-ZB: an open-source implementation of the IEEE 802.15.4/ZigBee protocol stack on TinyOS ..."
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Open-ZB: an open-source implementation of the IEEE 802.15.4/ZigBee protocol stack on TinyOS
Layer of Low-Rate Wireless Private Area Networks
"... The IEEE 802.15.4/ZigBee protocols are gaining increasing interests in both research and industrial communities as candidate technologies for Wireless Sensor Network (WSN) applications. In this paper, we present an open-source implementation of the IEEE 802.15.4/ZigBee protocol stack under the TinyO ..."
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The IEEE 802.15.4/ZigBee protocols are gaining increasing interests in both research and industrial communities as candidate technologies for Wireless Sensor Network (WSN) applications. In this paper, we present an open-source implementation of the IEEE 802.15.4/ZigBee protocol stack under the TinyOS operating system for the MICAz and TelosB motes. This work has been driven by the need for an open-source implementation of the IEEE 802.15.4/ZigBee protocols, filling a gap between some newly released complex C implementations and black-box implementations from different manufacturers. In addition, we share our experience on the challenging problems that we have faced during the implementation of the protocol stack. We strongly believe that this open-source implementation will potentiate research works on the IEEE 802.15.4/ZigBee protocols, allowing their demonstration and validation through experimentation.
