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Sensors 2007, 7(10), 2157-2173; doi:10.3390/s7102157

Wireless Sensor/Actuator Network Design for Mobile Control Applications

2,* , 1 and 1
1 State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China 2 Faculty of Information Technology, Queensland University of Technology, GPO Box 2434, Brisbane QLD 4001, Australia
* Author to whom correspondence should be addressed.
Received: 3 October 2007 / Accepted: 8 October 2007 / Published: 9 October 2007
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Wireless sensor/actuator networks (WSANs) are emerging as a new generationof sensor networks. Serving as the backbone of control applications, WSANs will enablean unprecedented degree of distributed and mobile control. However, the unreliability ofwireless communications and the real-time requirements of control applications raise greatchallenges for WSAN design. With emphasis on the reliability issue, this paper presents anapplication-level design methodology for WSANs in mobile control applications. Thesolution is generic in that it is independent of the underlying platforms, environment,control system models, and controller design. To capture the link quality characteristics interms of packet loss rate, experiments are conducted on a real WSAN system. From theexperimental observations, a simple yet efficient method is proposed to deal withunpredictable packet loss on actuator nodes. Trace-based simulations give promisingresults, which demonstrate the effectiveness of the proposed approach.
Keywords: wireless sensor/actuator network; sensor network; control application; link quality; packet loss. wireless sensor/actuator network; sensor network; control application; link quality; packet loss.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Xia, F.; Tian, Y.-C.; Li, Y.; Sung, Y. Wireless Sensor/Actuator Network Design for Mobile Control Applications. Sensors 2007, 7, 2157-2173.

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