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http://dx.doi.org/10.6109/jkiice.2020.24.11.1477

Robust Wireless Sensor and Actuator Network for Critical Control System  

Park, Pangun (Department of Radio and Information Communications Engineering, Chungnam National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.24, no.11, 2020 , pp. 1477-1483 More about this Journal
Abstract
The stability guarantee of wireless network based control systems is still challenging due to the lossy links and node failures. This paper proposes a hierarchical cluster-based network protocol called robust wireless sensor and actuator network (R-WSAN) by combining time, channel, and space resource diversity. R-WSAN includes a scheduling algorithm to support the network resource allocation and a control task sharing scheme to maintain the control stability of multiple plants. R-WSAN was implemented on a real test-bed using Zolertia RE-Mote embedded hardware platform running the Contiki-NG operating system. Our experimental results demonstrate that R-WSAN provides highly reliable and robust performance against lossy links and node failures. Furthermore, the proposed scheduling algorithm and the task sharing scheme meet the stability requirement of control systems, even if the controller fails to support the control task.
Keywords
Network optimization; Wireless networks; Robustness; Critical control systems;
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Times Cited By KSCI : 2  (Citation Analysis)
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