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Sensors 2018, 18(2), 545; https://doi.org/10.3390/s18020545

Efficient Deployment of Key Nodes for Optimal Coverage of Industrial Mobile Wireless Networks

1
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
2
Super Micro Computer, Inc., San Jose 95131, CA, USA
3
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
*
Author to whom correspondence should be addressed.
Received: 22 December 2017 / Revised: 6 February 2018 / Accepted: 8 February 2018 / Published: 10 February 2018
(This article belongs to the Section Sensor Networks)
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Abstract

In recent years, industrial wireless networks (IWNs) have been transformed by the introduction of mobile nodes, and they now offer increased extensibility, mobility, and flexibility. Nevertheless, mobile nodes pose efficiency and reliability challenges. Efficient node deployment and management of channel interference directly affect network system performance, particularly for key node placement in clustered wireless networks. This study analyzes this system model, considering both industrial properties of wireless networks and their mobility. Then, static and mobile node coverage problems are unified and simplified to target coverage problems. We propose a novel strategy for the deployment of clustered heads in grouped industrial mobile wireless networks (IMWNs) based on the improved maximal clique model and the iterative computation of new candidate cluster head positions. The maximal cliques are obtained via a double-layer Tabu search. Each cluster head updates its new position via an improved virtual force while moving with full coverage to find the minimal inter-cluster interference. Finally, we develop a simulation environment. The simulation results, based on a performance comparison, show the efficacy of the proposed strategies and their superiority over current approaches. View Full-Text
Keywords: industrial wireless network; clustered network; maximal clique; deployment; reliability industrial wireless network; clustered network; maximal clique; deployment; reliability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Li, X.; Li, D.; Dong, Z.; Hu, Y.; Liu, C. Efficient Deployment of Key Nodes for Optimal Coverage of Industrial Mobile Wireless Networks. Sensors 2018, 18, 545.

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