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Mobile Information Systems
Volume 2017, Article ID 3680574, 10 pages
https://doi.org/10.1155/2017/3680574
Research Article

Determination of Collection Points for Disjoint Wireless Sensor Networks

1The School of Automation, Shenyang Aerospace University, Liaoning, China
2Yulin-to-Jinan Gas Pipeline, SINOPEC, Jinan, China
3The School of Information and Control Engineering, Liaoning Shihua University, Liaoning, China

Correspondence should be addressed to Jiangtao Cao; moc.621@puorgic

Received 27 March 2017; Revised 20 June 2017; Accepted 19 July 2017; Published 6 September 2017

Academic Editor: Javier Vales-Alonso

Copyright © 2017 Xiaofei Ji et al. 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.

Abstract

When the connection in Wireless Sensor Networks (WSNs) is broken, a subset of nodes which serve as the data collection points (CPs) can buffer the data from sensors and transfer these data to mobile data collectors (MDCs) to restore the connectivity of WSNs. One of the existing problems is how to decide the numbers and positions of CPs for obtaining an optimal path of MDC. In order to deal with this problem, a selection method of CPs is proposed to reduce the traveling distance of MDCs. Meanwhile, with this selection method, the changing rules and the stability of the path of MDC are theoretically proved. A 100-node WSN is implemented to test the proposed method. The evaluation results verify that the proposed method is efficient and valuable.