A node location method in wireless sensor networks based on a hybrid optimization algorithm

Jeng-Shyang Pan, Fang Fan, Shu-Chuan Chu, Zhigang Du, Huiqi Zhao

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
2 Downloads (Pure)


Wireless sensor networks (WSN) have gradually integrated into the concept of the Internet of Things (IoT) and become one of the key technologies. This paper studies the optimization algorithm in the field of artificial intelligence (AI) and effectively solves the problem of node location in WSN. Specifically, we propose a hybrid algorithm WOA-QT based on the whale optimization (WOA) and the quasi-affine transformation evolutionary (QUATRE) algorithm. It skillfully combines the strengths of the two algorithms, not only retaining the WOA's distinctive framework advantages but also having QUATRE's excellent coevolution ability. In order to further save optimization time, an auxiliary strategy for dynamically shrinking the search space (DSS) is introduced in the algorithm. To ensure the fairness of the evaluation, this paper selects 30 different types of benchmark functions and conducts experiments from multiple angles. The experiment results demonstrate that the optimization quality and efficiency of WOA-QT are very prominent. We use the proposed algorithm to optimize the weighted centroid location (WCL) algorithm based on received signal strength indication (RSSI) and obtain satisfactory positioning accuracy. This reflects the high value of the algorithm in practical applications.

Original languageEnglish
Article number8822651
Number of pages14
JournalWireless Communications and Mobile Computing
Publication statusPublished - 2020
Externally publishedYes


  • Wireless sensor networks (WSN)
  • Internet of Things (IoT)
  • artificial intelligence (AI)
  • whale optimization algorithm (WOA)
  • quasi-affine transformation evolutionary (QUATRE) algorithm
  • dynamically shrinking the search space (DSS)
  • weighted centroid location (WCL) algorithm
  • received signal strength indication (RSSI)
  • hybrid algorithm WOA-QT


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