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Sensor placement optimization for critical-grid coverage problem of indoor positioning

Author

Listed:
  • Hui Wu
  • Zhe Liu
  • Jin Hu
  • Weifeng Yin

Abstract

It is more practical and efficient to deploy sensors in critical areas rather than common areas to ensure indoor positioning accuracy and reduce deployment cost. This study focused on the sensor placement optimization for critical-grid coverage problem with two objectives: accuracy and cost. After reviewing some related works, this article proposed a multi-objective optimization model for critical-grid coverage problem of indoor positioning considering k -coverage problem as well as the topological rationality of sensor distribution. Then, NSGA-II algorithm was used to solve the optimizing model of sensor placement. At last, the simulation experiment and real environment validation were conducted for proposed method. The results showed that the optimized schemes obtain a lower error (1.13, 1.21 m) and a higher reduction of sensor deployment cost than the uniform deployment scheme (1.44 m). As a conclusion, the proposed method could reduce the cost of sensor deployment while ensuring the accuracy of indoor positioning for critical areas. It also provides a new direction for improving the accuracy of indoor positioning.

Suggested Citation

  • Hui Wu & Zhe Liu & Jin Hu & Weifeng Yin, 2020. "Sensor placement optimization for critical-grid coverage problem of indoor positioning," International Journal of Distributed Sensor Networks, , vol. 16(12), pages 15501477209, December.
    • Handle: RePEc:sae:intdis:v:16:y:2020:i:12:p:1550147720979922
    DOI: 10.1177/1550147720979922
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