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A Hierarchical Routing Graph for Supporting Mobile Devices in Industrial Wireless Sensor Networks.

Sangdae Kim1, Cheonyong Kim2, Hyunchong Cho3

  • 1Division of Computer Science and Engineering, Kongju National University, Cheonan 31080, Korea.

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Summary

Industrial Wireless Sensor Networks (IWSNs) face communication failures due to mobile devices. The Hierarchical Routing Graph Construction (HRGC) method improves reliability by creating a stable network structure for seamless mobile communication.

Keywords:
Industrial Wireless Sensor Networks (IWSNs)graph constructionmobility supportreal-timereliability

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Area of Science:

  • Computer Science
  • Network Engineering
  • Wireless Communication

Background:

  • Industrial Wireless Sensor Networks (IWSNs) require real-time and reliable communication for industrial applications.
  • Existing routing graph construction schemes fail to address the challenges posed by mobile devices in dynamic industrial environments.
  • Network topology changes caused by mobile devices disrupt established communication paths, leading to potential equipment malfunction.

Purpose of the Study:

  • To propose a novel Hierarchical Routing Graph Construction (HRGC) method to support mobile devices in IWSNs.
  • To ensure reliable and uninterrupted communication in industrial environments with moving devices.
  • To overcome the limitations of existing routing schemes that only consider static devices.

Main Methods:

  • The HRGC method employs a two-phase hierarchical graph construction approach.
  • Phase 1: Construction of a robust 'skeleton graph' using only static devices, ensuring stability against topology changes.
  • Phase 2: 'Grafting' mobile devices onto the skeleton graph to establish pre-defined routes for seamless communication.

Main Results:

  • The proposed HRGC method effectively handles network topology variations caused by mobile devices.
  • The skeleton graph provides a stable foundation, preventing route breaks and communication failures.
  • Simulation results demonstrate a significant improvement in the packet delivery ratio using the HRGC approach.

Conclusions:

  • HRGC offers a robust solution for reliable communication in industrial environments with mobile devices.
  • The hierarchical approach ensures seamless connectivity by pre-establishing routes for mobile nodes.
  • This method enhances the overall performance and dependability of Industrial Wireless Sensor Networks.