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IoT Sensor Network Using ESPAR Antenna Based on Beam Scanning Method for Direction Finding.

Md Moklesur Rahman1, Heung-Gyoon Ryu1

  • 1Department of Electronic Engineering, Chungbuk National University, Cheongju 28644, Korea.

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|October 14, 2022
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Summary
This summary is machine-generated.

This study introduces an electronic steering parasitic array radiator (ESPAR) antenna and beam scanning method (BSM) to improve wireless sensor network (WSN) communication. These innovations enhance localization accuracy and extend the operating range for Internet of Things (IoT) devices.

Keywords:
BSMESPAR antennaIoTRSSSBSWSNdirection finding

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Area of Science:

  • Wireless Sensor Networks (WSNs)
  • Internet of Things (IoT)
  • Antenna Engineering
  • Signal Processing

Background:

  • Wireless sensor networks (WSNs) and IoT systems face significant challenges with communication interference and tag localization.
  • Achieving reliable long-distance communication and precise positioning in complex WSN environments remains a critical issue.

Purpose of the Study:

  • To propose and evaluate an electronic steering parasitic array radiator (ESPAR) antenna as a beamformer to mitigate interference and extend communication range in WSNs.
  • To introduce an efficient beam scanning method (BSM) for accurate tag direction finding and localization within IoT sensor networks.

Main Methods:

  • Utilized CST Studio to design ESPAR antennas and arrays for beamforming applications.
  • Developed and simulated a beam scanning method (BSM) in MATLAB for selective beam switching (SBS) and tag localization.
  • Evaluated antenna performance, including gain (8.17 dBi, 11.40 dBi) and radiation patterns.

Main Results:

  • The proposed BSM algorithm demonstrated an extended communication range of up to 25 meters in simulations.
  • ESPAR antennas achieved higher gain and directed radiation patterns, crucial for overcoming interference.
  • The BSM facilitates precise tag orientation determination, vital for maximizing communication range and accuracy.

Conclusions:

  • The integration of ESPAR antennas and BSM offers a robust solution for enhancing WSN performance, particularly in interference-prone environments.
  • This approach significantly improves localization accuracy and extends operational range, with potential applications in systems like IoT-based electrocardiogram monitoring.