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Path Loss Investigation in Hall Environment at Centimeter and Millimeter-Wave Bands.

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Summary

This study evaluated path loss models in a university hall for millimeter-wave (mmWave) 5G networks. The floating-intercept model effectively fits path loss data in both central and wall-side links.

Keywords:
5Ghallindoorinterferencepath losswave propagationwireless communication

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Area of Science:

  • Wireless communication
  • Radio wave propagation
  • 5G mobile networks

Background:

  • Millimeter-wave (mmWave) frequencies offer vast spectrum for 5G, but face high transmission attenuation.
  • Accurate path loss models are crucial for optimizing power in mmWave systems.
  • Limited research exists on mmWave path loss in specific indoor environments like university halls.

Purpose of the Study:

  • Investigate large-scale path loss models for mmWave and centimeter-level bands in a university hall.
  • Address the research gap concerning path loss characteristics in this specific environment.
  • Evaluate model performance for line-of-sight (LOS) links using directional antennas.

Main Methods:

  • Collected real-measured path loss data in a university hall environment.
  • Utilized directional horn antennas (co-polarization H-H) and tracking antenna systems (TAS).
  • Focused on line-of-sight (LOS) conditions at mmWave and centimeter-level frequencies.

Main Results:

  • The large-scale floating-intercept (FI) model demonstrated satisfactory performance.
  • The FI model effectively fit path loss data across different locations within the hall.
  • Performance was consistent for both center and wall-side links.

Conclusions:

  • The floating-intercept model is suitable for characterizing mmWave path loss in university hall environments.
  • This research provides valuable insights for optimizing 5G network deployment in similar settings.
  • Accurate path loss modeling aids in efficient power management for mmWave communications.