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Multi-IRS-Assisted mmWave UAV-BS Network for Coverage Extension.

Sota Yamamoto1, Jin Nakazato2, Gia Khanh Tran1

  • 1Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan.

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Summary
This summary is machine-generated.

Intelligent reflective surfaces (IRSs) enhance millimeter wave (mmWave) communication for unmanned aerial vehicles (UAVs) in Beyond 5G/6G networks. This integration boosts high-definition video transmission and extends network coverage in urban environments.

Keywords:
IRSIndustry 5.0UAV cellular networkscoverage extensiondigital twinmillimeter wave

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Area of Science:

  • Telecommunications Engineering
  • Wireless Communication Systems
  • Network Optimization

Background:

  • Industry 5.0 relies on AI, IoT, and big data for economic growth and societal solutions.
  • Digital twin technology and Unmanned Aerial Vehicles (UAVs) are key components of this transition.
  • Existing UAV networks face bandwidth limitations, hindering high-definition data transmission in nonterrestrial networks (NTNs).

Purpose of the Study:

  • To address bandwidth limitations in UAV networks by integrating millimeter wave (mmWave) technology.
  • To enhance high-speed communication coverage in Beyond 5G/6G networks using Intelligent Reflective Surfaces (IRSs) and UAVs.
  • To ensure virtual line-of-sight (LoS) conditions crucial for mmWave communication.

Main Methods:

  • Integration of IRSs with UAV networks for mmWave communication.
  • Development of an IRS selection method for optimizing communication paths between UAVs and User Equipment (UE).
  • Numerical analysis conducted in a 3D urban environment model.

Main Results:

  • Significant improvements in received Signal-to-Noise Ratio (SNR) for multiple UEs were observed with IRS integration.
  • Demonstrated feasibility of extending coverage for mmWave UAV networks.
  • Validated the proposed approach through realistic 3D urban environment simulations.

Conclusions:

  • The proposed IRS-integrated mmWave UAV network approach effectively enhances communication coverage and performance.
  • IRS selection is crucial for optimizing connectivity in Beyond 5G/6G networks.
  • This technology offers a viable solution for high-definition video transmission and expanded network reach in urban settings.