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Published on: November 26, 2019
Performance analysis of UAV-assisted coverage for cell edge.
1School of Airspace Science and Engineering, Shandong University, Shandong, China.
Plos One
|May 14, 2026
Summary
Unmanned aerial vehicles (UAVs) enhance wireless coverage for cell-edge users by creating a surround-enhancement strategy. This approach optimizes UAV flight altitude and coverage division with ground base stations (GBSs) for better spectrum efficiency.
Area of Science:
- Wireless communication networks
- Aerial robotics and communication systems
Background:
- Traditional ground base stations (GBSs) face limitations in providing reliable wireless connectivity, especially for cell-edge users.
- Unmanned aerial vehicles (UAVs) offer rapid and flexible deployment for emergency wireless communication.
Purpose of the Study:
- To investigate a UAV-assisted surround-enhancement coverage strategy to improve wireless connectivity for cell-edge users.
- To analyze spectrum utilization efficiency and interference between UAVs and GBSs under a spectrum-sharing framework.
Main Methods:
- Partitioning the original cell into two service regions supported by a GBS and a UAV.
- Modeling user distribution as a homogeneous Poisson point process.
- Random channel allocation by both GBS and UAV to their users.
Main Results:
- The UAV-assisted scheme demonstrates an optimal surround radius and flight altitude.
- A balanced division of coverage between GBS and UAV maximizes their respective capabilities.
- Improved spectrum utilization efficiency through interference analysis.
Conclusions:
- UAV-assisted surround-enhancement is an effective strategy for improving wireless coverage, particularly for cell-edge users.
- Optimizing UAV parameters and coverage division is crucial for leveraging the full potential of hybrid GBS-UAV networks.
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