Abstract
Unmanned aerial vehicle (UAV) communications can provide high capacity, long transmission distance, and large coverage range in the future air-to-ground networks. Due to the mobility, the target coverage area of a UAV may change frequently, which requires flexible beamforming. Thus, millimeter-wave (mmWave) beamforming with a phased-array is preferred in UAV communications due to the small size and power efficiency. In this letter, we explore 3-D beamforming for mmWave UAV communications with a phased uniform planar array. To realize a flexible coverage, we first take the coordinate transformation of a target area and obtain a minimum rectangular which can cover the target area. Then, we use the subarray technique to design a wide beam to cover the rectangular. Simulation results show that the proposed approach can achieve flexible beam coverage for any type of target area, and the beamforming gain is mainly concentrated in the target coverage area.
| Original language | English |
|---|---|
| Article number | 8627376 |
| Pages (from-to) | 837-840 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 8 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Jun 2019 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- 3D beamforming
- flexible coverage
- mmWave communications
- UAV
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