Angle-of-Arrival Estimation in Large-Scale Hybrid Antenna Arrays
- Publisher:
- Wiley-IEEE Press
- Publication Type:
- Chapter
- Citation:
- Antenna and Array Technologies for Future Wireless Ecosystems, 2022, pp. 305-334
- Issue Date:
- 2022-08-02
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| 20502237_10263903720005671.pdf | Published version | 3.7 MB |
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Large-scale hybrid antenna arrays are able to leverage array gains, transceiver sizes, and costs for massive multiple-input-multiple-output (MIMO) communications in the millimeter-wave and terahertz frequency bands. However, challenges of effectively applying such arrays arise from the estimation of the angle-of-arrival (AoA). In this chapter, we first review several important applications of large-scale antenna arrays in the fifth-generation (5G) and beyond 5G (B5G) communications systems. Several popular hybrid structures of large-scale arrays are then outlined. Next, we highlight the importance and challenges of the AoA estimation in large-scale hybrid arrays and their applications, along with an overview of existing estimation methods. Finally, some recent breakthroughs on fast and accurate AoA estimation are introduced, unveiling some interesting properties/rules for different types of hybrid arrays.
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