Cross-Correlation Characteristic Measurements and Analysis for Multi-Link A2G Channels Based on a Multi-UAV System

Xuchao Ye; Qiuming Zhu; Hangang Li; Kai Mao; Hanpeng Li; Xiaomin Chen; Boyu Hua; Weizhi Zhong

doi:10.3390/drones8080416

Drones (Aug 2024)

Cross-Correlation Characteristic Measurements and Analysis for Multi-Link A2G Channels Based on a Multi-UAV System

Xuchao Ye,
Qiuming Zhu,
Hangang Li,
Kai Mao,
Hanpeng Li,
Xiaomin Chen,
Boyu Hua,
Weizhi Zhong

Affiliations

Xuchao Ye: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Qiuming Zhu: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Hangang Li: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Kai Mao: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Hanpeng Li: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Xiaomin Chen: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Boyu Hua: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Weizhi Zhong: The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

DOI: https://doi.org/10.3390/drones8080416
Journal volume & issue: Vol. 8, no. 8
p. 416

Abstract

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With the rapid development of unmanned aerial vehicles (UAVs), UAV-based communications have shown promising application prospects in beyond-fifth-generation (B5G) and sixth-generation (6G) communication. Air-to-ground (A2G) channel characteristics are significant for UAV-based wireless communications. In this paper, a multi-UAV channel measurement system is developed, which can realize cooperative, accurate, and real-time channel measurements. Measurement campaigns are performed in the campus scenario at the 3.6 GHz frequency band. Based on the measurement data, cross-correlation properties of some typical large-scale channel parameters are extracted and analyzed, including the power delay profile (PDP), path loss (PL), and shadow fading (SF). The analysis results reveal that the cross-correlation of PDP remains larger than 0.6 during the whole measurement, and the decorrelation distance is 14.765 m. The cross-correlation of SF is relatively low, and the decorrelation distance is found to be 4.628 m. These results can provide valuable references for optimizing multi-link UAV communications and node placements.

Published in Drones

ISSN: 2504-446X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Motor vehicles. Aeronautics. Astronautics
Website: http://www.mdpi.com/journal/drones

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