Experimental Evaluation of Multi-Antenna Receivers for UAV Communication in Live LTE Networks

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI:10.1109/GLOCOMW.2018.8644068

T. Izydorczyk, M. Bucur, Fernando M. L. Tavares, Gilberto Berardinelli, P. Mogensen

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引用次数: 14

Abstract

Unmanned Aerial Vehicle (UAV) communication is known to suffer from significant interference due to the clearance of the radio paths with ground base stations. Multi-antenna receive combining has the promise of alleviating the impact of interference, translating to improved connectivity performance. In this paper, we evaluate the performance of Conventional Beamforming (CB) and Maximum Ratio Combining (MRC) receivers for UAV communication based on live Long Term Evolution (LTE) networks. Our measurement setup consists of nine Universal Software Radio Peripheral (USRP) boards and a circular antenna array with sixteen elements. The LTE signals are recorded at different UAV flight heights in urban environments, and processed offline. Results show similar Signal-to-Interference-plus-Noise Ratio (SINR) performance by MRC and CB, with CB slightly outperforming MRC provided knowledge of LTE signal structure is used for the beam selection. No significant dependency from the flight height has been observed. The outage probability analysis further emphasizes the benefits of using CB in the studied scenarios.

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实时LTE网络中无人机通信多天线接收机的实验评估

无人驾驶飞行器(UAV)通信由于与地面基站的无线电路径的间隙而遭受重大干扰。多天线接收组合有望减轻干扰的影响，转化为改进的连接性能。在本文中，我们评估了传统波束成形(CB)和最大比组合(MRC)接收机在基于实时长期演进(LTE)网络的无人机通信中的性能。我们的测量装置由9个通用软件无线电外设(USRP)板和一个带有16个元件的圆形天线阵列组成。LTE信号被记录在城市环境中不同的无人机飞行高度，并离线处理。结果表明，MRC和CB的信噪比(SINR)性能相似，如果将LTE信号结构的知识用于波束选择，则CB的性能略优于MRC。未观察到与飞行高度有显著相关性。中断概率分析进一步强调了在所研究的场景中使用CB的好处。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE Globecom Workshops (GC Wkshps)

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