4.6 Article

Unmanned Aerial Vehicle Propagation Channel over Vegetation and Lake Areas: First- and Second-Order Statistical Analysis

Journal

SENSORS
Volume 22, Issue 1, Pages -

Publisher

MDPI
DOI: 10.3390/s22010065

Keywords

UAV; channel; fading; Doppler; multipath; shadowing

Funding

  1. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES) [001]

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This paper presents a measurement setup using an unmanned aircraft to acquire data for the characterization of the radio frequency channel. It identifies the communication channel model, characterizes the effects of large-scale and small-scale fading, and estimates the aircraft speed from the identified Doppler frequency.
The use of unmanned aerial vehicles (UAV) to provide services such as the Internet, goods delivery, and air taxis has become a reality in recent years. The use of these aircraft requires a secure communication between the control station and the UAV, which demands the characterization of the communication channel. This paper aims to present a measurement setup using an unmanned aircraft to acquire data for the characterization of the radio frequency channel in a propagation environment with particular vegetation (Caatinga) and a lake. This paper presents the following contributions: identification of the communication channel model that best describes the characteristics of communication; characterization of the effects of large-scale fading, such as path loss and log-normal shadowing; characterization of small-scale fading (multipath and Doppler); and estimation of the aircraft speed from the identified Doppler frequency.

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