Millimeter-wave UAV-based Channel Measurement Setup

Semkin, Vasilii; Huhtinen, Ismo

doi:10.1109/vtc2021-spring51267.2021.9448737

Cited by 5 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our setup was developed at VTT, Finland. 2 The measurements were conducted at 28 GHz by a system composed of two separate nodes: (i) the transmitter, positioned on the ground, and (ii) the receiver, mounted on the UAV [21]. The tests were conducted at the Nummela airport, in Finland.…”

Section: Measurement Equipmentmentioning

confidence: 99%

Lightweight UAV-based Measurement System for Air-to-Ground Channels at 28 GHz

Semkin

Kang²,

Haarla

et al. 2021

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

Self Cite

View full text Add to dashboard Cite

Wireless communication at millimeter wave frequencies has attracted considerable attention for the delivery of high-bit-rate connectivity to unmanned aerial vehicles (UAVs). However, conducting the channel measurements necessary to assess communication at these frequencies has been challenging due to the severe payload and power restrictions in commercial UAVs. This work presents a novel lightweight (approximately 1.3 kg) channel measurement system at 28 GHz installed on a commercially available UAV. A ground transmitter equipped with a horn antenna conveys sounding signals to a UAV equipped with a lightweight spectrum analyzer. We demonstrate that the measurements can be highly influenced by the antenna pattern as shaped by the UAV's frame. A calibration procedure is presented to correct for the resulting angular variations in antenna gain. The measurement setup is then validated on real flights from an airstrip at distances in excess of 300m.

show abstract

Section: Measurement Equipmentmentioning

confidence: 99%

Lightweight UAV-based Measurement System for Air-to-Ground Channels at 28 GHz

Semkin

Kang²,

Haarla

et al. 2021

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

Self Cite

View full text Add to dashboard Cite

show abstract

“…There is also concern about the depletion of frequency resources, necessitating new research on frequency sharing and the development of higher frequency bands. Although there have been studies on building UAV-based networks using mmWave technology, these have been limited to theoretical studies based on simulations [37,38].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, understanding radio propagation characteristics in the airspace domain is essential for the efficient use and development of air-to-ground mobile communication systems in the future. However, to the authors' best knowledge, there are only a few studies focusing on the use of the mmWave frequency band for low-altitude platforms such as UAVs [37].…”

Section: Introductionmentioning

confidence: 99%

The Future of Flying Base Stations: Empirical and Numerical Investigations of mmWave-Enabled UAVs

Masaoka,

Tran,

Nakazato

et al. 2023

Future Internet

View full text Add to dashboard Cite

Nowadays, wireless communications are ubiquitously available. However, as pervasive as this technology is, there are distinct situations, such as during substantial public events, catastrophic disasters, or unexpected malfunctions of base stations (BSs), where the reliability of these communications might be jeopardized. Such scenarios highlight the vulnerabilities inherent in our current infrastructure. As a result, there is growing interest in establishing temporary networks that offer high-capacity communications and can adaptively shift service locations. To address this gap, this paper investigates the promising avenue of merging two powerful technologies: Unmanned Aerial Vehicles (UAVs) and millimeter-wave (mmWave) transmissions. UAVs, with their ability to be operated remotely and to take flight without being constrained by terrestrial limitations, present a compelling case for being the cellular BSs of the future. When integrated with the high-speed data transfer capabilities of mmWave technology, the potential is boundless. We embark on a hands-on approach to provide a tangible foundation for our hypothesis. We carry out comprehensive experiments using an actual UAV equipped with an mmWave device. Our main objective is to meticulously study its radio wave propagation attributes when the UAVs are in flight mode. The insights gleaned from this hands-on experimentation are profound. We contrast our experimental findings with a rigorous numerical analysis to refine our understanding. This comparative study aimed to shed light on the intricacies of wave propagation behaviors within the vast expanse of the atmosphere.

show abstract