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Performance Analysis of Mobile Cellular-Connected Drones under Practical Antenna Configurations
[article]
2020
arXiv
pre-print
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Providing seamless connectivity to unmanned aerial vehicle user equipments (UAV-UEs) is very challenging due to the encountered line-of-sight interference and reduced gains of down-tilted base station ...
In this paper, the performance of cellular-connected UAV-UEs is studied under 3D practical antenna configurations. ...
Antenna Model The ground BSs are equipped with directional antennas of fixed radiation patterns and with a down-tilt angle ϕ. ...
arXiv:2002.00294v1
fatcat:5uz4xnlvgfejlnvigknes5brmi
A Survey on Cellular-connected UAVs: Design Challenges, Enabling 5G/B5G Innovations, and Experimental Advancements
[article]
2020
arXiv
pre-print
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cellular networks. ...
The UAV ecosystem can benefit from existing 5G/B5G cellular networks, which can be exploited in different ways to enhance UAV communications. ...
pattern is illustrated for a synchronized uniform linear antenna array (ULA) with 10 co-polarized dipole antenna elements and BS down-tilt angle = −10°. ...
arXiv:2005.00781v1
fatcat:gnjjupum7zh25kwaetdtxzidja
A Survey on Millimeter-Wave Beamforming Enabled UAV Communications and Networking
[article]
2021
arXiv
pre-print
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Subsequently, the technologies and solutions for UAV-connected mmWave cellular networks and mmWave-UAV ad hoc networks are reviewed, respectively. ...
On the other hand, UAVs serving as aerial access points or relays can significantly enhance the coverage and quality of service of the terrestrial mmWave cellular networks. ...
Third, the UAVs may act as aerial UEs and be served by ground BSs, where the IRSs can be leveraged to improve the signal strength received at UAVs caused by the down-tilt of BS antennas [89] . ...
arXiv:2104.09204v2
fatcat:rbywt5p7uzhhzg3hbc7tnln45q
Accessing From The Sky: A Tutorial on UAV Communications for 5G and Beyond
[article]
2019
arXiv
pre-print
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and future cellular networks. ...
(QoS) requirements for UAV control messages versus payload data, the stringent constraints imposed by the size, weight and power (SWAP) limitations of UAVs, as well as the exploitation of the new design ...
To achieve antenna downtilt radiation pattern with downtilt angle θ tilt , where θ tilt is defined relative to the horizontal plane of the BS site, a fixed phase shift is applied for each vertical antenna ...
arXiv:1903.05289v2
fatcat:tvwlivdxpra6rebdvikbrrczmm
A Survey of Channel Modeling for UAV Communications
2018
IEEE Communications Surveys and Tutorials
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ACKNOWLEDGMENT We would like to thank Dr Richard Staunton for reading our manuscript and correcting typographical errors. ...
Cellular networks are not designed to provide AG propagation above the base station height due to the down-tilted sector antennas which can hinder wireless connectivity and cause significant reduction ...
The worst case scenario was reported due to the radiation pattern of the down-tilted base station antenna for a UAV altitude between 5 to 7 m. ...
doi:10.1109/comst.2018.2856587
fatcat:uvxhrptp5vfb5dtoe64hpuz4ua
Communication and networking technologies for UAVs: A survey
[article]
2020
arXiv
pre-print
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Moreover, applications of UAV networks for different contextual uses ranging from navigation to surveillance, URLLC (Ultra reliable and low latency communications), edge computing and work related to artificial ...
In particular, the intricate interplay between UAV, advanced cellular communication, and internet of things constitutes one of the focal points of this paper. ...
-Directional Antennas of Cellular-connected UAVs In this scenario, UAVs are assumed to be equipped with directional antennas instead of omnidirectional antennas. ...
arXiv:2009.02280v1
fatcat:fx7hr332qbbfble6rbyuxirrn4
A Survey on Spectrum Management for Unmanned Aerial Vehicles (UAVs)
2021
IEEE Access
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Existing surveys mostly focus on UAV applications, channel models, and security challenges, with a lack of studies on spectrum management in the context of UAV networks. ...
This motivates the need to revisit existing approaches and identify suitable schemes that allow for the rapid integration of UAVs with existing wireless technologies. ...
First is the uplink interference, where low altitude UAVs can suffer from leaked radio signals transmitted by ground base stations, i.e., antenna down-tilting includes undesired sidelobes in the boresight ...
doi:10.1109/access.2021.3138048
fatcat:2h5ls7ywo5g3bbz454gqatvkw4
GPS'siz Ortamlarda Kendini Onaran Ağ Mimarisi Kullanan Sürü Uçuşunun Web Tabanlı Kontrolü
2020
Deu Muhendislik Fakultesi Fen ve Muhendislik
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To solve and to improve for a UAV is one problem; extending it to multiple UAVs is another problem. We study and develop a framework for multiple UAVs to command and control from web-based front-end. ...
Unmanned aerial vehicles (UAVs) become very popular in the last years with the help of increasing computing power per area and per cost. ...
To maintain a strong link between controller and UAV, redundancy techniques, high transmission power antenna, cellular, or satellite communications may be used [10] . ...
doi:10.21205/deufmd.2020226528
fatcat:r54wntnqnrgyjpxif3nwoeu2mu
Surveying pervasive public safety communication technologies in the context of terrorist attacks
2020
Physical Communication
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not designed and are not able to deal with the challenges of unpredictable emergency scenarios like terrorist attacks. ...
not designed to cope with disasters such as terrorist attacks, consequently leading to long delays and intolerable response times. ...
of the array, causing the necessity of managing beam steering, coordinates, and antenna mechanical tilt accordingly. ...
doi:10.1016/j.phycom.2020.101109
fatcat:s74tzgwo6rfmbjyfqnytrdxece
A Survey on Energy Optimization Techniques in UAV-Based Cellular Networks: From Conventional to Machine Learning Approaches
[article]
2022
arXiv
pre-print
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Albeit many competent technologies for capacity enhancement purposes, such as millimeter wave communications and network densification, there is still room and need for further capacity enhancement in ...
wireless communication networks, especially for the cases of unusual people gatherings, such as sport competitions, musical concerts, etc. ...
His research interests include intelligent networking for wireless communication networks, with a focus on energy efficiency, mobility management, and radio resource management in cellular networks. ...
arXiv:2204.07967v1
fatcat:2x7dyojlvjfknibfsliiq4ozw4
SDQIM: Software-Defined Quadcopter Interdomain Management Protocol With Decentralized Inductive Power Transfer (DIPT) Platform
2019
IEEE Internet of Things Journal
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cellular coverage network. ...
Formerly, we designed a novel software-defined quadcopter (SDQ) with mobile IoT vehicle [1] to measure the best efficient wind power location for effective future wind turbine placement. ...
Nonetheless, researchers have been implementing new ideas to expand the scalability of the UAV or quadcopter network. ...
doi:10.1109/jiot.2018.2882897
fatcat:qwh4kifr5bhyfp3sg3t3fiw3hm
A Review of AI-enabled Routing Protocols for UAV Networks: Trends, Challenges, and Future Outlook
[article]
2021
arXiv
pre-print
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This paper reviews AI-enabled routing protocols designed primarily for aerial networks, including topology-predictive and self-adaptive learning-based routing algorithms, with an emphasis on accommodating ...
We also address, with an AI emphasis, the closely related topics of mobility and networking models for UAV networks, simulation tools and public datasets, and relations to UAV swarming, which serve to ...
Some of the challenges brought by the futuristic concept of connected sky include high mobility, interference, and connection to down-tilted antennas. ...
arXiv:2104.01283v2
fatcat:p2vgtckponfm5flwz4dscf7dju
Machine Learning-Based Load Balancing Algorithms in Future Heterogeneous Networks: A Survey
2022
IEEE Access
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The massive growth of mobile users and the essential need for high communication service quality necessitate the deployment of ultra-dense heterogeneous networks (HetNets) consisting of macro, micro, pico ...
This leads to the pressing need to balance loads between cells, especially with the random distribution of users in numerous mobility directions. ...
In this case, Cell A's antenna is tilted down, reducing the coverage area, as shown in Figure 4 . ...
doi:10.1109/access.2022.3161511
fatcat:qwoleicktbebripkg3g4v3y3qa
Modifying a scientific flight control system for balloon launched UAV missions
2015
2015 IEEE Aerospace Conference
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To gain operational experience in high altitude flying and for system and payload testing, a balloon launched small UAV (sub 10kg) system was designed including building an optimized airframe. ...
In this paper we present our work on enabling Balloon launched high altitude UAV Missions for an autopilot system previously used only at lower levels in visual line of sight conditions. ...
ACKNOWLEDGMENTS The authors thank SSC and DLR Moraba for supporting this project. ...
doi:10.1109/aero.2015.7119055
fatcat:hwuqdqhaoffhlgubdduxhaukje
Non-terrestrial Communications Assisted by Reconfigurable Intelligent Surfaces
[article]
2021
arXiv
pre-print
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This kind of network can support high data rate communications among aerial platforms (i.e., unmanned aerial vehicles (UAVs), high-altitude platforms (HAPs), and satellites) and cellular networks, achieving ...
Non-terrestrial communications have emerged as a key enabler for seamless connectivity in the upcoming generation networks. ...
As ground base station antennas are down tilted, UAVs flying above gBS are only supported through side lobes resulting in the UAVs receiving low received powers. ...
arXiv:2109.00876v1
fatcat:gukzusg4rzeevcfzdl2ff7yxdm
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