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Performance Analysis of Mobile Cellular-Connected Drones under Practical Antenna Configurations [article]

Ramy Amer and Walid Saad and Boris Galkin and Nicola Marchetti
2020 arXiv   pre-print
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]

Debashisha Mishra, Enrico Natalizio
2020 arXiv   pre-print
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]

Zhenyu Xiao, Lipeng Zhu, Yanming Liu, Pengfei Yi, Rui Zhang, Xiang-Gen Xia, Robert Schober
2021 arXiv   pre-print
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]

Yong Zeng, Qingqing Wu, Rui Zhang
2019 arXiv   pre-print
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

Aziz Altaf Khuwaja, Yunfei Chen, Nan Zhao, Mohamed-Slim Alouini, Paul Dobbins
2018 IEEE Communications Surveys and Tutorials  
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]

Abhishek Sharma, Pankhuri Vanjani, Nikhil Paliwal, Chathuranga M.Wijerathna Basnayaka, Dushantha Nalin K. Jayakody, Hwang-Cheng Wang, P. Muthuchidambaranathane
2020 arXiv   pre-print
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)

Mohammed A. Jasim, Hazim Shakhatreh, Nazli Siasi, Ahmad Sawalmeh, Adel Aldalbahi, Ala Al-Fuqaha
2021 IEEE Access  
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  
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

Ali Masood, Davide Scazzoli, Navuday Sharma, Yannick Le Moullec, Rizwan Ahmad, Luca Reggiani, Maurizio Magarini, Muhammad Mahtab Alam
2020 Physical Communication  
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]

Attai Ibrahim Abubakar, Iftikhar Ahmad, Kenechi G. Omeke, Metin Ozturk, Cihat Ozturk, Ali Makine Abdel-Salam, Michael S. Mollel, Qammer H. Abbasi, Sajjad Hussain, Muhammad Ali Imran
2022 arXiv   pre-print
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

Ammar K. Al Mhdawi, Hamed S. Al-Raweshidy
2019 IEEE Internet of Things Journal  
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]

Arnau Rovira-Sugranes, Abolfazl Razi, Fatemeh Afghah, Jacob Chakareski
2021 arXiv   pre-print
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

Emre Gures, Ibraheem Shayea, Mustafa Ergen, Marwan Hadri Azmi, Ayman A. El-Saleh
2022 IEEE Access  
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

Marc Schwarzbach, Sven Wlach, Maximilian Laiacker
2015 2015 IEEE Aerospace Conference  
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]

Jia Ye, Jingping Qiao, Abla Kammoun, Mohamed-Slim Alouini
2021 arXiv   pre-print
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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