scholarly journals Wireless communications with unmanned aerial vehicles: opportunities and challenges

2016 ◽  
Vol 54 (5) ◽  
pp. 36-42 ◽  
Author(s):  
Yong Zeng ◽  
Rui Zhang ◽  
Teng Joon Lim
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Aerial Vehicles

Wireless communications, networking, and positioning with unmanned aerial vehicles [Guest Editorial]

2016 ◽  
Vol 54 (5) ◽  
pp. 24-25 ◽  
Author(s):  
Ismail Guvenc ◽  
Walid Saad ◽  
Mehdi Bennis ◽  
Christian Wietfeld ◽  
Ming Ding ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Guest Editorial ◽  
Aerial Vehicles

Wireless Communications and Networking for Unmanned Aerial Vehicles

2020 ◽  
Author(s):  
Walid Saad ◽  
Mehdi Bennis ◽  
Mohammad Mozaffari ◽  
Xingqin Lin
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Aerial Vehicles

scholarly journals A Distributed Approach for Collision Avoidance between Multirotor UAVs Following Planned Missions

Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2404 ◽  
Author(s):  
Francisco Fabra ◽  
Willian Zamora ◽  
Julio Sangüesa ◽  
Carlos T. Calafate ◽  
Juan-Carlos Cano ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Collision Avoidance ◽  
Distributed Approach ◽  
Aerial Vehicles ◽  
Potential Applications ◽  
Simulation Results

As the number of potential applications for Unmanned Aerial Vehicles (UAVs) keeps rising steadily, the chances that these devices get close to each other during their flights also increases, causing concerns regarding potential collisions. This paper proposed the Mission Based Collision Avoidance Protocol (MBCAP), a novel UAV collision avoidance protocol applicable to all types of multicopters flying autonomously. It relies on wireless communications in order to detect nearby UAVs, and to negotiate the procedure to avoid any potential collision. Experimental and simulation results demonstrated the validity and effectiveness of the proposed solution, which typically introduces a small overhead in the range of 15 to 42 s for each risky situation successfully handled.

scholarly journals From the early days of 962 unmanned aerial vehicles (UAVs) to their integration into wireless networks

2021 ◽  
Vol 69 (4) ◽  
pp. 941-962
Author(s):  
Zoran Miličević ◽  
Zoran Bojković
Keyword(s):  
Energy Efficiency ◽  
Wireless Networks ◽  
Wireless Communications ◽  
Wireless Communication ◽  
Unmanned Aerial Vehicles ◽  
Communication Networks ◽  
Wireless Communication Networks ◽  
5G Networks ◽  
Aerial Vehicles ◽  
Key Technologies

Introduction/purpose: This paper provides an overview of Unmanned Aerial Vehicles (UAVs) from their early days to their integration into modern wireless networks. Methods: It analyzes, synthesizes and compares the UAVs development technologies throughout their history with significant aspects of their integration in wireless communication networks. Results: Important aspects of wireless communications as one of the key technologies for UAVs are presented. Next, energy efficiency as a research path for UAVs is considered. The paper also emphasizes the present state in this area as well as what the future of UAVs in communications will be. Conclusion: UAVs are important not only for widespread military usage in various combat operations and warfare environment, but also for other purposes such as their integration in 5G networks.

scholarly journals Multiple Unmanned Aerial Vehicles Deployment and User Pairing for Non-Orthogonal Multiple Access Schemes

2020 ◽  
Author(s):  
Jie Wang ◽  
Miao Liu ◽  
Jinlong Sun ◽  
Guan Gui ◽  
Haris Gacanin ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Message Passing ◽  
Multiple Access ◽  
Base Station ◽  
Spectrum Efficiency ◽  
User Pairing ◽  
Aerial Vehicles ◽  
Multiple Uavs ◽  
Multiple Unmanned Aerial Vehicles

Non-orthogonal multiple access (NOMA) significantly improves the connectivity opportunities and enhances the spectrum efficiency (SE) in the fifth generation and beyond (B5G) wireless communications. Meanwhile, emerging B5G services demand of higher SE in the NOMA based wireless communications. However, traditional ground-to-ground (G2G) communications are hard to satisfy these demands, especially for the cellular uplinks. To solve these challenges, this paper proposes a multiple unmanned aerial vehicles (UAVs) aided uplink NOMA method. In detail, multiple hovering UAVs relay data for a part of ground users (GUs) and share the sub-channels with the left GUs that communicate with the base station (BS) directly. Furthermore, this paper proposes a K-means clustering based UAV deployment and location based user pairing scheme to optimize the transceiver association for the multiple UAVs aided NOMA uplinks. Finally, a sum power minimization based resource allocation problem is formulated with the lowest quality of service (QoS) constraints. We solve it with the message-passing algorithm and evaluate the superior performances of the proposed scheduling and paring schemes on SE and energy efficiency (EE). Extensive experiments are conducted to compare the performances of the proposed schemes with those of the single UAV aided NOMA uplinks, G2G based NOMA uplinks, and the proposed multiple UAVs aided uplinks with a random UAV deployment. Simulation results demonstrate that the proposed multiple UAVs deployment and user pairing based NOMA scheme significantly improves the EE and the SE of the cellular uplinks at the cost of only a little relaying power consumption of the UAVs.

scholarly journals Game-Theoretic Approaches for Wireless Communications with Unmanned Aerial Vehicles

2018 ◽  
Vol 25 (6) ◽  
pp. 104-112 ◽  
Author(s):  
Mbazingwa E. Mkiramweni ◽  
Chungang Yang ◽  
Jiandong Li ◽  
Zhu Han
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Aerial Vehicles ◽  
Game Theoretic

scholarly journals Multiple Unmanned Aerial Vehicles Deployment and User Pairing for Non-Orthogonal Multiple Access Schemes

2020 ◽  
Author(s):  
Jie Wang ◽  
Miao Liu ◽  
Jinlong Sun ◽  
Guan Gui ◽  
Haris Gacanin ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Message Passing ◽  
Multiple Access ◽  
Base Station ◽  
Spectrum Efficiency ◽  
User Pairing ◽  
Aerial Vehicles ◽  
Multiple Uavs ◽  
Multiple Unmanned Aerial Vehicles

Non-orthogonal multiple access (NOMA) significantly improves the connectivity opportunities and enhances the spectrum efficiency (SE) in the fifth generation and beyond (B5G) wireless communications. Meanwhile, emerging B5G services demand of higher SE in the NOMA based wireless communications. However, traditional ground-to-ground (G2G) communications are hard to satisfy these demands, especially for the cellular uplinks. To solve these challenges, this paper proposes a multiple unmanned aerial vehicles (UAVs) aided uplink NOMA method. In detail, multiple hovering UAVs relay data for a part of ground users (GUs) and share the sub-channels with the left GUs that communicate with the base station (BS) directly. Furthermore, this paper proposes a K-means clustering based UAV deployment and location based user pairing scheme to optimize the transceiver association for the multiple UAVs aided NOMA uplinks. Finally, a sum power minimization based resource allocation problem is formulated with the lowest quality of service (QoS) constraints. We solve it with the message-passing algorithm and evaluate the superior performances of the proposed scheduling and paring schemes on SE and energy efficiency (EE). Extensive experiments are conducted to compare the performances of the proposed schemes with those of the single UAV aided NOMA uplinks, G2G based NOMA uplinks, and the proposed multiple UAVs aided uplinks with a random UAV deployment. Simulation results demonstrate that the proposed multiple UAVs deployment and user pairing based NOMA scheme significantly improves the EE and the SE of the cellular uplinks at the cost of only a little relaying power consumption of the UAVs.

Antenna for Wireless Communications on Unmanned Aerial Vehicles

2012 ◽  
Vol 241-244 ◽  
pp. 2487-2490
Author(s):  
Xing Long Guo ◽  
H. B. Ji ◽  
H.H. Yin ◽  
J. Huang
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Microstrip Patch Antenna ◽  
Circularly Polarized ◽  
Antenna Size ◽  
Microstrip Patch ◽  
Aerial Vehicles ◽  
Half Power

A compact circularly polarized microstrip patch antenna was designed and fabricated based on the virtual load and limited airframe size of Unmanned Aerial Vehicles (UAV) applications. This antenna is used for ISM frequency band and to enhance the integration of sensors and circuits in UAV communication system. The paper presented the simulation and the measured results. This antenna Experimental results show the 3dB axial ratio bandwidth is 0.6%, the half power beamwidth is ±45º, and the gain is 4.5dBi. The antenna size reduction can be as large as 36%, as compared to that of the conventional CP design.

scholarly journals Enabling Reliable UAV Control by Utilizing Multiple Protocols and Paths for Transmitting Duplicated Control Packets

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3295
Author(s):  
Woonghee Lee
Keyword(s):  
Wireless Communications ◽  
Unmanned Aerial Vehicles ◽  
Control Packet ◽  
Data Packets ◽  
Transfer Delay ◽  
Aerial Vehicles ◽  
Wide Range ◽  
Theoretical Analyses ◽  
Control Packets ◽  
Drone Control

In the last ten years, supported by the advances in technologies for unmanned aerial vehicles (UAVs), UAVs have developed rapidly and are utilized for a wide range of applications. To operate UAVs safely, by exchanging control packets continuously, operators should be able to monitor UAVs in real-time and deal with any problems immediately. However, due to any networking problems or unstable wireless communications, control packets can be lost or transmissions can be delayed, which causes the unstable drone control. To overcome this limitation, in this paper, we propose MuTran for enabling reliable UAV control. MuTran considers the packet type and duplicates only control packets, not data packets. After that, MuTran transmits the original and duplicate packets through multiple protocols and paths to improve the reliability of control packet transmissions. We designed MuTran and conducted a lot of theoretical analyses to demonstrate the validity of MuTran and analyze it from various aspects. We implemented MuTran on real devices and evaluated MuTran using the devices. We conducted experiments to verify the limitations of the existing systems and demonstrate that control packets can be transmitted more stably by using MuTran. Through the analysis and experimental results, we confirmed that MuTran reduces the control packet transfer delay, which improves the reliability and stability of controlling UAVs.

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