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Interference Avoidance in UAV-Assisted Networks: Joint 3D Trajectory Design and Power Allocation [article]

Ali Rahmati, Seyyedali Hosseinalipour, Yavuz Yapici, Xiaofan He, Ismail Guvenc, Huaiyu Dai, Arupjyoti Bhuyan
2019 arXiv   pre-print
An alternating-maximization strategy is proposed to solve the joint 3D trajectory design and power allocation for the relaying UAVs.  ...  Our primary goal is to optimize the three-dimensional (3D) trajectories and power allocation for the relaying UAVs to maximize the data flow while keeping the interference to existing nodes below a predefined  ...  CONCLUSION In this paper, we considered the joint power and 3D trajectory design for a relay assisted UAV network coexisting with the already existing network.  ... 
arXiv:1904.07781v1 fatcat:rnhhebldkfdodpw2hoi42wfn6q

Dynamic Interference Management for UAV-Assisted Wireless Networks [article]

Ali Rahmati, Seyyedali Hosseinalipour, Yavuz Yapici, Xiaofan He, Ismail Guvenc, Huaiyu Dai, Arupjyoti Bhuyan
2019 arXiv   pre-print
Our primary goal is to design the 3D trajectories and power allocation for the UAVs to maximize the data flow while the interference constraint is met.  ...  An alternating-maximization approach is proposed to address the joint 3D trajectory design and power allocation problem.  ...  CONCLUSION In this paper, we have considered the joint power and 3D trajectory design for a UAV-assisted relay network in the presence of an already existing network.  ... 
arXiv:1909.12777v1 fatcat:2tl73fatv5copkbhhf7x4x7p2i

Throughput Improvement for Multi-Hop UAV Relaying

Jingyao Fan, Miao Cui, Guangchi Zhang, Yunfei Chen
2019 IEEE Access  
power for the source and relays, and the trajectories of the UAVs, subject to constraints on the total spectrum bandwidth, the average and peak transmit power, the UAV mobility and collision avoidance  ...  INDEX TERMS Bandwidth allocation, multi-hop relaying, power allocation, trajectory optimization, UAV communication. I.  ...  In [18] , a DF UAV relaying system has been considered and throughput maximization was obtained by joint UAV relay trajectory optimization and transmit power allocation.  ... 
doi:10.1109/access.2019.2946353 fatcat:2yhhonfiorechitmvqr7los5dq

Joint Trajectory and Communication Design for Buffer-Aided Multi-UAV Relaying Networks

Dongju Cao, Wendong Yang, Gangyi Xu
2019 Applied Sciences  
power, and UAV trajectory optimization.  ...  The simulation results show that by alternately optimizing the relay selection, UAV transmit power, and UAV trajectory, the proposed algorithm is able to achieve convergence quickly and significantly improve  ...  Author Contributions: D.C. and W.Y. conceived of the model; D.C. performed the simulation results and wrote the paper; and W.Y., G.X. provided some suggestions and revised the paper.  ... 
doi:10.3390/app9245524 fatcat:aaxilcshhrbpjg5im5cqocfu6q

Joint Deployment and Power Optimization for UAV Relay in Multiuser Networks

Ang Ji, Jianjun Wu
2022 Wireless Communications and Mobile Computing  
coefficients to form a UAV relay multiuser network.  ...  Simulation shows that the proposed UAV deployment and amplification coefficient of the UAV optimization design algorithm significantly improves the sum-rate compared with existing fixed relay and equal  ...  In [9] , the outage probability of UAV relay network was derived, and a trajectory design and power allocation method was proposed.  ... 
doi:10.1155/2022/9560806 doaj:ecee7d38294b4fea8655c3f695697a9e fatcat:biml7nlcnrcznisxl5tldqkjvy

UAV-Assisted Emergency Networks in Disasters

Nan Zhao, Weidang Lu, Min Sheng, Yunfei Chen, Jie Tang, F. Richard Yu, Kai-Kit Wong
2019 IEEE wireless communications  
Finally, open research issues and challenges are discussed. 2 Index Terms Emergency wireless networks, multi-hop relaying, trajectory optimization, transceiver design, unmanned aerial vehicle.  ...  First, the trajectory and scheduling of UAV are jointly optimized to provide wireless service to ground devices with surviving BSs.  ...  The throughput of UAV-enabled mobile relaying was optimized by Zeng et al., by jointly optimizing the transmit power and relay trajectory in [2] .  ... 
doi:10.1109/mwc.2018.1800160 fatcat:cn3w5vqv4jg2njmh6c3zjjsive

A Comprehensive Survey on Aerial Mobile Edge Computing: Challenges, State-of-the-Art, and Future Directions [article]

Zhengyu Song, Xintong Qin, Yuanyuan Hao, Tianwei Hou, Jun Wang, Xin Sun
2022 arXiv   pre-print
Then, we provide a comprehensive review of the recent research advances, which is categorized by different domains, including the joint optimization of UAV trajectory, computation offloading and resource  ...  allocation, UAV deployment, task scheduling and load balancing, interplay between aerial MEC and other technologies, as well as the machine-learning (ML)-driven optimization.  ...  Then, based on three typical roles of UAVs, i.e., ABSs, mobile users, and relays, the joint optimization of UAV trajectory, computation offloading, and resource allocation was discussed, where the stringent  ... 
arXiv:2208.13965v1 fatcat:rglkodmjsve2fbncmmyatqos6y

Physical Layer Security for UAV Communications in 5G and Beyond Networks [article]

Jue Wang, Xuanxuan Wang, Ruifeng Gao, Chengleyang Lei, Wei Feng, Ning Ge, Shi Jin, Tony Q. S. Quek
2021 arXiv   pre-print
Finally, potential research directions and challenges are discussed to provide an outlook for future works in the area of UAV-PLS in 5G and beyond networks.  ...  Then, we introduce the widely used secrecy performance metrics and start by reviewing the secrecy performance analysis and enhancing techniques for statically deployed UAV systems, and extend the discussion  ...  By jointing optimizing the UAVs' trajectory, the transmission power and the power splitting ratios, the ASR was maximized.  ... 
arXiv:2105.11332v1 fatcat:d6oidecjcbaxrdz3kezdjxpypa

Physical Layer Security Against Eavesdropping in The Internet of Drones (IoD) Based Communication Systems

Jehad Hamamreh
2019 Figshare  
and inefficient for such systems.  ...  Besides, the special features of UAVs represented by having limited power (battery-operated) and processing (light RAM and CPU capabilities), makes applying complex cryptography approaches very challenging  ...  Specifically, the secrecy rate of the system is maximized by performing joint optimization for both; trajectory of the relaying UAV and the transmitted power of source and relay.  ... 
doi:10.6084/m9.figshare.8362385 fatcat:vgqfcc3qzzeh7f2zcaxecjn5wi

Cooperative Jamming for Secure UAV-Enabled Mobile Relay System

Jiansong Miao, Ziyuan Zheng
2020 IEEE Access  
An iterative algorithm is thus proposed to optimize the transmit power and flight trajectory of both UAVs alternately via the update-rate-assisted block coordinate descent and successive convex approximation  ...  A secrecy rate maximization problem is then formulated, subject to mobility constraints, power constraints on both UAVs and the information-causality constraint on the relay UAV.  ...  Joint trajectory and power optimization is performed in a UAV relay network [7] to minimize the system outage probability.  ... 
doi:10.1109/access.2020.2980242 fatcat:mufsl4dlujccbbasjy32kksgza

Survey on UAV Deployment and Trajectory in Wireless Communication Networks: Applications and Challenges

Sang Ik Han
2022 Information  
This paper surveys research conducted for the UAV deployment and trajectory to construct UAV wireless networks for the coverage extension, the throughput improvement and the resource management for different  ...  The performance of UAV wireless networks highly depends on the position or the trajectory of UAVs and the resource managements of entire networks.  ...  A sum-rate maximization for UAV-enabled two-way relay systems is considered in [47] , where the local optimal solution for joint optimization of time slot pairing, transmit power allocation, and the UAV  ... 
doi:10.3390/info13080389 fatcat:yul5euhetra3tn2lv33wkyjnlq

Joint Placement Optimization and RNC in UAV-based Wireless Multicast Networks [article]

Xianzhen Guo, Bin Li, Jiayi Cong, Ruonan Zhang
2020 arXiv   pre-print
Therefore, in this paper, we propose a UAV-based adaptive RNC (UARNC) scheme that jointly optimizes the UAV's location and RNC packet scheduling to maximize the throughput in a multicast network while  ...  This problem is formulated as an optimization problem, and the greedy scheduling techniques and particle swarm optimization (PSO) algorithm are adopted to solve it.  ...  UAV Trajectory Optimization With any given user scheduling A and transmit powers P , the optimal UAV trajectory can be obtained by solving the following problem.  ... 
arXiv:2011.07446v2 fatcat:6g4jkqwrjjatvinxiyjz7c5jom

Joint Worst Case Secrecy Rate and UAV Propulsion Energy Optimization via Robust Resource Allocation in Uncertain Adversarial Networks [article]

S. Ahmed, Mostafa Z. Chowdhury, S. R. Sabuj, Y. M. Jang
2020 arXiv   pre-print
First, we optimize both BS and UAV transmit power, and hovering speed for known UAV path planning and acceleration.  ...  Using the optimal transmit power and speed, we obtain the optimal trajectory and acceleration.  ...  We achieve the optimal achieve the average WCSR via optimizing joint UAV/BS transmit power, and the UAV trajectory.  ... 
arXiv:2006.15728v2 fatcat:acv7kmm7cjfbrcw4eytwrcuyja

Ocean Surface Drifting Buoy System Based on UAV-Enabled Wireless Powered Relay Network

Haole Chen, Feng Yin, Wei Huang, Mingliu Liu, Deshi Li
2020 Sensors  
By applying the block coordinate descent and successive convex optimization, a joint UAV trajectory and resource allocation algorithm is proposed to maximize the minimum throughput of the buoys to work  ...  We design an ocean surface drifting buoy system based on an unmanned aerial vehicle (UAV)-enabled wireless powered relay network in which the UAV acts as mobile hybrid access point that broadcasts energy  ...  direction to explore the global optimal solution in the joint UAV trajectory and power control problem.  ... 
doi:10.3390/s20092598 pmid:32370236 pmcid:PMC7249084 fatcat:zlv4wefxsjafpfdwsblbcssvde

Joint Power and Trajectory Design for Physical-Layer Secrecy in the UAV-Aided Mobile Relaying System [article]

Qian Wang, Zhi Chen, Shaoqian Li
2018 arXiv   pre-print
trajectory and the source/relay transmit power.  ...  The simulation results demonstrate the efficacy of the joint power and trajectory design in improving the secrecy throughput.  ...  In this simulation, our focus is on the joint optimization of the power allocation and the relay trajectory for SRM.  ... 
arXiv:1803.07874v2 fatcat:qvlhmfnjx5akvkanxsh6pcqreq
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