Joint Maneuver and Beamwidth Optimization for UAV-Enabled Multicasting

被引:13
作者
Tang, Na [1 ,2 ]
Tang, Hongying [1 ]
Li, Baoqing [1 ]
Yuan, Xiaobing [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Sci & Technol Microsyst Lab, Shanghai 200050, Peoples R China
[2] Univ Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Beijing 100049, Peoples R China
来源
IEEE ACCESS | 2019年 / 7卷
基金
中国国家自然科学基金;
关键词
Three-dimensional displays; Unmanned aerial vehicles; Trajectory; Optimization; Multicast communication; Directional antennas; UAV communications; multicasting; 3D location design; 3D trajectory design; directional antenna; beamwidth optimization; TRAJECTORY OPTIMIZATION; RESOURCE-ALLOCATION; COMPLETION-TIME; COMMUNICATION; DESIGN; ALTITUDE; POWER; MINIMIZATION;
D O I
10.1109/ACCESS.2019.2947031
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Unmanned aerial vehicles (UAVs)-assisted communications have been an essential complement of conventional wireless networks. In this paper, we consider a UAV-enabled multicasting system, where a UAV with a directional antenna of adjustable beamwidth is employed to disseminate a common file to a group of ground users. By minimizing the mission completion time, we investigate how beamwidth control would affect the UAVs three-dimensional (3D) location/trajectory. First, we consider the quasi-stationary UAV scenario, where the UAV is deployed at a static location. In this case, we jointly optimize the 3D UAV location and antenna beamwidth under the practical constraints on the UAVs altitude and beamwidth, while ensuring that all users are covered by the main lobe of the UAV antenna. Although this problem is nonconvex, its global optimality can be obtained by using a two-step algorithm, where semi-closed solutions of the 3D location and beamwidth are derived. Next, in the mobile UAV scenario, a joint 3D UAV trajectory and beamwidth design is proposed, additionally constrained by the horizontal and vertical speed. To tackle this nonconvex problem, we develop an iterative optimization algorithm based on successive convex approximation techniques, which updates the 3D trajectory and beamwidth simultaneously in each iteration. Numerical results demonstrate the effectiveness of the proposed design as compared to benchmark schemes.
引用
收藏
页码:149503 / 149514
页数:12
相关论文
共 35 条
[11]   Joint Altitude and Beamwidth Optimization for UAV-Enabled Multiuser Communications [J].
He, Haiyun ;
Zhang, Shuowen ;
Zeng, Yong ;
Zhang, Rui .
IEEE COMMUNICATIONS LETTERS, 2018, 22 (02) :344-347
[12]   Resource Allocation for Secure UAV-Assisted SWIPT Systems [J].
Hong, Xianggong ;
Liu, Pengpeng ;
Zhou, Fuhui ;
Guo, Sen ;
Chu, Zheng .
IEEE ACCESS, 2019, 7 :24248-24257
[13]  
Kalantari E, 2017, IEEE INT CONF COMM, P109, DOI 10.1109/ICCW.2017.7962642
[14]   UAV-Aided Offloading for Cellular Hotspot [J].
Lyu, Jiangbin ;
Zeng, Yong ;
Zhang, Rui .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2018, 17 (06) :3988-4001
[15]   Placement Optimization of UAV-Mounted Mobile Base Stations [J].
Lyu, Jiangbin ;
Zeng, Yong ;
Zhang, Rui ;
Lim, Teng Joon .
IEEE COMMUNICATIONS LETTERS, 2017, 21 (03) :604-607
[16]   Efficient Deployment of Multiple Unmanned Aerial Vehicles for Optimal Wireless Coverage [J].
Mozaffari, Mohammad ;
Saad, Walid ;
Bennis, Mehdi ;
Debbah, Merouane .
IEEE COMMUNICATIONS LETTERS, 2016, 20 (08) :1647-1650
[17]   UAV-Enabled Communication Using NOMA [J].
Nasir, Ali Arshad ;
Tuan, Hoang Duong ;
Duong, Trung Q. ;
Poor, H. Vincent .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2019, 67 (07) :5126-5138
[18]   Completion Time and Energy Consumption Minimization for UAV-Enabled Multicasting [J].
Song, Qingheng ;
Jin, Shi ;
Zheng, Fu-Chun .
IEEE WIRELESS COMMUNICATIONS LETTERS, 2019, 8 (03) :821-824
[19]   Optimal 3D-Trajectory Design and Resource Allocation for Solar-Powered UAV Communication Systems [J].
Sun, Yan ;
Xu, Dongfang ;
Ng, Derrick Wing Kwan ;
Dai, Linglong ;
Schober, Robert .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2019, 67 (06) :4281-4298
[20]   An Efficient Solution for Joint Power and Trajectory Optimization in UAV-Enabled Wireless Network [J].
Tang, Hongying ;
Wu, Qingqing ;
Li, Baoqing .
IEEE ACCESS, 2019, 7 :59640-59652