Laser & Optoelectronics Progress, Volume. 58, Issue 21, 2106006(2021)
Optimal Beam Design for UAV Emergency Communication Network
Aiming at the problem of limited power consumption and battery capacity in unmanned aerial vehicle(UAV)-assisted multi-user multiple input multiple output (MU-MIMO) emergency communication networks, a method is proposed for power-constrained conditions. The design of beamforming to maximize the total transmission rate of the system is optimized. First, a method for easy determination of UAV position without iteration is proposed. Second, considering that the problem is non-convex, the first-order Taylor approximation is used to approximate it convexly. The second-order cone programming (SOCP) reduces the computational complexity and solves the best beamforming vector. The simulation results show that the proposed method is suitable for multi-user communication systems. Although the interference cannot be reset to zero during the simulation process, the system's total transmission rate can be maximized by suppressing the interference.
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Jingmin Tang, Simiao Liu, Jie Wang. Optimal Beam Design for UAV Emergency Communication Network[J]. Laser & Optoelectronics Progress, 2021, 58(21): 2106006
Category: Fiber Optics and Optical Communications
Received: Feb. 12, 2021
Accepted: Mar. 15, 2021
Published Online: Nov. 1, 2021
The Author Email: Liu Simiao (1005037557@qq.com)