典型文献
An Energy-Efficient UAV Deployment Scheme for Emergency Communications in Air-Ground Networks with Joint Trajectory and Power Optimization
文献摘要：
The space-air-ground integrated net-work (SAGIN) has gained widespread attention from academia and industry in recent years. It is widely ap-plied in many practical fields such as global observa-tion and mapping, intelligent transportation systems, and military missions. As an information carrier of air platforms, the deployment strategy of unmanned aerial vehicles (UAVs) is essential for communication sys-tems' performance. In this paper, we discuss a UAV broadcast coverage strategy that can maximize energy efficiency (EE) under terrestrial users' requirements. Due to the non-convexity of this issue, conventional approaches often solve with heuristics algorithms or alternate optimization. To this end, we propose an it-erative algorithm by optimizing trajectory and power allocation jointly. Firstly, we discrete the UAV trajec-tory into several stop points and propose a user group-ing strategy based on the traveling salesman prob-lem (TSP) to acquire the number of stop points and the optimization range. Then, we use the Dinkelbach method to dispose of the fractional form and trans-form the original problem into an iteratively solvable convex optimization problem by variable substitution and Taylor approximation. Numerical results validate our proposed solution and outperform the benchmark schemes in EE and mission completion time.
文献关键词：
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作者姓名：
Shuo Zhang;Shuo Shi;Weizhi Wang;Zhenyu Xu;Xuemai Gu
作者机构：
School of Electronic and Information Engineering,Harbin Institute of Technology,Harbin 150001,China;Peng Cheng Laboratory,Shenzhen 518055,China;Department of Intelligent Engineering,Huizhou Engineering Vocational College,Huizhou 516023,China
文献出处：
引用格式：
[1]Shuo Zhang;Shuo Shi;Weizhi Wang;Zhenyu Xu;Xuemai Gu-.An Energy-Efficient UAV Deployment Scheme for Emergency Communications in Air-Ground Networks with Joint Trajectory and Power Optimization)[J].中国通信（英文版）,2022(07):67-78
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AB值：
0.667201
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