论文标题
节能无人机通信：广义推进能源消耗模型
Energy-Efficient UAV Communications: A Generalised Propulsion Energy Consumption Model
论文作者
论文摘要
本文提出了一个普遍的推进能量消耗模型（PECM），用于考虑到速度，加速度和无人机变化的实际推力重量比（TWR），用于旋转旋转ummanned飞机（UAV）（UAV）。为了验证拟议的PECM的有效性，我们考虑了一个具有无人机的通信系统，旋转翼无人机可为多个地面用户作为空中基站服务。我们旨在通过共同优化用户调度和UAV轨迹变量来最大化无人机的能源效率（EE）。但是，配制的问题是一个非凸的分数整数编程问题，这是获得其最佳解决方案的挑战。为了解决这个问题，我们通过将原始问题分解为两个子问题，以基于连续的凸近似技术获得次优的解决方案，提出了一种有效的迭代算法。仿真结果表明，通过应用所提出的PECM，优化的UAV轨迹更光滑，与其他基准方案相比，相应的EE具有显着改善。
This paper proposes a generalised propulsion energy consumption model (PECM) for rotary-wing ummanned aerial vehicles (UAVs) under the consideration of the practical thrust-to-weight ratio (TWR) with respect to the velocity, acceleration and direction change of the UAVs. To verify the effectiveness of the proposed PECM, we consider a UAV-enabled communication system, where a rotary-wing UAV serves multiple ground users as an aerial base station. We aim to maximize the energy efficiency (EE) of the UAV by jointly optimizing the user scheduling and UAV trajectory variables. However, the formulated problem is a non-convex fractional integer programming problem, which is challenging to obtain its optimal solution. To tackle this, we propose an efficient iterative algorithm by decomposing the original problem into two sub-problems to obtain a suboptimal solution based on the successive convex approximation technique. Simulation results show that the optimized UAV trajectory by applying the proposed PECM are smoother and the corresponding EE has significant improvement as compared to other benchmark schemes.
