arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2403.15411eess.SP
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UAV辅助无线通信中的UAV部署优化

UAV Deployment Optimization in UAV-assisted Wireless Communications

Xueqi Zhang, Aimin Wang, Geng Sun, Lingling Liu, Jing Zhang

AI总结:

本文研究UAV作为高空中继的无线通信网络,提出UAV中继部署优化问题(URDOP)以最小化系统能耗,并设计自适应差分进化(SaDEVPS)算法进行求解,仿真证明其优于其他基准算法。

摘要:

由于基站(BS)的位置在安装后无法更改,直接与远程用户设备(UE)通信非常困难,这将直接影响系统的寿命。由于部署灵活且具有成本效益,无人机(UAV)作为第五代无线通信的移动中继提供了一种有希望的解决方案。然而,由于UAV的机载能量有限且储能技术进展缓慢,实现节能通信是一项关键挑战。因此,在本文中,我们研究了一个使用UAV作为高空中继的无线通信网络,并提出了一个UAV中继部署优化问题(URDOP),通过优化UAV的部署(包括UAV悬停点的位置和数量)来最小化系统的能耗。由于所提出的URDOP是一个混合整数规划问题,它对传统的基于梯度的方法提出了重大挑战。为此,我们提出了一种具有可变种群大小的自适应差分进化(SaDEVPS)算法来解决所提出的URDOP。所提出的SaDEVPS的性能通过仿真得到了验证,结果表明,与其他基准算法相比,它能够在多个实例中成功降低系统的能耗。

英文摘要:

Due to the fact that the locations of base stations (BSs) cannot be changed after they are installed, it is very difficult to communicate directly with remote user equipment (UE), which will directly affect the lifespan of the system. Unmanned aerial vehicles (UAVs) offer a hopeful solution as mobile relays for fifth-generation wireless communications due to the flexible and cost-effective deployment. However, with the limited onboard energy of UAV and slow progress in energy storage technology, it is a key challenge to achieve the energy-efficient communication. Therefore, in this article, we study a wireless communication network using a UAV as a high-altitude relay, and formulate a UAV relay deployment optimization problem (URDOP) to minimize the energy consumption of system by optimizing the deployment of UAV, including the locations and number of UAV hover points. Since the formulated URDOP is a mixed-integer programming problem, it presents a significant challenge for conventional gradient-based approaches. To this end, we propose a self-adaptive differential evolution with a variable population size (SaDEVPS) algorithm to solve the formulated URDOP. The performance of proposed SaDEVPS is verified through simulations, and the results show that it can successfully decrease the energy consumption of system when compared to other benchmark algorithms across multiple instances.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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