Vertical Sectorization for UAM in 3-D Aerial Network

IF 5.5 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS IEEE Wireless Communications Letters Pub Date : 2025-02-07 DOI:10.1109/LWC.2025.3539828

Jeeyeon Kim;Incheol Hwang;Daesik Hong

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Abstract

The goal of this letter is to propose a vertical sectorization approach to managing multiple vertical sectors for urban air mobility (UAM) units. Unlike traditional cellular systems, the user terminal is located above the ground at various heights in a 3-dimensional network. The proposed vertical sectorization enhances the received signal power effectively through vertical alignment by applying multiple vertical sectors that take the heights of the UAM units into consideration. This approach involves new vertical sectorization systems that improve the vertical alignment between the BS and the UAM unit. In addition, we also propose a new frequency resource allocation scheme based on the height of the UAM unit for mitigating interferences generated by the vertical sectorization. Simulation results show that the proposed vertical sectorization schemes enhance throughput, and improve coverage probability by 25.15% compared to the conventional system. Furthermore, the proposed scheme has been verified through simulations to improve spectral efficiency more effectively as the number of UAM units increases.

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三维航空网络中UAM的垂直分割

这封信的目标是提出一种垂直部门化方法来管理城市空中交通（UAM）单位的多个垂直部门。与传统的蜂窝系统不同，用户终端位于三维网络中不同高度的地面上。提出的垂直扇区通过应用多个考虑到UAM单元高度的垂直扇区，有效地增强了接收到的信号功率。这种方法涉及新的垂直分区系统，可以改善BS和UAM单元之间的垂直对齐。此外，我们还提出了一种新的基于UAM单元高度的频率资源分配方案，以减轻垂直扇区产生的干扰。仿真结果表明，与传统系统相比，提出的垂直分块方案提高了吞吐量，覆盖概率提高了25.15%。此外，通过仿真验证了该方案能够随着UAM单元数量的增加而更有效地提高频谱效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Wireless Communications Letters Engineering-Electrical and Electronic Engineering

CiteScore

12.30

自引率

6.30%

发文量

481

期刊介绍： IEEE Wireless Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of wireless communications. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of wireless communication systems.