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arXiv 2302.13674cs.ITmath.IT
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面向高吞吐量移动非地面网络的阵列编队天线技术

Formation-of-Arrays Antenna Technology for High-Throughput Mobile Non-Terrestrial Networks

Giacomo Bacci, Riccardo De Gaudenzi, Marco Luise, Luca Sanguinetti, Elena Sebastiani

AI总结:

本文研究大型分布式天线阵列编队(FoA)技术,通过多颗小卫星协同携带子天线形成整体架构,解决星载窄波束天线尺寸受限问题,并理论分析其在多波段S频段移动网络中提升吞吐量的性能。

摘要:

地面与非地面段的有效融合是当前和未来无线通信网络设计中的关键研究方向之一。为此,现代通信卫星星座旨在通过较为激进的空间频率复用模式,在地面单位面积上获得足够高的比特率吞吐量。这一目标需要星载窄波束天线,但其尺寸在许多情况下与承载卫星的尺寸/质量及安装约束不相容。本文研究了大型分布式天线阵列的可实现性能,该阵列由若干个较小尺寸的简单子天线组成,每个子天线由一颗(小)卫星携带。子天线本身又可被实现为(常规的)简单辐射元件的2D阵列,从而构成一种我们称之为“阵列编队”(FoA)的整体(分布式)天线架构。实现这种辐射架构的卫星需要彼此相对靠近,构成一个飞行物编队,并作为一个整体进行协调和控制。在本文中,我们开发了FoA天线的理论分析,并展示了如何利用这项新技术,在具有低地球轨道或对地静止轨道卫星的多波束S频段移动通信网络中提高网络吞吐量,这些卫星直接向手持用户终端提供类5G通信服务。

英文摘要:

Effective integration of terrestrial and non-terrestrial segments is one of the key research avenues in the design of current and future wireless communication networks. To this aim, modern communication-satellite constellations intend to attain sufficiently high throughput in terms of bit rate per unit area on the ground by rather aggressive patterns of spatial frequency reuse. This goal calls for on-board narrow-beam antennas, whose size turns out to be in many cases incompatible with the size/mass and accommodation constraints of the hosting satellite. This paper investigates the attainable performance of large distributed arrays of antennas implemented as the ensemble of a few to many simpler sub-antennas of smaller sizes, carried by one (small) satellite each. The sub-antennas can in their turn be implemented like (regular) 2D arrays of simple radiating elements, realizing an overall (distributed) antenna architecture that we call "Formation of Arrays" (FoA). The satellites that implement this radiating architecture need to be relatively close to each other and constitute a formation of flying objects, to be coordinated and controlled as a whole. In this paper, we develop a theoretical analysis of an FoA antenna, and we show how to take advantage of this new technology to improve network throughput in a multi-beam S-band mobile communication network with low-earth or geostationary orbiting satellites directly providing 5G-like communication services to hand-held user terminals.

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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