利用可重构智能表面进行近场用户联合检测和定位

IF 4.6 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Wireless Communications Letters Pub Date : 2024-10-28 DOI:10.1109/LWC.2024.3487116

Georgios Mylonopoulos;Behrooz Makki;Stefano Buzzi;Gábor Fodor

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引用次数: 0

摘要

本文研究了在近场检测活跃用户设备设备（ue）和定位问题，其中基站（BS）不知道活跃（或非活跃）ue的数量及其位置。该系统配备了多个可重构智能表面（RISs），为检测和定位提供了低复杂性的解决方案，并且由于额外的检查点而具有额外的自由度。具体而言，我们提出了一种迭代检测程序，允许BS将驾驶员分配到检测到的ue，从而提供结构化的通道访问。此外，还探讨了多址干扰作为限制性能因素的问题。结果表明，通过适当的RISs配置，该方案可以检测/定位UE，将基准检测方案扩展到空间感知UE检测。

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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Joint User Detection and Localization in Near-Field Using Reconfigurable Intelligent Surfaces

This letter studies the problem of detecting active user equipment devices (UEs) and localization in the near field, wherein the base station (BS) is unaware of the number of active (or inactive) UEs and their positions. The system is equipped with multiple reconfigurable intelligent surfaces (RISs), which provide a low-complexity solution for detection and localization with additional degrees of freedom due to the additional inspection points. Specifically, we propose an iterative detection procedure, allowing the BS to assign pilots to detected UEs, and thereby providing a structured channel access. Also, the problem of multiple access interference is explored as a limiting performance factor. The results show that, with a proper configuration of the RISs, the proposed scheme can detect/localize UEs, augmenting benchmark detection schemes to spatially aware UE detection.

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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.