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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Li You

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Oct 2026

Joint Channel Estimation and Active User Detection for Massive Grant-Free Access in XL-MIMO System

The extra-large multiple-input–multiple-output (XL-MIMO) technique has demonstrated significant potential for future wireless communications. In this article, we investigate the joint channel estimation (CE) and active user detection (AUD) for massive grant-free access in XL-MIMO systems. The conventional efficient joi...

Jia-Wei Zhuang, Jiaqi Fang, Gang Sun et al. · 0 citations
2026

Leveraging Channel Charting for Localization With Weakly Supervised Learning

Channel charting (CC) is a self-supervised learning technique which aims to construct a lower-dimensional representation of the channel measurements, while preserving the neighboring relationship of users. In this letter, we propose a machine learning approach for radio-based localization task with the aid of CC, which...

Tian-Xiang Xu, Li You, Jue Wang et al. · 0 citations

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