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Journal Articles IEEE Communications Magazine Year : 2023

Wireless Channel Charting: Theory, Practice, and Applications


Channel charting is a recently proposed framework that applies dimensionality reduction to channel state information (CSI) in wireless systems with the goal of associating a pseudo-position to each mobile user in a low-dimensional space: the channel chart. Channel charting summarizes the entire CSI dataset in a self-supervised manner, which opens up a range of applications that are tied to user location. In this article, we introduce the theoretical underpinnings of channel charting and present an overview of recent algorithmic developments and experimental results obtained in the field. We furthermore discuss concrete application examples of channel charting to network- and user-related applications, and we provide a perspective on future developments and challenges as well as the role of channel charting in next-generation wireless networks.
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hal-04067052 , version 1 (06-12-2023)





Paul Ferrand, Maxime Guillaud, Christoph Studer, Olav Tirkkonen. Wireless Channel Charting: Theory, Practice, and Applications. IEEE Communications Magazine, 2023, ⟨10.1109/MCOM.001.2200344⟩. ⟨hal-04067052⟩
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