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Leveraging Channel Charting for Localization With Weakly Supervised Learning

delete2026-07-28
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PRE
AI
T
Tianxiang Xu
李
李悠 (Li You)
王珏 封面图
王珏 (Jue Wang)
C
Chenjie Xie
C
Chen Sun
X
Xiqi Gao
DOI:10.1109/lwc.2026.3717651delete
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摘要

摘要

En 中文
信道图谱(CC)是一种自监督学习技术,旨在构建信道测量的低维表示,同时保留用户的邻接关系。本文提出了一种借助CC的基于机器学习的无线电定位方法,该方法充分利用仅从信道测量中提取的差异性。为此,采用了一种受物理原理启发的混合模型结构,该结构通过一个以信道图谱初始化的计算高效的两层神经网络实现。训练过程采用弱监督方法,结合:1)通过信道差异性指标保持相对用户邻接关系的Siamese网络架构,以及2)具有真实位置注释的一组有限的锚点来建立绝对位置参考。该方法在真实信道数据上进行了实证验证,与基准方法相比,实现了令人鼓舞的定位精度。
Keyword:
Channel charting
localization
machine learning
neural network

期刊

I
IEEE Wireless Communications Letters
IF:
5.5
论文数:
867
被引数:
0

机构

N
nantong university
学者数:
4.4K
论文数: 1.3K
被引数: 0
S
Southeast University
学者数:
2.1W
论文数: 8.6K
被引数: 480
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