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Design of a Device-Robust Bluetooth RSS-Based Localization Framework with Multi-Channel Representation Learning in IoT Environments

  • Journal of Internet of Things and Convergence
  • Abbr : JKIOTS
  • 2026, 12(2), pp.39~47
  • Publisher : The Korea Internet of Things Society
  • Research Area : Engineering > Computer Science > Internet Information Processing
  • Received : February 24, 2026
  • Accepted : April 20, 2026
  • Published : April 30, 2026

JaeHyuk, Lee 1

1서울과학기술대학교 IT융합기술연구소

Accredited

ABSTRACT

This study proposes a Bluetooth RSS-based localization framework with multi-channel representation learning to address device heterogeneity in IoT environments. Unlike conventional fingerprint-based approaches, the proposed method directly processes variable-length MAC sets and models RSS using multi-channel features to capture structural signal characteristics. Experiments on the publicly available OutFin dataset show that the proposed model achieves 100% Top-1 and Top-5 accuracy in the in-device setting, outperforming k-NN, SVM, and MLP baselines. Under cross-device evaluation, traditional methods exhibit performance drops of up to 79%, whereas the proposed model maintains 93.74% Top-1 accuracy with only a 6.26% reduction. These results demonstrate that the proposed framework effectively mitigates cross-device degradation and provides robust, generalizable localization in practical IoT environments.

Citation status

* References for papers published after 2024 are currently being built.

This paper was written with support from the National Research Foundation of Korea.