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A Low-Complexity, High-Precision Time-of-Arrival Estimation Method for Indoor Multipath Channels Using 5G NR Signals

  • Yubo Han
  • , Rongke Liu*
  • , Xubo Zu
  • , Yuan Li
  • , Yuchen Cong
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To reduce the impact of multipath indoors in time-of-arrival (TOA) estimation using 5G NR signals, a low-complexity optimization algorithm for first path identification is proposed. This algorithm can achieve precision comparable to that of the Multiple Signal Classification (MUSIC) algorithm in some scenarios while maintaining much lower complexity, offering significant advantages for real-time positioning and low-capacity devices. With the establishment of the multipath aliasing model, a peak reconstruction algorithm based on threshold is proposed. The algorithm achieves better performance in simulation when the normalized threshold is about 0.3 and the time delay interval between the first path and multipath components is relatively large. Real-world experimental results are consistent with simulations, with the root mean square error (RMSE) of positioning below 0.73 m. In the corridor experiment, the accuracy of the novel algorithm is equivalent to that of MUSIC algorithm.

Original languageEnglish
Title of host publicationICCIP 2025 - 2025 The 11th International Conference on Communication and Information Processing
PublisherAssociation for Computing Machinery, Inc
Pages123-129
Number of pages7
ISBN (Electronic)9798400721922
DOIs
StatePublished - 1 Feb 2026
Event11th International Conference on Communication and Information Processing, ICCIP 2025 - Lingshui, China
Duration: 12 Nov 202515 Nov 2025

Publication series

NameICCIP 2025 - 2025 The 11th International Conference on Communication and Information Processing

Conference

Conference11th International Conference on Communication and Information Processing, ICCIP 2025
Country/TerritoryChina
CityLingshui
Period12/11/2515/11/25

Keywords

  • 5G NR
  • Low-complexity
  • Multipath
  • Time-of-arrival (TOA)

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