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Confidence Based Asynchronous Integrated Communication and Localization Networks Using IR-UWB Signals
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AI
DOI：10.1109/TNSE.2026.3658887.png)
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Abstract
En 中文
Driven by increasing demands for integrated communication and localization (ICL), ultra-wideband (UWB) technology has attracted significant attention due to its high temporal resolution and strong resilience to interference. This paper proposes an asynchronous impulse radio UWB downlink network that enables ICL using a unified waveform, eliminating the need for pilot signals or pulse-level synchronization. A differential symbol detection strategy is developed, incorporating a symbol confidence model with an optimized threshold to improve demodulation and localization reliability. Building on this framework, a low-complexity confidence-weighted clock offset estimation algorithm is developed to address timing drift. Additionally, a robust frame synchronization model based on start-of-frame delimiter detection is introduced for frame header detection. Simulation results validate the capability of the system to support reliable data demodulation and localization simultaneously. Extensive real-world experiments are conducted using a commercial UWB platform with static anchors and a mobile agent. With clock calibration and anchor selection, the system achieves localization accuracy within 10 cm in 90% of cases.
Keywords:
Integrated communication and localization
IR-UWB
confidence metric
downlink-TDOA
asynchronous
Journal
I
IF:
7.9
Papers:
2.5K
Citations:
10.0K