Superresolution Wireless Multipath Channel Path Delay Estimation for CIR-Based Localization

Li Z, Nimr A, Schulz P, Fettweis G (2022)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2022

Publisher: IEEE

Conference Proceedings Title: 2022 IEEE Wireless Communications and Networking Conference (WCNC)

Event location: Austin, Texas, United States US

URI: https://ieeexplore.ieee.org/abstract/document/9771756

DOI: 10.1109/WCNC51071.2022.9771756

Abstract

The channel impulse response (CIR)-based localiza-tion requires estimating the channel path delays at a certain position. Several state-of-the-art (SoA) approaches have been proposed to estimate the delays based on eigendecomposition. However, they are limited by the assumption of uncorrelated paths, which is not accurate in the context of localization. The attempt to mitigate the rank deficits problem by means of frequency smoothing (FS) requires a considerable amount of measurements on different center frequencies. Another solution with single snapshot multiple signal classification (MUSIC) lacks the accuracy in resolving fractional path delays and requires high computational complexity. In this paper, we propose a new approach to construct the eigendecomposition model by means of a simple arrangement of the frequency-domain estimated channel gains. Our method has lower computational complexity and is able to outperform the SoA techniques in terms of estimation accuracy and resolution. The performance is evaluated with numerical simulations and supported by measurements using realistic radio frequency (RF) hardware.

Authors with CRIS profile

Zhongju Li Lehrstuhl für Intelligente Technische Elektronik und Systeme

Involved external institutions

Technische Universität Dresden DE Germany (DE)

How to cite

APA:

Li, Z., Nimr, A., Schulz, P., & Fettweis, G. (2022). Superresolution Wireless Multipath Channel Path Delay Estimation for CIR-Based Localization. In 2022 IEEE Wireless Communications and Networking Conference (WCNC). Austin, Texas, United States, US: IEEE.

MLA:

Li, Zhongju, et al. "Superresolution Wireless Multipath Channel Path Delay Estimation for CIR-Based Localization." Proceedings of the IEEE Conference on Wireless Communications and Networking, Austin, Texas, United States IEEE, 2022.

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