Channel Estimation for mmWave Pinching-Antenna Systems
Zhou G, Papanikolaou V, Ding Z, Schober R (2025)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2025
Journal
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: 2025 IEEE 26th International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications (SPAWC)
Event location: Surrey
ISBN: 978-1-6654-7777-2
DOI: 10.1109/SPAWC66079.2025.11143413
Abstract
The full potential of pinching-antenna systems (PAS) can be unblocked if pinching antennas can be accurately activated at positions tailored for the serving users', which means that acquiring accurate channel state information (CSI) at arbitrary positions along the waveguide is essential for the precise placement of antennas. In this work, we propose an innovative channel estimation scheme for millimeter-wave (mmWave) PAS. The proposed approach requires activating only a small number of pinching antennas, thereby limiting antenna switching and pilot overhead. Specifically, a base station (BS) equipped with a waveguide selectively activates subarrays located near and far from the feed point, each comprising a small number of pinching antennas. This configuration effectively emulates a large-aperture array, enabling high-accuracy estimation of multipath propagation parameters, including angles, delays, and path gains. Simulation results demonstrate that the proposed method achieves accurate CSI estimation and data rates while effectively reducing hardware switching and pilot overhead.
Authors with CRIS profile
Gui Zhou
Lehrstuhl für Digitale Übertragung (IDC)
Vasileios Papanikolaou
Lehrstuhl für Digitale Übertragung (IDC)
Robert Schober
Lehrstuhl für Digitale Übertragung (IDC)
Involved external institutions
How to cite
APA:
Zhou, G., Papanikolaou, V., Ding, Z., & Schober, R. (2025). Channel Estimation for mmWave Pinching-Antenna Systems. In 2025 IEEE 26th International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications (SPAWC). Surrey, GB: Institute of Electrical and Electronics Engineers Inc..
MLA:
Zhou, Gui, et al. "Channel Estimation for mmWave Pinching-Antenna Systems." Proceedings of the 26th IEEE International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications, SPAWC 2025, Surrey Institute of Electrical and Electronics Engineers Inc., 2025.
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