Low-Complexity Accurate Mmwave Positioning for Single-Antenna Users Based on Angle-of-Departure and Adaptive Beamforming
Paper in proceeding, 2020
The problem of position estimation of a mobile user equipped with a single antenna receiver using downlink transmissions is addressed. The advantages of this setup compared to the classical MIMO and uplink scenarios are analyzed in terms of achievable theoretical performance (Cramér-Rao bounds) considering a realistic power budget. Based on this analysis, a low-complexity two-step algorithm with improved localization performance is proposed, which first performs a (coarse) angle of departure estimation and then precodes the down-link signal to introduce beamforming towards the user direction. Results demonstrate that position estimation in downlink can be potentially much more accurate than in uplink, even in presence of multiple users in the system.
mmWave
position estimation
5G cellular networks
downlink
angle of departure (AOD)
Author
Alessio Fascista
University of Salento
Angelo Coluccia
University of Salento
Henk Wymeersch
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
G. Seco-Granados
Universitat Autonoma de Barcelona (UAB)
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
15206149 (ISSN)
Vol. 2020-May 4866-4870 9053493
2020 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2020
Barcelona, Spain,
Barcelona, Spain,
Multi-dimensional Signal Processing with Frequency Comb Transceivers
Swedish Research Council (VR) (2018-03701), 2018-12-01 -- 2021-12-31.
Subject Categories
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/ICASSP40776.2020.9053493