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Accurate Direct Positioning in Distributed MIMO Using Delay-Doppler Channel Measurements

Deutschman, Benjamin J. B. ; Nelson, Christian LU orcid ; Henriksson, Mikael ; Marti, Gian ; Kosasih, Alva ; Tervo, Nuutti ; Leitinger, Erik and Tufvesson, Fredrik LU orcid (2024)
Abstract
Distributed multiple-input multiple-output (D-MIMO) is a promising technology for simultaneous communication and positioning. However, phase synchronization between multiple access points in D-MIMO is challenging and methods that function without the need for phase synchronization are highly desired. Therefore, we present a method for D-MIMO that performs direct positioning of a moving device based on the delay-Doppler characteristics of the channel state information (CSI). Our method relies on particle-filter-based Bayesian inference with a state-space model. We use recent measurements from a sub-6 GHz D-MIMO OFDM system in an industrial environment to demonstrate near-centimeter accuracy under partial line-of-sight (LoS) conditions and... (More)
Distributed multiple-input multiple-output (D-MIMO) is a promising technology for simultaneous communication and positioning. However, phase synchronization between multiple access points in D-MIMO is challenging and methods that function without the need for phase synchronization are highly desired. Therefore, we present a method for D-MIMO that performs direct positioning of a moving device based on the delay-Doppler characteristics of the channel state information (CSI). Our method relies on particle-filter-based Bayesian inference with a state-space model. We use recent measurements from a sub-6 GHz D-MIMO OFDM system in an industrial environment to demonstrate near-centimeter accuracy under partial line-of-sight (LoS) conditions and decimeter accuracy under fully obstructed LoS. (Less)
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author
; ; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
D-MIMO, integrated communication and sensing, direct positioning, particle filter, Bayesian state-filtering
host publication
IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
pages
5 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85207079096
ISBN
979-8-3503-9318-7
DOI
10.48550/arXiv.2404.15936
project
ELLIIT LU P01: WP6 Vehicular communication
language
English
LU publication?
yes
id
58b3f6b6-786e-43cb-b054-1a6b3968c208
date added to LUP
2024-08-06 00:06:43
date last changed
2025-06-05 20:36:23
@inproceedings{58b3f6b6-786e-43cb-b054-1a6b3968c208,
  abstract     = {{Distributed multiple-input multiple-output (D-MIMO) is a promising technology for simultaneous communication and positioning. However, phase synchronization between multiple access points in D-MIMO is challenging and methods that function without the need for phase synchronization are highly desired. Therefore, we present a method for D-MIMO that performs direct positioning of a moving device based on the delay-Doppler characteristics of the channel state information (CSI). Our method relies on particle-filter-based Bayesian inference with a state-space model. We use recent measurements from a sub-6 GHz D-MIMO OFDM system in an industrial environment to demonstrate near-centimeter accuracy under partial line-of-sight (LoS) conditions and decimeter accuracy under fully obstructed LoS.}},
  author       = {{Deutschman, Benjamin J. B. and Nelson, Christian and Henriksson, Mikael and Marti, Gian and Kosasih, Alva and Tervo, Nuutti and Leitinger, Erik and Tufvesson, Fredrik}},
  booktitle    = {{IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}},
  isbn         = {{979-8-3503-9318-7}},
  keywords     = {{D-MIMO; integrated communication and sensing; direct positioning; particle filter; Bayesian state-filtering}},
  language     = {{eng}},
  month        = {{10}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{Accurate Direct Positioning in Distributed MIMO Using Delay-Doppler Channel Measurements}},
  url          = {{http://dx.doi.org/10.48550/arXiv.2404.15936}},
  doi          = {{10.48550/arXiv.2404.15936}},
  year         = {{2024}},
}