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

Benjamin J. B. Deutschman, Christian Nelson, Mikael Henriksson, Gian Marti, Alva Kosasih, Nuutti Tervo, Erik Leitinger, Fredrik Tufvesson

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

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.
Originalspråkengelska
Titel på värdpublikationIEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Antal sidor5
ISBN (elektroniskt)979-8-3503-9318-7
DOI
StatusPublished - 2024 okt. 7

Ämnesklassifikation (UKÄ)

  • Signalbehandling
  • Kommunikationssystem

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