Localization With Distributed MIMO Using a High-Speed Sigma-Delta-Over-Fiber Testbed
Journal article, 2022
Distributed MIMO (D-MIMO) with synchronized access points (APs) is a promising architecture for both communications and localization in 5G and beyond systems. In this letter, we develop a time-difference-of-arrival (TDOA)-based indoor localization system using a 2.35-GHz high-speed sigma-delta-over-fiber (SDoF) D-MIMO testbed with 40-MHz bandwidth, exploiting the fully synchronized nature of the APs. Experimental results over an area of size 100 m² demonstrate accuracies below 0.2 m and agree with the theoretical Cramér-Rao bounds (CRBs) at most measurement locations, indicating the localization capability of high-speed SDoF D-MIMO.
Synchronization
Wireless communication
Bandwidth
synchronization.
sigma-delta-over-fiber (SDoF)
Anechoic chambers
localization
Clocks
Correlation
distributed MIMO (D-MIMO)
Cramér-Rao bound (CRB)
Location awareness
Author
Furkan Keskin
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Ibrahim Can Sezgin
Huawei
Husileng Bao
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Henk Wymeersch
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Christian Fager
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
IEEE Microwave and Wireless Components Letters
1531-1309 (ISSN) 15581764 (eISSN)
Vol. 32 7 923-926Subject Categories
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/LMWC.2022.3157144