Harnessing NLOS Components for Position and Orientation Estimation in 5G Millimeter Wave MIMO
Artikel i vetenskaplig tidskrift, 2019

In the past, NLOS propagation was proven to be a source of distortion for radio-based positioning systems due to the lack of temporal and spatial resolution of previous cellular systems. Hence, every NLOS component was perceived as a perturbation for localization. Even though 5G is not yet standardized, a strong proposal, which has the potential to overcome the problem of limited temporal and spatial resolution, is the massive MIMO millimeter wave technology. We reconsider the role of NLOS components for position and orientation estimation in 5G millimeter wave MIMO systems. Our analysis is based on the concept of Fisher information. We show that for sufficiently high temporal and spatial resolution, NLOS components always provide position and orientation information that consequently increase position and orientation estimation accuracy. In addition, we show that the information gain of NLOS components depends on the actual location of the reflector or scatter. Our numerical examples suggest that the NLOS components are most informative about the position and orientation of a mobile terminal when the corresponding reflectors or scatterers are illuminated with narrow beams.


position error bound

Fisher information

millimeter wave



Rico Mendrzik

Technische Universität Hamburg-Harburg (TUHH)

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Gerhard Bauch

Technische Universität Hamburg-Harburg (TUHH)

Z. Abu-Shaban

University of New South Wales (UNSW)

IEEE Transactions on Wireless Communications

15361276 (ISSN) 15582248 (eISSN)

Vol. 18 1 93-107 8515231

COPPLAR CampusShuttle cooperative perception & planning platform

VINNOVA (2015-04849), 2016-01-01 -- 2018-12-31.

High precision positioning for cooperative ITS applications

Europeiska kommissionen (EU) (EC/H2020/636537), 2015-01-01 -- 2017-12-31.

Fifth Generation Communication Automotive Research and innovation (5GCAR)

Europeiska kommissionen (EU) (EC/H2020/761510), 2017-06-01 -- 2019-05-31.


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