Harnessing NLOS Components for Position and Orientation Estimation in 5G Millimeter Wave MIMO
Journal article, 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

Technical University of Hamburg (TUHH)

Henk Wymeersch

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Gerhard Bauch

Technical University of Hamburg (TUHH)

Z. Abu-Shaban

University of New South Wales (UNSW)

IEEE Transactions on Wireless Communications

1536-1276 (ISSN)

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

European Commission (EC) (EC/H2020/636537), 2015-01-01 -- 2017-12-31.

Fifth Generation Communication Automotive Research and innovation (5GCAR)

European Commission (EC) (EC/H2020/761510), 2017-06-01 -- 2019-05-31.

Subject Categories

Other Computer and Information Science

Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering



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