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Optimizing Waveforms for Positioning in 5G

Dammann, Armin and Jost, Thomas and Raulefs, Ronald and Walter, Michael and Zhang, Siwei (2016) Optimizing Waveforms for Positioning in 5G. In: IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC. IEEE International workshop on Signal Processing advances in Wireless Communications, 3.-6. Jul. 2016, Edinburgh, UK. DOI: 10.1109/SPAWC.2016.7536783

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Official URL: http://ieeexplore.ieee.org/document/7536783/

Abstract

Today's mobile radio systems deploy reference signals which can be used or which are even dedicated for signal propagation delay-based mobile terminal positioning. Usually, the signal power of such reference signals is uniformly distributed over the available spectrum. It is known from estimation theory that such a uniform power distribution of reference signals is not optimal for signal propagation delay estimation. In this paper we consider mobile terminal positioning based on signal propagation delay estimation in the uplink case. For positioning, we introduce a parametric waveform. This waveform provides a scalar parameter for controlling the distribution of the available signal power over the spectrum. Using this waveform parameter we aim to minimize the positioning error. For optimization, we require a functional dependency between the waveform parameter and the positioning error we can expect. For the derivation of this function we combine the approaches of the Cramer-Rao and Ziv-Zakai bounds for position and propagation delay estimation. As an exemplary environment we consider a mobile terminal located in an area surrounded by 3 base stations. For this environment we show that the optimized waveform spends a significant part of the available power at the spectrum edges, leading to a performance gain of 37.3% at the center of the area between the base stations.

Item URL in elib:https://elib.dlr.de/106279/
Document Type:Conference or Workshop Item (Poster)
Title:Optimizing Waveforms for Positioning in 5G
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dammann, ArminArmin.Dammann (at) dlr.dehttps://orcid.org/0000-0002-7112-1833
Jost, ThomasThomas.Jost (at) dlr.deUNSPECIFIED
Raulefs, RonaldRonald.Raulefs (at) dlr.deUNSPECIFIED
Walter, MichaelM.Walter (at) dlr.dehttps://orcid.org/0000-0001-5659-8716
Zhang, SiweiSiwei.Zhang (at) dlr.deUNSPECIFIED
Date:3 July 2016
Journal or Publication Title:IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1109/SPAWC.2016.7536783
Status:Published
Keywords:5G, positioning, localization, navigation, signal design
Event Title:IEEE International workshop on Signal Processing advances in Wireless Communications
Event Location:Edinburgh, UK
Event Type:international Conference
Event Dates:3.-6. Jul. 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Verläßliche Navigation (old), R - Vorhaben GNSS2/Neue Dienste und Produkte
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Dammann, Dr.-Ing. Armin
Deposited On:27 Sep 2016 16:59
Last Modified:31 Jul 2019 20:03

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