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Multi-User Round-Trip Delay Ranging Scheme with Sparsely Allocated OFDM Signals

Staudinger, Emanuel and Dammann, Armin (2013) Multi-User Round-Trip Delay Ranging Scheme with Sparsely Allocated OFDM Signals. IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), London.

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Abstract

Ranging performance is a fundamental and crucial figure of merit for any position estimation technique. Cooperative positioning requires accurate range estimation with low latency. Common solutions employ time slots to sequentially range among all possible mobile nodes. In this case the number of ranging links increases quadratically with the number of users which increases latency significantly. We propose a subcarrier-interleaved round-trip delay ranging scheme with amplify and forward relaying to overcome this drawback. We show that we can reach linear complexity and significantly reduce latency. The obtained low latency allows higher flexibility and higher scalability compared to existing solutions. Furthermore, we study theoretical performances with derived Cramér-Rao lower-bounds for signals with orthogonal frequency division multiplex. Simulation results with 3GPP-LTE system parameters and our proposed sparse allocation show that our approach is well suited for low-latency and highly accurate range estimation.

Item URL in elib:https://elib.dlr.de/89763/
Document Type:Conference or Workshop Item (Speech)
Title:Multi-User Round-Trip Delay Ranging Scheme with Sparsely Allocated OFDM Signals
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Staudinger, EmanuelEmanuel.Staudinger (at) dlr.deUNSPECIFIED
Dammann, ArminUNSPECIFIEDUNSPECIFIED
Date:8 September 2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Bandwidth Delays Distance measurement Estimation Noise OFDM
Event Title:IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC)
Event Location:London
Event Type:international Conference
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 - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Staudinger, Dr.-Ing. Emanuel
Deposited On:31 Jul 2014 09:34
Last Modified:29 Apr 2015 11:19

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