Performance limits of channel parameter estimation for joint communication and positioning.

Schmeink, K., Adam, R. and Hoeher, Peter (2012) Performance limits of channel parameter estimation for joint communication and positioning. EURASIP Journal on Advances in Signal Processing . DOI 10.1186/1687-6180-2012-178.

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Abstract

Recently, a system concept for joint communication and positioning has been proposed by the authors. Channel parameter estimation (CPE) is the core part of this system proposal. Parameters of the physical channel, which can be exploited for positioning, are estimated based on the assumption that a priori knowledge about pulse shaping and receive filtering is available. At the same time, channel estimates of the equivalent discrete-time channel model, which are needed for data detection, are obtained inherently. This article focusses on the positioning part of the system proposal. Performance limits for CPE in terms of Cramer-Rao lower bounds are determined for different channel models. The influence of oversampling and of different channel characteristics is investigated. Oversampling proves especially helpful in dense multipath scenarios, which are most challenging. Based on the presented results, oversampling with a factor of two is recommended in order to improve the positioning accuracy. Excessive oversampling like in conventional global positioning system receivers is not necessary.

Document Type: Article
Additional Information: Univ Kiel, Fac Engn, D-24143 Kiel, Germany. Schmeink, K (reprint author), Univ Kiel, Fac Engn, Kaiserstr 2, D-24143 Kiel, Germany. kas@tf.uni-kiel.de
Keywords: division multiple-access delay estimation algorithm
Research affiliation: Kiel University
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1186/1687-6180-2012-178
ISSN: 1687-6180
Projects: Future Ocean
Date Deposited: 14 May 2014 09:37
Last Modified: 23 Sep 2019 23:44
URI: http://oceanrep.geomar.de/id/eprint/24238

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