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Please use this identifier to cite or link to this item:

http://hdl.handle.net/20.500.12358/27277
TitleOrthogonal frequency division multiplexing-based time difference of arrival estimation
Title in Arabicتقدير فرق وقت الوصول بمساعدة التقسيم الترددي المتعامد
Abstract

This study presents a spectral approach to estimate the time difference of arrival (TDOA) between a reference unit, composed of a pair of very close antennas (small baseline regarding the operating bandwidth), acting as a known fixed location transmitter, and a mobile unit acting as a single antenna receiver. It uses the channel frequency response (CFR) based on an orthogonal frequency division multiplexing multicarrier communications in a multiple-input-single-output antenna configuration. By handling the CFR responses, seen as wideband interferometric signals, the authors minimise a cost function expressed as the difference between measured channel response and a predefined direct model. Effects of noise and multipath are evaluated and mitigated by the averaging process. The overall performances of the system are analysed, and the experimental validation is systematically led. In a small-scale indoor environment, it has been shown that the TDOA can be accurately estimated with higher accuracy than the conventional techniques. The proposed method allows, for example, estimating TDOAs of about 2 ns when using a null-to-null bandwidth of 100 MHz. Such an approach, based on existing communication systems, and suitable for the 5G norm, can be useful for several applications needing accurate positioning, without requiring complex dedicated infrastructure.

Authors
Abudabbousa, Ahmad
Abu-Hudrouss, Ammar
Benlarbi-Delai, Aziz
TypeJournal Article
Date2019-09-17
LanguageEnglish
Subjects
radiofrequency interference; frequency response; direction-of-arrival estimation; indoor radio; OFDM modulation; mobile antennas; time-of-arrival estimation; 5G mobile communication
Published inIET in Communications
Series13/15
PublisherThe Institution of Engineering and Technology
Citation
Item linkItem Link
DOIhttps://doi.org/10.1049/iet-com.2019.0190
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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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