Preamble Design Technique for Accurate Timing/Positioning in High Doppler Environments
Accurate estimation of timing is essential for positioning in cellular systems because propagation delays from neighboring base stations are used to calculate the position of a mobile station. A preamble design technique for accurate timing estimation in cellular systems with high mobility, such as autonomous driving and unmanned aerial vehicles, is proposed herein. A generalized Zadoff-Chu (ZC) sequence is defined and decomposed into multiple short subsequences to reduce the Doppler effect on the timing estimation. The performance loss caused by the short sequence length is compensated by combining the subsequences using the repetition property of the ZC sequence. The properties of autocorrelation and cross-correlation of the generalized ZC sequence that employs a receiver processing (RP) scheme (subsequence decomposition and combining) are analyzed in the presence of Doppler. Finally, the suitability of the proposed sequence with the RP scheme, for accurate timing estimation in multicell environments with a high Doppler, is demonstrated using simulation results.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00189545
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Supplemental Notes:
- Copyright © 2022, IEEE.
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Authors:
- Kim, Yeong Jun
- Asim, Muhammad
- Cho, Yong Soo
- Publication Date: 2022-6
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 6784-6789
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Serial:
- IEEE Transactions on Vehicular Technology
- Volume: 71
- Issue Number: 6
- Publisher: Institute of Electrical and Electronics Engineers (IEEE)
- ISSN: 0018-9545
- Serial URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=25
Subject/Index Terms
- TRT Terms: Doppler shift; Drones; Mobile communication systems; Motor vehicles; Radio receivers
- Identifier Terms: Zadoff–Chu (ZC) sequence
- Subject Areas: Aviation; Data and Information Technology; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01852457
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 21 2022 11:42AM