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Performance Comparison of Doppler Scale Estimation Methods for Underwater Acoustic OFDM
Joint Authors
Shi, Zhijie
Yang, T. C.
Zhou, Shengli
Wan, Lei
Wang, Zhaohui
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-30
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Engineering Sciences and Information Technology
Information Technology and Computer Science
Abstract EN
Doppler scale estimation is one critical step needed by the resampling operation in acoustic communication receivers.
In this paper, we compare different Doppler scale estimation methods using either cyclic-prefixed (CP) or zero-padded (ZP) orthogonal-frequency division-multiplexing (OFDM) waveforms.
For a CP-OFDM preamble, a self-correlation method allows for blind Doppler scale estimation based on an embedded repetition structure while a cross-correlation method is available with the knowledge of the waveform.
For each received ZP-OFDM block, the existence of null subcarriers allows for blind Doppler scale estimation.
In addition, a pilot-aided method and a decision-aided method are applicable based on cross-correlation with templates constructed from symbols on pilot subcarriers only and from symbols on all subcarriers after data decoding, respectively.
This paper carries out extensive comparisons among these methods using both simulated and real experimental data.
Further, the applicabilities of these methods to distributed multiuser systems are investigated.
American Psychological Association (APA)
Wan, Lei& Wang, Zhaohui& Zhou, Shengli& Yang, T. C.& Shi, Zhijie. 2012. Performance Comparison of Doppler Scale Estimation Methods for Underwater Acoustic OFDM. Journal of Electrical and Computer Engineering،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-491807
Modern Language Association (MLA)
Wan, Lei…[et al.]. Performance Comparison of Doppler Scale Estimation Methods for Underwater Acoustic OFDM. Journal of Electrical and Computer Engineering No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-491807
American Medical Association (AMA)
Wan, Lei& Wang, Zhaohui& Zhou, Shengli& Yang, T. C.& Shi, Zhijie. Performance Comparison of Doppler Scale Estimation Methods for Underwater Acoustic OFDM. Journal of Electrical and Computer Engineering. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-491807
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491807