Bidirectional equalization based on error propagation detection in long-range underwater acoustic communication
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Title
- Bidirectional equalization based on error propagation detection in long-range underwater acoustic communication
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Author(s)
- Kim, Hyeonsu; Kim, Sunhyo; Choi, Jee Woong; Bae, Ho Seuk
- KIOST Author(s)
- KIM, Sun Hyo(김선효)
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Alternative Author(s)
- 김선효
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Publication Year
- 2019-07-01
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Abstract
- Bidirectional equalization is a typical equalization method that can compensate for the channel effectively using multichannel time-reversal combining followed by single-channel decision-feedback equalization. However, because conventional bidirectional equalization employs decision-feedback equalizers, performance can be significantly degraded if errors propagate. In this paper, we propose a method to improve the performance of bidirectional equalization by detecting error propagation and selecting the type of equalizer. The proposed method reduces the error rate by applying a decision-direct equalizer instead of a decision-feedback equalizer in the event of error propagation. Simulation results and analysis of experimental long-range communication data show that the proposed method produces superior performance in bidirectional equalization. (C) 2019 The Japan Society of Applied Physics
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ISSN
- 0021-4922
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/579
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DOI
- 10.7567/1347-4065/ab1130
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Bibliographic Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.58, 2019
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Publisher
- IOP PUBLISHING LTD
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Subject
- DECISION-FEEDBACK EQUALIZER
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Type
- Article
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Language
- English
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Document Type
- Article
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