Bidirectional equalization based on error propagation detection in long-range underwater acoustic communication SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 3 time in Scopus
Title
Bidirectional equalization based on error propagation detection in long-range underwater acoustic communication
Author(s)
Kim, Hyeonsu; Kim, Sunhyo; Choi, Jee Woong; Bae, Ho Seuk
KIOST Author(s)
KIM, Sunhyo(김선효)
Publication Year
2019-07-01
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
ISSN
0021-4922
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/579
DOI
10.7567/1347-4065/ab1130
Bibliographic Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, v.58, 2019
Publisher
IOP PUBLISHING LTD
Subject
DECISION-FEEDBACK EQUALIZER
Type
Article
Language
English
Document Type
Article
Publisher
IOP PUBLISHING LTD
Related Researcher
Research Interests

Underwater acoustics signal processing,SONAR detection performance analysis,Underwater acoustic sensor networks,수중 음향 신호 처리,소나 탐지 성능 분석,수중 음향 센서 네트워크

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