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

Title
Bidirectional equalization based on error propagation detection in long-range underwater acoustic communication
Author
최지웅
Issue Date
2019-06
Publisher
IOP PUBLISHING LTD
Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, v. 58, Article no. SGGF01
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
URI
https://iopscience.iop.org/article/10.7567/1347-4065/ab1130/metahttp://repository.hanyang.ac.kr/handle/20.500.11754/116933
ISSN
0021-4922; 1347-4065
DOI
10.7567/1347-4065/ab1130
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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