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Paper Abstract and Keywords
Presentation 2022-03-01 14:30
A Study of Underwater Optical Wireless Communications Using THP
Kazuhiko Nakamura, Masanori Hanawa (Univ. of Yamanashi)
Abstract (in Japanese) (See Japanese page) 
(in English) In this article, the effect of Tomlinson-Harashima Precoding (THP) as a pre-equalizer for bandwidth compensation and inter-symbol interference suppression have been investigated by computer simulations and transmission experiments in underwater optical wireless communications. The results show that the peak amplitude of the THP output can be moderated by about 18% compared to the FIR type pre-equalizer output, and the THP is also effective in suppressing the DC offset fluctuation. The eye diagram and bit error have been measured and evaluated by underwater transmission experiments. It is shown that the received optical power required to achieve a bit error rate of 10-3 can be reduced by about 2 dB when THP was applied.
Keyword (in Japanese) (See Japanese page) 
(in English) Underwater Optical Wireless Communication / THP / Visible Light Communication / Pre-Equalization / / / /  
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Conference Information
Committee UWT  
Conference Date 2022-03-01 - 2022-03-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Underwater Wireless Technology 
Paper Information
Registration To UWT 
Conference Code 2022-03-UWT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Underwater Optical Wireless Communications Using THP 
Sub Title (in English)  
Keyword(1) Underwater Optical Wireless Communication  
Keyword(2) THP  
Keyword(3) Visible Light Communication  
Keyword(4) Pre-Equalization  
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1st Author's Name Kazuhiko Nakamura  
1st Author's Affiliation University of Yamanashi (Univ. of Yamanashi)
2nd Author's Name Masanori Hanawa  
2nd Author's Affiliation University of Yamanashi (Univ. of Yamanashi)
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Speaker Author-1 
Date Time 2022-03-01 14:30:00 
Presentation Time 25 minutes 
Registration for UWT 
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