Presentation 2019-11-06
[Poster Presentation] A Study on Majority-Decision-based Divisional Maximum Likelihood Decoding for Image Sensor Communication
Zhengqiang Tang, Shintaro Arai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Visible light communication (VLC) using an image sensor as a receiver, referred to as an image sensor communication (ISC), suffers from an inability to correctly recover data if an image captured by the receiver is degraded due to defocusing. This study proposes a novel demodulation method to overcome this problem. The proposed method first divides the LED transmitter area on the received image into two parts and sequentially demodulates the data using our previously proposed maximum likelihood decoding (MLD) method that uses pseudo-captured images. Also, the receiver performs a majority decision using results of the Euclidean distances that are calculated for the MLD method and increases the reliability of demodulation. Under simulation conditions in this study, the proposed method achieves about 90% computational complexity reduction as compared with the previous MLD method while having almost equivalent communication performance as the previous one.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) LED / visible light communication (VLC) / image sensor communication (ISC) / maximum likelihood decoding (MLD) / pseudo-captured images / divisional demodulation / majority decision
Paper # WBS2019-28,ITS2019-19,RCC2019-59
Date of Issue 2019-10-30 (WBS, ITS, RCC)

Conference Information
Committee RCC / ITS / WBS
Conference Date 2019/11/6(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Nara Institute of Science and Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) ITS Communications, Reliable Communication and Control, Radar and Sensing, etc.
Chair Kazunori Hayashi(Osaka City Univ.) / Tomotaka Wada(Kansai Univ.) / Minoru Okada(NAIST)
Vice Chair Shunichi Azuma(Nagoya Univ.) / HUAN-BANG LI(NICT) / Yusuke Takatori(Kanagawa Inst. of Tech.) / Hiroyuki Hatano(Mie Univ.) / Koji Ohuchi(Shizuoka Univ.) / Kenichi Takizawa(NICT)
Secretary Shunichi Azuma(Kagawa Univ.) / HUAN-BANG LI(Osaka Univ.) / Yusuke Takatori(Univ. of Tokyo) / Hiroyuki Hatano(Saitama Univ.) / Koji Ohuchi(Kanagawa Univ.) / Kenichi Takizawa(Okayama Univ. of Science)
Assistant Toshinori Kagawa(NICT) / Masateru Ogura(NAIST) / Msataka Imao(Mitsubishi Electric) / Yanlei Gu(Ritsumeikan Univ.) / Kenshi Saho(Toyama Prefectural Univ.) / Kouichiro Hashiura(Akita Prefectural Univ.) / Duong Quang Thang(NAIST) / Masafumi Moriyama(NICT)

Paper Information
Registration To Technical Committee on Reliable Communication and Control / Technical Committee on Intelligent Transport Systems Technology / Technical Committee on Wideband System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] A Study on Majority-Decision-based Divisional Maximum Likelihood Decoding for Image Sensor Communication
Sub Title (in English)
Keyword(1) LED
Keyword(2) visible light communication (VLC)
Keyword(3) image sensor communication (ISC)
Keyword(4) maximum likelihood decoding (MLD)
Keyword(5) pseudo-captured images
Keyword(6) divisional demodulation
Keyword(7) majority decision
1st Author's Name Zhengqiang Tang
1st Author's Affiliation Okayama University of Science(Okayama Univ. of Sci.)
2nd Author's Name Shintaro Arai
2nd Author's Affiliation Okayama University of Science(Okayama Univ. of Sci.)
Date 2019-11-06
Paper # WBS2019-28,ITS2019-19,RCC2019-59
Volume (vol) vol.119
Number (no) WBS-268,ITS-269,RCC-270
Page pp.pp.27-30(WBS), pp.27-30(ITS), pp.27-30(RCC),
#Pages 4
Date of Issue 2019-10-30 (WBS, ITS, RCC)