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Paper Abstract and Keywords
Presentation 2014-02-17 11:30
Alamouti-Type Coding for Visible Light Communication Based on Direct Detection Using Image Sensor
Yuta Amano, Koji Kamakura (CIT), Takaya Yamazato (Nagoya Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes Alamouti-type space time (ST) coding to visible light communication (VLC) using light emitting diodes (LEDs) and image sensor with a high-speed camera.
Although multiple LEDs of an array are used as transmitters, the received signal is essentially the image of the transmitting element, whose size in pixel reduces with distance.
When the receiver captures the LED array at a distance where images of two neighboring LEDs in the array are not separated at the image plane,
such distortion depreciates the symbol decision quality.
Our proposed scheme aims at expanding the communication range limited by the pixel resolution of image sensor.
Our implemented prototype demonstrates that ST coding is feasible to achieve 48,m error-free transmission range while the repetition transmission achieves 26,m error-free range.
Keyword (in Japanese) (See Japanese page) 
(in English) Visible light communications / Free-space optical systems / Optical wireless communications / LED traffic lights / Alamouti type space-time coding (STC) / Intensity modulation and direct detection / Image sensor communication /  
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Conference Information
Committee IEICE-ITS IEICE-IE AIT HI ME  
Conference Date 2014-02-17 - 2014-02-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ITS Image Processing, etc. 
Paper Information
Registration To IEICE-ITS 
Conference Code 2014-02-ITS-IE-AIT-HI-ME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Alamouti-Type Coding for Visible Light Communication Based on Direct Detection Using Image Sensor 
Sub Title (in English)  
Keyword(1) Visible light communications  
Keyword(2) Free-space optical systems  
Keyword(3) Optical wireless communications  
Keyword(4) LED traffic lights  
Keyword(5) Alamouti type space-time coding (STC)  
Keyword(6) Intensity modulation and direct detection  
Keyword(7) Image sensor communication  
Keyword(8)  
1st Author's Name Yuta Amano  
1st Author's Affiliation Chiba Institute of Technology (CIT)
2nd Author's Name Koji Kamakura  
2nd Author's Affiliation Chiba Institute of Technology (CIT)
3rd Author's Name Takaya Yamazato  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2014-02-17 11:30:00 
Presentation Time 15 minutes 
Registration for IEICE-ITS 
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Volume (vol) vol.38 
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