Title :
Color-filter-free WDM MIMO RGB-LED visible light communication system using mobile-phone camera
Author :
Shih-Hao Chen ; Chi-Wai Chow
Author_Institution :
Dept. of Photonics & Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
Color-Filter-Free wavelength division multiplexing (WDM) Multiple-input and multiple-output (MIMO) Red-Green-Blue (RGB)-light emitting diode (LED) visible light communication (VLC) system using mobile-phone camera is proposed and demonstrated. Neither color filter nor chromatic color information is required in the proposed receiver (Rx). All image signal processing is based on the grayscale image, which can greatly simplify the WDM MIMO RGB-LED VLC system and save the cost of color splitting process. A proof-of-concept experiment is conducted. Optimized Scale-invariant feature transform (SIFT) algorithm is used to achieve the design.
Keywords :
MIMO communication; image colour analysis; light emitting diodes; mobile handsets; transforms; wavelength division multiplexing; SIFT algorithm; VLC system; WDM MIMO RGB-LED system; color splitting process; color-filter-free system; grayscale image; image signal processing; light emitting diode system; mobile-phone camera; multiple-input and multiple-output system; proof-of-concept experiment; red-green-blue system; scale-invariant feature transform; wavelength division multiplexing; Arrays; Feature extraction; Image color analysis; Light emitting diodes; MIMO; Training; Wavelength division multiplexing; Color-Filter-Free; Multiple-input and multiple-output (MIMO); Visible Light Communication (VLC);
Conference_Titel :
Optical Communications and Networks (ICOCN), 2014 13th International Conference on
Conference_Location :
Suzhou
DOI :
10.1109/ICOCN.2014.6987118
