3-Gbit/s Indoor Visible Light Communications Using Optical DiversitySchemes

Collection with item attached
2015
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/473437.do
DOI
10.1109/JPHOT.2015.2494498
Title
3-Gbit/s Indoor Visible Light Communications Using Optical DiversitySchemes
Description
This work was supported by the Basic Science Research Program throughthe National Research Foundation of Korea funded by the Ministry ofEducation under Grant 2015R1D1A3A01017713.
abstract
A 3-Gb/s high-speed indoor visible light communication system using optical diversity schemes is presented. A double optical diversity (DOD) scheme in time and frequency is employed with selection combining (SC) on the basis of red, green, and blue (RGB) light-emitting diodes (LEDs). In the proposed scheme, the original data and the delayed versions of this data are transmitted simultaneously by multiplying with orthogonal frequency in order to create diversity effect over the transmission. In addition, RGB LEDs are used for parallel transmission of data, thus resulting in an increase in the data speed. At the receiver, color filters are used to filter out for the desired signal, and SC is performed to obtain the most probable bits. Simulation results demonstrate that the proposed scheme is robust and efficient to overcome the effect of multiple reflections with a link margin of approximately 10 dB, as compared with a conventional on-off keying (OOK) modulation scheme at a bit error rate (BER) of 10(-6). Moreover, the scheme achieves a data rate of 3 Gb/s with a BER of 10(-6) at a signal-to-noise ratio (SNR) value of 3.6 dB over most locations in an indoor visible light communication (VLC) environment.
provenance
Made available in Cube on 2018-09-28T10:19:32Z (GMT). No. of bitstreams: 0
language
English
author
Sewaiwar, Atul
Han, Phyu Phyu
Chung, Yeon Ho
accessioned
2018-09-28T10:19:32Z
available
2018-09-28T10:19:32Z
issued
2015
citation
IEEE PHOTONICS JOURNAL(7): 6
issn
1943-0655
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/473437.do
Funder
교육부
Funding Program
이공학개인기초연구지원
Project ID
1345234156
Jurisdiction
Rep.of Korea
Project Name
Next Generation Smart Homes Technologies using Visible Light Motion Control in Multiuser Transmission Environments
rights
openAccess
subject
Visible light communications (VLC)
light-emitting diode (LED)
time-frequency diversity
selection combining
parallel transmission
type
article


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