Presentation 2013-10-31
Enhancement of PPM with dimming control for indoor visible light communication
Takashi OZAKI, Yusuke KOZAWA, Yohtaro UMEDA,
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Abstract(in English) In this paper, we have proposed the new variable multi-pulse pulse-position-modulation (VMPPM) system that using non-selected slots for dimming control. In VMPPM, r slots are selected from n MPPM slots and one sub-slot is selected from two sub-slots in one slot duration in each selected r slot according to source data 「log_2 _nC_r」+r[bit/frame].Therefore, VMPPM can achieve higher data transmission rate than the conventional variable PPM (VPPM).Additionally, VMPPM can represent the dimming level of n-r+1 stages by using the empty n-r slots. Moreover, the symbol error rate (SER) of VMPPM is evaluated through theoretical analysis by taking into account noises of assuming the actual environment. Also, we compare both the error rate performance and the spectral efficiency of VMPPM with those of VPPM. Consequently, the data transmission rate, the error rate performance and the spectral efficiency of VMPPM are better than those of VPPM.
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Keyword(in English) Visible light communication / LED / PPM / MPPM / dimming control
Paper # WBS2013-22
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Conference Information
Committee WBS
Conference Date 2013/10/24(1days)
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Registration To Wideband System(WBS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Enhancement of PPM with dimming control for indoor visible light communication
Sub Title (in English)
Keyword(1) Visible light communication
Keyword(2) LED
Keyword(3) PPM
Keyword(4) MPPM
Keyword(5) dimming control
1st Author's Name Takashi OZAKI
1st Author's Affiliation Department of Electrical Engineering,Faculty of Science and Technokogy,Tokyo University of Science()
2nd Author's Name Yusuke KOZAWA
2nd Author's Affiliation /
3rd Author's Name Yohtaro UMEDA
3rd Author's Affiliation
Date 2013-10-31
Paper # WBS2013-22
Volume (vol) vol.113
Number (no) 275
Page pp.pp.-
#Pages 6
Date of Issue