Presentation 2013-06-13
A Study on Visible Light CDMA Systems Using Inverted MPSC Sequences
Tomoko K. MATSUSHIMA, Masaki KAKUYAMA, Kotoku OMURA, Shoichiro YAMASAKI, Yuya MURATA, Yasuaki TERAMACHI,
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Abstract(in English) Visible light communication systems are suitable to realize secure indoor networks. In this paper, an optical CDMA scheme with EWO signaling and inverted sequences of a generalized MPSC as a signature code is proposed for visible light CDMA systems. Average light intensity and normalized intensity fluctuation of multiplexed signal are investigated by computer simulation. The proposed scheme has low intensity fluctuation and high average light intensity in comparison with the conventional EWO-MPSC scheme. We also implemented a visible light CDMA system with the proposed scheme. This system has some channels on each of which 31.25KHz MIDI data, coded with a generalized MPSC with a length of 64, is transmitted. It is confirmed that the system can correctly decode every MIDI data transmitted simultaneously.
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Keyword(in English) Visible light communication / Generalized MPSC / Inverted sequence / Optical CDMA
Paper # SIS2013-3
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Conference Date 2013/6/6(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) A Study on Visible Light CDMA Systems Using Inverted MPSC Sequences
Sub Title (in English)
Keyword(1) Visible light communication
Keyword(2) Generalized MPSC
Keyword(3) Inverted sequence
Keyword(4) Optical CDMA
1st Author's Name Tomoko K. MATSUSHIMA
1st Author's Affiliation Polytechnic University()
2nd Author's Name Masaki KAKUYAMA
2nd Author's Affiliation Polytechnic University
3rd Author's Name Kotoku OMURA
3rd Author's Affiliation Polytechnic University
4th Author's Name Shoichiro YAMASAKI
4th Author's Affiliation Polytechnic University
5th Author's Name Yuya MURATA
5th Author's Affiliation Dept. of Computational Intelligence and Systems Science, Interdisciplinary Graduate School Science and Engineering, Tokyo Institute of Technology
6th Author's Name Yasuaki TERAMACHI
6th Author's Affiliation Brain Functions Laboratory Inc.
Date 2013-06-13
Paper # SIS2013-3
Volume (vol) vol.113
Number (no) 78
Page pp.pp.-
#Pages 6
Date of Issue