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| Presentation | 2016-12-01 15:30 [Poster Presentation] A Study on Hybrid PWM/PAM Dimming Control for Digital Color Shift Keying Using RGB-LED Array Jumpei Okumura, Yusuke Kozawa, Yohtaro Umeda (TUS)  WBS2016-66 ITS2016-33 RCC2016-55 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we consider a hybrid pulse width modulation / pulse amplitude modulation (PWM/PAM) system for digital color shift keying (DCSK) using RGB-LED array as a method of dimming support for visible light communication. DCSK is an optical intensity modulation scheme which transmits data imperceptibly through the variation of the color emitted by red, green and blue light emitting diodes. In DCSK, the variation can be represented by the digitally controlled "on-off" intensities of multiple RGB-LEDs. Generally, for the dimming control system of DCSK, two kinds of scheme are considered. One is the dimming control by PWM which changes the duty cycle of optical transmit signals, and the other is the dimming control by digitally controlled PAM with coordinated multiple RGB-LEDs usage. In the proposed system, PWM and PAM are combined to realize wider dimming range than PAM and higher spectral efficiency than PWM. We evaluate the error performances of the proposed system, DCSK with PWM and DCSK with PAM from simulation analysis under several measured light dimming levels. Consequently, the proposed system can improve the averaged received signal energy-to-noise ratio per symbol compared with DCSK with PWM and DCSK with PAM. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | visible light communication / color shift keying / digital color shift keying / LED / dimming control / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 337, WBS2016-66, pp. 107-112, Dec. 2016. | |
| Paper # | WBS2016-66 | |
| Date of Issue | 2016-11-24 (WBS, ITS, RCC) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | WBS2016-66 ITS2016-33 RCC2016-55 |
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| Conference Information | |
| Committee | WBS RCC ITS |
| Conference Date | 2016-12-01 - 2016-12-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sunport Hall Takamatsu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ITS Communications, Reliable Communication and Control, Rader and Sensing, etc. |
| Paper Information | |
| Registration To | WBS |
| Conference Code | 2016-12-WBS-RCC-ITS |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Hybrid PWM/PAM Dimming Control for Digital Color Shift Keying Using RGB-LED Array |
| Sub Title (in English) | |
| Keyword(1) | visible light communication |
| Keyword(2) | color shift keying |
| Keyword(3) | digital color shift keying |
| Keyword(4) | LED |
| Keyword(5) | dimming control |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Jumpei Okumura |
| 1st Author's Affiliation | Tokyo University of Science (TUS) |
| 2nd Author's Name | Yusuke Kozawa |
| 2nd Author's Affiliation | Tokyo University of Science (TUS) |
| 3rd Author's Name | Yohtaro Umeda |
| 3rd Author's Affiliation | Tokyo University of Science (TUS) |
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| Speaker | Author-1 |
| Date Time | 2016-12-01 15:30:00 |
| Presentation Time | 120 minutes |
| Registration for | WBS |
| Paper # | WBS2016-66, ITS2016-33, RCC2016-55 |
| Volume (vol) | vol.116 |
| Number (no) | no.337(WBS), no.338(ITS), no.339(RCC) |
| Page | pp.107-112 |
| #Pages | 6 |
| Date of Issue | 2016-11-24 (WBS, ITS, RCC) |
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