Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication
In the literature, previous system designs are mainly focused on the use of direct-current light-emitting diodes (DC-LEDs) with fixed voltage bias. As alternating-current (AC)-LEDs are more energy efficient and becoming more and more popular, a driving system supporting AC-LEDs providing lighting an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2013-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/6572800/ |
| _version_ | 1818877278999805952 |
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| author | Y. F. Liu C. H. Yeh C. W. Chow |
| author_facet | Y. F. Liu C. H. Yeh C. W. Chow |
| author_sort | Y. F. Liu |
| collection | DOAJ |
| description | In the literature, previous system designs are mainly focused on the use of direct-current light-emitting diodes (DC-LEDs) with fixed voltage bias. As alternating-current (AC)-LEDs are more energy efficient and becoming more and more popular, a driving system supporting AC-LEDs providing lighting and visible light communication (VLC) functions is highly desirable. This paper investigates the alternating-signal-biased system design for VLC, which combines the AC bias voltage signal and electrical data signal to modulate both DC- and AC-LEDs. In the experiment, a 40-LED array is modulated by our proposed system that makes use of current from AC power source while maintaining nondistorted message signal transmission. On-off-keying and quadrature-phase-shift-keying formats are used, and data rates of 60 and 120 kb/s are demonstrated, respectively. The threshold voltage effect and the system extension to support AC-LED are discussed. The alternating-signal-biased system design supporting both DC- and AC-LEDs is also discussed. |
| first_indexed | 2024-12-19T13:55:45Z |
| format | Article |
| id | doaj.art-3b41430b173a4712b0f75e155c9845f9 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-19T13:55:45Z |
| publishDate | 2013-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-3b41430b173a4712b0f75e155c9845f92022-12-21T20:18:36ZengIEEEIEEE Photonics Journal1943-06552013-01-01547901806790180610.1109/JPHOT.2013.22747626572800Alternating-Signal-Biased System Design and Demonstration for Visible Light CommunicationY. F. Liu0C. H. Yeh1C. W. Chow2<formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula> Information and Communications Research Laboratories, Industrial Technology Research Institute (ITRI), Hsinchu, Taiwan<formula formulatype="inline"><tex Notation="TeX">$^{3}$</tex></formula>Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, Taipei , Taiwan<formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula>Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, TaiwanIn the literature, previous system designs are mainly focused on the use of direct-current light-emitting diodes (DC-LEDs) with fixed voltage bias. As alternating-current (AC)-LEDs are more energy efficient and becoming more and more popular, a driving system supporting AC-LEDs providing lighting and visible light communication (VLC) functions is highly desirable. This paper investigates the alternating-signal-biased system design for VLC, which combines the AC bias voltage signal and electrical data signal to modulate both DC- and AC-LEDs. In the experiment, a 40-LED array is modulated by our proposed system that makes use of current from AC power source while maintaining nondistorted message signal transmission. On-off-keying and quadrature-phase-shift-keying formats are used, and data rates of 60 and 120 kb/s are demonstrated, respectively. The threshold voltage effect and the system extension to support AC-LED are discussed. The alternating-signal-biased system design supporting both DC- and AC-LEDs is also discussed.https://ieeexplore.ieee.org/document/6572800/Visible light communication (VLC)AC-LEDOOKQPSK |
| spellingShingle | Y. F. Liu C. H. Yeh C. W. Chow Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication IEEE Photonics Journal Visible light communication (VLC) AC-LED OOK QPSK |
| title | Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication |
| title_full | Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication |
| title_fullStr | Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication |
| title_full_unstemmed | Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication |
| title_short | Alternating-Signal-Biased System Design and Demonstration for Visible Light Communication |
| title_sort | alternating signal biased system design and demonstration for visible light communication |
| topic | Visible light communication (VLC) AC-LED OOK QPSK |
| url | https://ieeexplore.ieee.org/document/6572800/ |
| work_keys_str_mv | AT yfliu alternatingsignalbiasedsystemdesignanddemonstrationforvisiblelightcommunication AT chyeh alternatingsignalbiasedsystemdesignanddemonstrationforvisiblelightcommunication AT cwchow alternatingsignalbiasedsystemdesignanddemonstrationforvisiblelightcommunication |