Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera
Light-emitting diodes (LEDs) have been deployed for various applications in our daily lives. Similarly, image sensors or cameras integrated into mobile phones have become common. Hence, visible light communication (VLC) using LED and mobile phone cameras is attractive and provides low-cost wireless...
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| Format: | Article |
| Language: | English |
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IEEE
2014-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/6977905/ |
| _version_ | 1819120445018865664 |
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| author | Shih-Hao Chen Chi-Wai Chow |
| author_facet | Shih-Hao Chen Chi-Wai Chow |
| author_sort | Shih-Hao Chen |
| collection | DOAJ |
| description | Light-emitting diodes (LEDs) have been deployed for various applications in our daily lives. Similarly, image sensors or cameras integrated into mobile phones have become common. Hence, visible light communication (VLC) using LED and mobile phone cameras is attractive and provides low-cost wireless communication. In this paper, we propose and demonstrate a VLC system using color-shift-keying (CSK) modulation and code-division multiple-access (CDMA) technology simultaneously for the first time; a mobile phone camera is used as the receiver (Rx). CSK is used to enhance the VLC system capacity and to mitigate the single color light interference, whereas CDMA allows multiple users to access the network. The system design and operation mechanism of the proposed CSK-CDMA VLC system are discussed. A proof-of-concept demonstration is performed, and error-free transmission is achieved for multiple-access users. A 3-dB transmission gain is also obtained in each user when compared with the traditional on-off keying (OOK) modulation. |
| first_indexed | 2024-12-22T06:20:46Z |
| format | Article |
| id | doaj.art-6b3d08c3884c45049b47e095a9a540d8 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-22T06:20:46Z |
| publishDate | 2014-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-6b3d08c3884c45049b47e095a9a540d82022-12-21T18:35:58ZengIEEEIEEE Photonics Journal1943-06552014-01-01661610.1109/JPHOT.2014.23746126977905Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone CameraShih-Hao Chen0Chi-Wai Chow1Dept. of Photonics & the Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, TaiwanDept. of Photonics & the Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, TaiwanLight-emitting diodes (LEDs) have been deployed for various applications in our daily lives. Similarly, image sensors or cameras integrated into mobile phones have become common. Hence, visible light communication (VLC) using LED and mobile phone cameras is attractive and provides low-cost wireless communication. In this paper, we propose and demonstrate a VLC system using color-shift-keying (CSK) modulation and code-division multiple-access (CDMA) technology simultaneously for the first time; a mobile phone camera is used as the receiver (Rx). CSK is used to enhance the VLC system capacity and to mitigate the single color light interference, whereas CDMA allows multiple users to access the network. The system design and operation mechanism of the proposed CSK-CDMA VLC system are discussed. A proof-of-concept demonstration is performed, and error-free transmission is achieved for multiple-access users. A 3-dB transmission gain is also obtained in each user when compared with the traditional on-off keying (OOK) modulation.https://ieeexplore.ieee.org/document/6977905/Free space communicationOptical communicationsLight emitting diode (LED) |
| spellingShingle | Shih-Hao Chen Chi-Wai Chow Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera IEEE Photonics Journal Free space communication Optical communications Light emitting diode (LED) |
| title | Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera |
| title_full | Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera |
| title_fullStr | Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera |
| title_full_unstemmed | Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera |
| title_short | Color-Shift Keying and Code-Division Multiple-Access Transmission for RGB-LED Visible Light Communications Using Mobile Phone Camera |
| title_sort | color shift keying and code division multiple access transmission for rgb led visible light communications using mobile phone camera |
| topic | Free space communication Optical communications Light emitting diode (LED) |
| url | https://ieeexplore.ieee.org/document/6977905/ |
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