Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study
The directionality of optical signals provides an opportunity for efficient space reuse of optical links in visible light communication (VLC). Space reuse in VLC can enable multiple-access communication from multiple light emitting transmitters. Traditional VLC system design using photo-receptors re...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/9/5/826 |
| _version_ | 1797567717228675072 |
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| author | MD Rashed Rahman Kehinde Adedara Ashwin Ashok |
| author_facet | MD Rashed Rahman Kehinde Adedara Ashwin Ashok |
| author_sort | MD Rashed Rahman |
| collection | DOAJ |
| description | The directionality of optical signals provides an opportunity for efficient space reuse of optical links in visible light communication (VLC). Space reuse in VLC can enable multiple-access communication from multiple light emitting transmitters. Traditional VLC system design using photo-receptors requires at least one receiving photodetector element for each light emitter, thus constraining VLC to always require a light-emitter to light-receptor element pair. In this paper, we propose, design and evaluate a novel architecture for VLC that can enable multiple-access reception using a photoreceptor receiver that uses only a single photodiode. The novel design includes a liquid-crystal-display (LCD) based shutter system that can be automated to control and enable selective reception of light beams from multiple transmitters. We evaluate the feasibility of multiple access on a single photodiode from two light emitting diode (LED) transmitters and the performance of the communication link using bit-error-rate (BER) and packet-error-rate (PER) metrics. Our experiment and trace based evaluation through proof-of-concept implementation reveals the feasibility of multiple LED reception on a single photodiode. We further evaluate the system in controlled mobile settings to verify the adaptability of the receiver when the LED transmitter changes position. |
| first_indexed | 2024-03-10T19:46:27Z |
| format | Article |
| id | doaj.art-2ba871bc2212443a8714d01097d6bd2a |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T19:46:27Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-2ba871bc2212443a8714d01097d6bd2a2023-11-20T00:44:19ZengMDPI AGElectronics2079-92922020-05-019582610.3390/electronics9050826Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept StudyMD Rashed Rahman0Kehinde Adedara1Ashwin Ashok2Department of Computer Science, Georgia State University, Atlanta, GA 30303, USADepartment of Computer Science, Georgia State University, Atlanta, GA 30303, USADepartment of Computer Science, Georgia State University, Atlanta, GA 30303, USAThe directionality of optical signals provides an opportunity for efficient space reuse of optical links in visible light communication (VLC). Space reuse in VLC can enable multiple-access communication from multiple light emitting transmitters. Traditional VLC system design using photo-receptors requires at least one receiving photodetector element for each light emitter, thus constraining VLC to always require a light-emitter to light-receptor element pair. In this paper, we propose, design and evaluate a novel architecture for VLC that can enable multiple-access reception using a photoreceptor receiver that uses only a single photodiode. The novel design includes a liquid-crystal-display (LCD) based shutter system that can be automated to control and enable selective reception of light beams from multiple transmitters. We evaluate the feasibility of multiple access on a single photodiode from two light emitting diode (LED) transmitters and the performance of the communication link using bit-error-rate (BER) and packet-error-rate (PER) metrics. Our experiment and trace based evaluation through proof-of-concept implementation reveals the feasibility of multiple LED reception on a single photodiode. We further evaluate the system in controlled mobile settings to verify the adaptability of the receiver when the LED transmitter changes position.https://www.mdpi.com/2079-9292/9/5/826visible light communicationmultiple access communicationhigh data ratespatial multiplexingmobile VLC |
| spellingShingle | MD Rashed Rahman Kehinde Adedara Ashwin Ashok Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study Electronics visible light communication multiple access communication high data rate spatial multiplexing mobile VLC |
| title | Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study |
| title_full | Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study |
| title_fullStr | Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study |
| title_full_unstemmed | Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study |
| title_short | Enabling Multiple Access in Visible Light Communication Using Liquid Crystal Displays: A Proof-of-Concept Study |
| title_sort | enabling multiple access in visible light communication using liquid crystal displays a proof of concept study |
| topic | visible light communication multiple access communication high data rate spatial multiplexing mobile VLC |
| url | https://www.mdpi.com/2079-9292/9/5/826 |
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