OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics
Organic light-emitting diodes (OLEDs) show several attractive features superior to traditional semiconductor LEDs for visible light communication (VLC). This paper experimentally tests and models the radiation pattern of a bent OLED panel for the first time. Different from a Lambertian radiation pat...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8113452/ |
| _version_ | 1818369804213420032 |
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| author | Hanjie Chen Zhengyuan Xu |
| author_facet | Hanjie Chen Zhengyuan Xu |
| author_sort | Hanjie Chen |
| collection | DOAJ |
| description | Organic light-emitting diodes (OLEDs) show several attractive features superior to traditional semiconductor LEDs for visible light communication (VLC). This paper experimentally tests and models the radiation pattern of a bent OLED panel for the first time. Different from a Lambertian radiation pattern, we propose an improved analytic mixed Gaussian model to describe the rotational radiation asymmetry, whose parameter values are found by applying an expectation-maximization algorithm for curve fitting with measurements. The OLED radiation pattern is observed to show strong directionality along the bent axes. Its impact on VLC channel characteristics is further studied. Compared with the Lambertian source, the OLED source is more flexible in radiation pattern control and shows advantages in smaller root mean square delay spread and optical path loss. |
| first_indexed | 2024-12-13T23:29:39Z |
| format | Article |
| id | doaj.art-4cfa16e959d44c598f4f195df70c4685 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-13T23:29:39Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-4cfa16e959d44c598f4f195df70c46852022-12-21T23:27:27ZengIEEEIEEE Photonics Journal1943-06552018-01-0110211010.1109/JPHOT.2017.27742418113452OLED Panel Radiation Pattern and Its Impact on VLC Channel CharacteristicsHanjie Chen0https://orcid.org/0000-0001-9800-8745Zhengyuan Xu1https://orcid.org/0000-0001-9075-8875Key Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, School of Information Science and Technology, University of Science and Technology of China, Hefei, ChinaKey Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, School of Information Science and Technology, University of Science and Technology of China, Hefei, ChinaOrganic light-emitting diodes (OLEDs) show several attractive features superior to traditional semiconductor LEDs for visible light communication (VLC). This paper experimentally tests and models the radiation pattern of a bent OLED panel for the first time. Different from a Lambertian radiation pattern, we propose an improved analytic mixed Gaussian model to describe the rotational radiation asymmetry, whose parameter values are found by applying an expectation-maximization algorithm for curve fitting with measurements. The OLED radiation pattern is observed to show strong directionality along the bent axes. Its impact on VLC channel characteristics is further studied. Compared with the Lambertian source, the OLED source is more flexible in radiation pattern control and shows advantages in smaller root mean square delay spread and optical path loss.https://ieeexplore.ieee.org/document/8113452/Organic LEDradiation patternvisible light communication (VLC)channel characteristics. |
| spellingShingle | Hanjie Chen Zhengyuan Xu OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics IEEE Photonics Journal Organic LED radiation pattern visible light communication (VLC) channel characteristics. |
| title | OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics |
| title_full | OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics |
| title_fullStr | OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics |
| title_full_unstemmed | OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics |
| title_short | OLED Panel Radiation Pattern and Its Impact on VLC Channel Characteristics |
| title_sort | oled panel radiation pattern and its impact on vlc channel characteristics |
| topic | Organic LED radiation pattern visible light communication (VLC) channel characteristics. |
| url | https://ieeexplore.ieee.org/document/8113452/ |
| work_keys_str_mv | AT hanjiechen oledpanelradiationpatternanditsimpactonvlcchannelcharacteristics AT zhengyuanxu oledpanelradiationpatternanditsimpactonvlcchannelcharacteristics |