Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb
In this work, we experimentally achieved a real-time video optical wireless transmission which can broadcast two users in different positions, simultaneously. Firstly, a single-pixel 50-μm micro-LED is designed and fabricated on a GaN-based wafer and then two micro-LED chips are connected...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9416731/ |
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| author | Zixian Wei Zhongxu Liu Zhaoming Wang Mutong Li Chien-Ju Chen Meng-Chyi Wu Songping Mai Faisal Nadeem Khan Changyuan Yu H. Y. Fu |
| author_facet | Zixian Wei Zhongxu Liu Zhaoming Wang Mutong Li Chien-Ju Chen Meng-Chyi Wu Songping Mai Faisal Nadeem Khan Changyuan Yu H. Y. Fu |
| author_sort | Zixian Wei |
| collection | DOAJ |
| description | In this work, we experimentally achieved a real-time video optical wireless transmission which can broadcast two users in different positions, simultaneously. Firstly, a single-pixel 50-μm micro-LED is designed and fabricated on a GaN-based wafer and then two micro-LED chips are connected as parallel form in a single bulb. The transceiver based on two FPGA boards is used to generate quadrature amplitude modulation-orthogonal frequency division multiplexed (QAM-OFDM) signals and measure the communication performance of the VLC system. The low-power micro-LEDs bulb emits 0.8 mW optical power through two optical paths at 20 mA driving current, and the modulation bandwidths for two users’ access are 90 MHz and 73 MHz, respectively. In this two-user real-time video transmission system, the total data rate exceeds 105.54 Mbps without naked eye discernable distortion over 2-m free-space distance. Different from traditional point-to-point links, this work demonstrates the possibility of flexible high-speed multi-user real-time video optical wireless transmission based on a parallel micro-LEDs bulb. |
| format | Article |
| id | doaj-art-dbaa509c759d415cbfea8eacdaf4e668 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-dbaa509c759d415cbfea8eacdaf4e6682025-08-20T03:15:50ZengIEEEIEEE Photonics Journal1943-06552021-01-0113311110.1109/JPHOT.2021.30757019416731Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs BulbZixian Wei0https://orcid.org/0000-0001-6360-124XZhongxu Liu1Zhaoming Wang2Mutong Li3Chien-Ju Chen4Meng-Chyi Wu5https://orcid.org/0000-0002-4428-803XSongping Mai6Faisal Nadeem Khan7Changyuan Yu8https://orcid.org/0000-0002-3185-0441H. Y. Fu9https://orcid.org/0000-0002-4276-0011Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, ChinaDepartment of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong KongTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, ChinaTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, ChinaInstitute of Electronics Engineering, National Tsing Hua University, Hsinchu, TaiwanInstitute of Electronics Engineering, National Tsing Hua University, Hsinchu, TaiwanTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, ChinaTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, ChinaDepartment of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong KongTsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, ChinaIn this work, we experimentally achieved a real-time video optical wireless transmission which can broadcast two users in different positions, simultaneously. Firstly, a single-pixel 50-μm micro-LED is designed and fabricated on a GaN-based wafer and then two micro-LED chips are connected as parallel form in a single bulb. The transceiver based on two FPGA boards is used to generate quadrature amplitude modulation-orthogonal frequency division multiplexed (QAM-OFDM) signals and measure the communication performance of the VLC system. The low-power micro-LEDs bulb emits 0.8 mW optical power through two optical paths at 20 mA driving current, and the modulation bandwidths for two users’ access are 90 MHz and 73 MHz, respectively. In this two-user real-time video transmission system, the total data rate exceeds 105.54 Mbps without naked eye discernable distortion over 2-m free-space distance. Different from traditional point-to-point links, this work demonstrates the possibility of flexible high-speed multi-user real-time video optical wireless transmission based on a parallel micro-LEDs bulb.https://ieeexplore.ieee.org/document/9416731/Visible light communication (VLC)multi-user communicationparallel micro-LEDsFPGA transceiver |
| spellingShingle | Zixian Wei Zhongxu Liu Zhaoming Wang Mutong Li Chien-Ju Chen Meng-Chyi Wu Songping Mai Faisal Nadeem Khan Changyuan Yu H. Y. Fu Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb IEEE Photonics Journal Visible light communication (VLC) multi-user communication parallel micro-LEDs FPGA transceiver |
| title | Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb |
| title_full | Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb |
| title_fullStr | Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb |
| title_full_unstemmed | Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb |
| title_short | Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb |
| title_sort | real time multi user video optical wireless transmission based on a parallel micro leds bulb |
| topic | Visible light communication (VLC) multi-user communication parallel micro-LEDs FPGA transceiver |
| url | https://ieeexplore.ieee.org/document/9416731/ |
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