Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System
In this paper, an adaptive modulation scheme for visible light communication (VLC) system based on partially pre-distorted layered asymmetrically clipped optical orthogonal frequency division multiplexing (LACO-OFDM) is proposed. The clipping noise that falls on the higher layers in the conventional...
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8827661/ |
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| author | Yaqi Sun Fang Yang |
| author_facet | Yaqi Sun Fang Yang |
| author_sort | Yaqi Sun |
| collection | DOAJ |
| description | In this paper, an adaptive modulation scheme for visible light communication (VLC) system based on partially pre-distorted layered asymmetrically clipped optical orthogonal frequency division multiplexing (LACO-OFDM) is proposed. The clipping noise that falls on the higher layers in the conventional LACO-OFDM results in inter layer interference, which can be eliminated by the operation of pre-distortion at the expense of extra power consumption. The proposed partially pre-distorted scheme makes a tradeoff between error propagation and power cost to suit different transmission environments. The probability distribution functions of the conventional and pre-distorted LACO-OFDM schemes are analyzed and compared and the layers that should be pre-distorted in the proposed scheme is decided adaptively by maximizing the achievable rate. The computational complexity of the proposed scheme is also investigated, which is acceptable compared with the previous schemes. Simulation results show that the proposed scheme has a superior bit error rate performance compared with the conventional and pre-distorted LACO-OFDM schemes. |
| format | Article |
| id | doaj-art-71568f6e896e480d8ed9fe681b4f1aaf |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-71568f6e896e480d8ed9fe681b4f1aaf2025-08-20T03:33:14ZengIEEEIEEE Photonics Journal1943-06552019-01-0111511210.1109/JPHOT.2019.29402458827661Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC SystemYaqi Sun0Fang Yang1https://orcid.org/0000-0003-3575-5086Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, ChinaDepartment of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, ChinaIn this paper, an adaptive modulation scheme for visible light communication (VLC) system based on partially pre-distorted layered asymmetrically clipped optical orthogonal frequency division multiplexing (LACO-OFDM) is proposed. The clipping noise that falls on the higher layers in the conventional LACO-OFDM results in inter layer interference, which can be eliminated by the operation of pre-distortion at the expense of extra power consumption. The proposed partially pre-distorted scheme makes a tradeoff between error propagation and power cost to suit different transmission environments. The probability distribution functions of the conventional and pre-distorted LACO-OFDM schemes are analyzed and compared and the layers that should be pre-distorted in the proposed scheme is decided adaptively by maximizing the achievable rate. The computational complexity of the proposed scheme is also investigated, which is acceptable compared with the previous schemes. Simulation results show that the proposed scheme has a superior bit error rate performance compared with the conventional and pre-distorted LACO-OFDM schemes.https://ieeexplore.ieee.org/document/8827661/Visible light communication (VLC)orthogonal frequency division multiplexing (OFDM)layered asymmetrically clipped optical OFDM (LACO-OFDM)pre-distortioninter layer interference. |
| spellingShingle | Yaqi Sun Fang Yang Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System IEEE Photonics Journal Visible light communication (VLC) orthogonal frequency division multiplexing (OFDM) layered asymmetrically clipped optical OFDM (LACO-OFDM) pre-distortion inter layer interference. |
| title | Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System |
| title_full | Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System |
| title_fullStr | Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System |
| title_full_unstemmed | Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System |
| title_short | Adaptive Modulation Scheme Based on Partially Pre-Distorted LACO-OFDM for VLC System |
| title_sort | adaptive modulation scheme based on partially pre distorted laco ofdm for vlc system |
| topic | Visible light communication (VLC) orthogonal frequency division multiplexing (OFDM) layered asymmetrically clipped optical OFDM (LACO-OFDM) pre-distortion inter layer interference. |
| url | https://ieeexplore.ieee.org/document/8827661/ |
| work_keys_str_mv | AT yaqisun adaptivemodulationschemebasedonpartiallypredistortedlacoofdmforvlcsystem AT fangyang adaptivemodulationschemebasedonpartiallypredistortedlacoofdmforvlcsystem |