Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System
In the underwater visible light communication (VLC) system, the single-photon avalanche diode (SPAD) can expand communication distance. However, the output signals from practical SPADs under dead time limit are not Poisson distributed. In this paper, the generalized likelihood block detection (GLBD)...
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8610103/ |
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| author | Ya-Wei Ji Guo-Feng Wu Chao Wang |
| author_facet | Ya-Wei Ji Guo-Feng Wu Chao Wang |
| author_sort | Ya-Wei Ji |
| collection | DOAJ |
| description | In the underwater visible light communication (VLC) system, the single-photon avalanche diode (SPAD) can expand communication distance. However, the output signals from practical SPADs under dead time limit are not Poisson distributed. In this paper, the generalized likelihood block detection (GLBD) receiver is developed for practical SPAD-based underwater VLC system with on–off keying modulation. The proposed receiver can detect the data sequence without any prior knowledge of the channel and the background radiation. Correspondingly, a fast search algorithm for GLBD receiver is also proposed. In addition, a block coding scheme is utilized to solve the error floor problem. Simulation results show that the bit error rate (BER) performance of the proposed receiver is closer to the BER low bound compared to the existing receiver. Moreover, the fast search algorithm reduces the computational complexity without any performance loss. |
| format | Article |
| id | doaj-art-de345209c41b4e16bbbaafc50ddd11d1 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-de345209c41b4e16bbbaafc50ddd11d12025-08-20T02:44:40ZengIEEEIEEE Photonics Journal1943-06552020-01-0112111010.1109/JPHOT.2018.28906838610103Generalized Likelihood Block Detection for SPAD-Based Underwater VLC SystemYa-Wei Ji0https://orcid.org/0000-0001-7704-910XGuo-Feng Wu1Chao Wang2https://orcid.org/0000-0002-8197-9622National Digital Switching System Engineering and Technology Research Center, Henan, ChinaNational Digital Switching System Engineering and Technology Research Center, Henan, ChinaNational Digital Switching System Engineering and Technology Research Center, Henan, ChinaIn the underwater visible light communication (VLC) system, the single-photon avalanche diode (SPAD) can expand communication distance. However, the output signals from practical SPADs under dead time limit are not Poisson distributed. In this paper, the generalized likelihood block detection (GLBD) receiver is developed for practical SPAD-based underwater VLC system with on–off keying modulation. The proposed receiver can detect the data sequence without any prior knowledge of the channel and the background radiation. Correspondingly, a fast search algorithm for GLBD receiver is also proposed. In addition, a block coding scheme is utilized to solve the error floor problem. Simulation results show that the bit error rate (BER) performance of the proposed receiver is closer to the BER low bound compared to the existing receiver. Moreover, the fast search algorithm reduces the computational complexity without any performance loss.https://ieeexplore.ieee.org/document/8610103/Underwater visible light communicationphoton countingblind detection. |
| spellingShingle | Ya-Wei Ji Guo-Feng Wu Chao Wang Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System IEEE Photonics Journal Underwater visible light communication photon counting blind detection. |
| title | Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System |
| title_full | Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System |
| title_fullStr | Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System |
| title_full_unstemmed | Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System |
| title_short | Generalized Likelihood Block Detection for SPAD-Based Underwater VLC System |
| title_sort | generalized likelihood block detection for spad based underwater vlc system |
| topic | Underwater visible light communication photon counting blind detection. |
| url | https://ieeexplore.ieee.org/document/8610103/ |
| work_keys_str_mv | AT yaweiji generalizedlikelihoodblockdetectionforspadbasedunderwatervlcsystem AT guofengwu generalizedlikelihoodblockdetectionforspadbasedunderwatervlcsystem AT chaowang generalizedlikelihoodblockdetectionforspadbasedunderwatervlcsystem |