Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications
Ubiquitous light-emitting diodes provide natural infrastructures for multiuser visible light communications (VLCs). However, the current available works for multiuser VLC systems mainly focus on broadcast scenarios and beamforming techniques. In this paper, we consider a multiuser multi-access VLC s...
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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/8686165/ |
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| author | Zhen-Yu Wang Hong-Yi Yu Da-Ming Wang |
| author_facet | Zhen-Yu Wang Hong-Yi Yu Da-Ming Wang |
| author_sort | Zhen-Yu Wang |
| collection | DOAJ |
| description | Ubiquitous light-emitting diodes provide natural infrastructures for multiuser visible light communications (VLCs). However, the current available works for multiuser VLC systems mainly focus on broadcast scenarios and beamforming techniques. In this paper, we consider a multiuser multi-access VLC system with finite-alphabet inputs. Intended for two-user multi-access VLC systems, we propose an energy-efficient time-collaborative constellation design to manage the nonnegative multiuser interference and we develop a joint maximum-likelihood demodulation and successive interference cancellation decoding algorithm for signal detection. Simulation results indicate that our proposed time-collaborative constellation design outperforms time-uncollaborative scheme in error performance perspective. |
| format | Article |
| id | doaj-art-c98b0219f6df4f5da108677ec39fb636 |
| institution | OA Journals |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-c98b0219f6df4f5da108677ec39fb6362025-08-20T02:38:11ZengIEEEIEEE Photonics Journal1943-06552019-01-0111311010.1109/JPHOT.2019.29100838686165Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light CommunicationsZhen-Yu Wang0https://orcid.org/0000-0002-8848-5932Hong-Yi Yu1https://orcid.org/0000-0003-0417-2179Da-Ming Wang2National Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaUbiquitous light-emitting diodes provide natural infrastructures for multiuser visible light communications (VLCs). However, the current available works for multiuser VLC systems mainly focus on broadcast scenarios and beamforming techniques. In this paper, we consider a multiuser multi-access VLC system with finite-alphabet inputs. Intended for two-user multi-access VLC systems, we propose an energy-efficient time-collaborative constellation design to manage the nonnegative multiuser interference and we develop a joint maximum-likelihood demodulation and successive interference cancellation decoding algorithm for signal detection. Simulation results indicate that our proposed time-collaborative constellation design outperforms time-uncollaborative scheme in error performance perspective.https://ieeexplore.ieee.org/document/8686165/Time-collaborative constellation designmaximum likelihood detectionmulti-accessfinite-alphabet inputs and visible light communications. |
| spellingShingle | Zhen-Yu Wang Hong-Yi Yu Da-Ming Wang Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications IEEE Photonics Journal Time-collaborative constellation design maximum likelihood detection multi-access finite-alphabet inputs and visible light communications. |
| title | Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications |
| title_full | Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications |
| title_fullStr | Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications |
| title_full_unstemmed | Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications |
| title_short | Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications |
| title_sort | time collaborative constellation design with finite alphabet inputs for two user multi access visible light communications |
| topic | Time-collaborative constellation design maximum likelihood detection multi-access finite-alphabet inputs and visible light communications. |
| url | https://ieeexplore.ieee.org/document/8686165/ |
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