Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems
In this paper, we propose and experimentally demonstrate an orthogonal subblock division multiple access (OSDMA) scheme for orthogonal frequency division multiplexing with index modulation (OFDM-IM)-based multi-user visible light communication (MU-VLC) systems, where both single-mode index modulatio...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/6/373 |
| _version_ | 1797483199757025280 |
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| author | Yungui Nie Jiamin Chen Wanli Wen Min Liu Xiong Deng Chen Chen |
| author_facet | Yungui Nie Jiamin Chen Wanli Wen Min Liu Xiong Deng Chen Chen |
| author_sort | Yungui Nie |
| collection | DOAJ |
| description | In this paper, we propose and experimentally demonstrate an orthogonal subblock division multiple access (OSDMA) scheme for orthogonal frequency division multiplexing with index modulation (OFDM-IM)-based multi-user visible light communication (MU-VLC) systems, where both single-mode index modulation (SM-IM) and dual-mode index modulation (DM-IM) are considered. In order to overcome the low-pass frequency response and the light-emitting diodes (LED) nonlinearity issues of practical MU-VLC systems, OSDMA is employed together with discrete Fourier transform spreading (DFT-S) and interleaving. The feasibility and superiority of the proposed scheme have been successfully verified via both simulations and hardware experiments. More specifically, we evaluate and compare the peak-to-average power ratio (PAPR) performance and the bit error rate (BER) performance of OFDM-SM-IM, DFT-S-OFDM-SM-IM, OFDM-DM-IM and DFT-S-OFDM-DM-IM without and with interleaving. Experimental results show that remarkable distance extensions can be achieved by employing DFT spreading and interleaving for both SM-IM and DM-IM in a two-user OSDMA-VLC system. |
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| format | Article |
| id | doaj.art-6362d6b5ba5a4ea8a53d8c3596ebbdda |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T22:44:30Z |
| publishDate | 2022-05-01 |
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| series | Photonics |
| spelling | doaj.art-6362d6b5ba5a4ea8a53d8c3596ebbdda2023-11-23T18:32:33ZengMDPI AGPhotonics2304-67322022-05-019637310.3390/photonics9060373Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC SystemsYungui Nie0Jiamin Chen1Wanli Wen2Min Liu3Xiong Deng4Chen Chen5School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaCenter for Information Photonics and Communications, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, ChinaIn this paper, we propose and experimentally demonstrate an orthogonal subblock division multiple access (OSDMA) scheme for orthogonal frequency division multiplexing with index modulation (OFDM-IM)-based multi-user visible light communication (MU-VLC) systems, where both single-mode index modulation (SM-IM) and dual-mode index modulation (DM-IM) are considered. In order to overcome the low-pass frequency response and the light-emitting diodes (LED) nonlinearity issues of practical MU-VLC systems, OSDMA is employed together with discrete Fourier transform spreading (DFT-S) and interleaving. The feasibility and superiority of the proposed scheme have been successfully verified via both simulations and hardware experiments. More specifically, we evaluate and compare the peak-to-average power ratio (PAPR) performance and the bit error rate (BER) performance of OFDM-SM-IM, DFT-S-OFDM-SM-IM, OFDM-DM-IM and DFT-S-OFDM-DM-IM without and with interleaving. Experimental results show that remarkable distance extensions can be achieved by employing DFT spreading and interleaving for both SM-IM and DM-IM in a two-user OSDMA-VLC system.https://www.mdpi.com/2304-6732/9/6/373visible light communication (VLC)orthogonal frequency division multiplexing (OFDM)index modulation (IM)orthogonal subblock division multiple access (OSDMA) |
| spellingShingle | Yungui Nie Jiamin Chen Wanli Wen Min Liu Xiong Deng Chen Chen Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems Photonics visible light communication (VLC) orthogonal frequency division multiplexing (OFDM) index modulation (IM) orthogonal subblock division multiple access (OSDMA) |
| title | Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems |
| title_full | Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems |
| title_fullStr | Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems |
| title_full_unstemmed | Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems |
| title_short | Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems |
| title_sort | orthogonal subblock division multiple access for ofdm im based multi user vlc systems |
| topic | visible light communication (VLC) orthogonal frequency division multiplexing (OFDM) index modulation (IM) orthogonal subblock division multiple access (OSDMA) |
| url | https://www.mdpi.com/2304-6732/9/6/373 |
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