Adaptive MIMO-VLC system for high data rate communications
In this paper, we describe a high-speed indoor MIMO-VLC system that adapts the number of MIMO channels and data rate according to channel conditions at user locations. A transmitter coordination algorithm and a data rate adaptive modulation technique have been investigated. At each user location acr...
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| Format: | Conference item |
| Language: | English |
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Institute of Electrical and Electronics Engineers
2021
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| _version_ | 1797063071020089344 |
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| author | Dong, F Singh, R O'Brien, D |
| author_facet | Dong, F Singh, R O'Brien, D |
| author_sort | Dong, F |
| collection | OXFORD |
| description | In this paper, we describe a high-speed indoor MIMO-VLC system that adapts the number of MIMO channels and data rate according to channel conditions at user locations. A transmitter coordination algorithm and a data rate adaptive modulation technique have been investigated. At each user location across the room, the number of MIMO transmission channels is varied (by assigning transmitters into one or several groups and sending the same data stream in each group), and the data rate on each group is separately maximised. The system also employs the angle diversity receiver, zero-forcing MIMO equalisation and decision-feedback equalisation to mitigate spatial crosstalk and temporal interference. The performance of the proposed system is evaluated considering a practical indoor MIMO-VLC setup. For the configuration considered a peak overall data rate of 660 Mbps is achieved, and on average the overall data rate is 120 Mbps higher than a conventional spatial multiplexing approach. This shows the potential of this simple allocation scheme, compared with more complex precoding approaches. |
| first_indexed | 2024-03-06T20:54:37Z |
| format | Conference item |
| id | oxford-uuid:38c21657-eefa-44bc-b60c-4b4accbb353c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:54:37Z |
| publishDate | 2021 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | oxford-uuid:38c21657-eefa-44bc-b60c-4b4accbb353c2022-03-26T13:52:04ZAdaptive MIMO-VLC system for high data rate communicationsConference itemhttp://purl.org/coar/resource_type/c_5794uuid:38c21657-eefa-44bc-b60c-4b4accbb353cEnglishSymplectic Elements Institute of Electrical and Electronics Engineers2021Dong, FSingh, RO'Brien, DIn this paper, we describe a high-speed indoor MIMO-VLC system that adapts the number of MIMO channels and data rate according to channel conditions at user locations. A transmitter coordination algorithm and a data rate adaptive modulation technique have been investigated. At each user location across the room, the number of MIMO transmission channels is varied (by assigning transmitters into one or several groups and sending the same data stream in each group), and the data rate on each group is separately maximised. The system also employs the angle diversity receiver, zero-forcing MIMO equalisation and decision-feedback equalisation to mitigate spatial crosstalk and temporal interference. The performance of the proposed system is evaluated considering a practical indoor MIMO-VLC setup. For the configuration considered a peak overall data rate of 660 Mbps is achieved, and on average the overall data rate is 120 Mbps higher than a conventional spatial multiplexing approach. This shows the potential of this simple allocation scheme, compared with more complex precoding approaches. |
| spellingShingle | Dong, F Singh, R O'Brien, D Adaptive MIMO-VLC system for high data rate communications |
| title | Adaptive MIMO-VLC system for high data rate communications |
| title_full | Adaptive MIMO-VLC system for high data rate communications |
| title_fullStr | Adaptive MIMO-VLC system for high data rate communications |
| title_full_unstemmed | Adaptive MIMO-VLC system for high data rate communications |
| title_short | Adaptive MIMO-VLC system for high data rate communications |
| title_sort | adaptive mimo vlc system for high data rate communications |
| work_keys_str_mv | AT dongf adaptivemimovlcsystemforhighdataratecommunications AT singhr adaptivemimovlcsystemforhighdataratecommunications AT obriend adaptivemimovlcsystemforhighdataratecommunications |