Lin, Bangjiang, Tang, Xuan, Zhou, Zhenlei, Lin, Chun and Ghassemlooy, Zabih (2018) Experimental demonstration of SCMA for visible light communications. Optics Communications, 419. pp. 36-40. ISSN 0030-4018
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Abstract
We propose an experimental demonstration of sparse code multiple access (SCMA) based visible light communications (VLC) system, in which the multi-dimensional codewords selected from a predefined codebook set are used to encode the transmitted data and a message passing algorithm (MPA) based multi-user receiver is used to detect the multiplexed codewords. Compared with the orthogonal frequency-division multiple access scheme, the SCMA scheme offers 150% overloading gain in the number of supported users at the cost of slightly decreased transmission performance.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Visible light communications (VLC), Sparse code multiple access (SCMA), Orthogonal frequency-division multiple access (OFDMA) |
| Subjects: | H600 Electronic and Electrical Engineering |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Becky Skoyles |
| Date Deposited: | 21 May 2018 11:49 |
| Last Modified: | 01 Aug 2021 12:37 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/34294 |
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