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Experimental demonstration of SCMA for visible light communications

Bangjiang Lin, Xuan Tang, Zhenlei Zhou, Chun Lin, Zabih Ghassemlooy

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    16 Citations (Scopus)
    141 Downloads (Pure)

    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.
    Original languageEnglish
    Pages (from-to)36-40
    JournalOptics Communications
    Volume419
    Early online date15 Mar 2018
    DOIs
    Publication statusPublished - 15 Jul 2018

    Keywords

    • Visible light communications (VLC)
    • Sparse code multiple access (SCMA)
    • Orthogonal frequency-division multiple access (OFDMA)

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