Experimental demonstration of SCMA for visible light communications

  • Bangjiang Lin*
  • , Xuan Tang
  • , Zhenlei Zhou
  • , Chun Lin
  • , Zabih Ghassemlooy
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

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
Number of pages5
JournalOptics Communications
Volume419
DOIs
StatePublished - 15 Jul 2018
Externally publishedYes

Keywords

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

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