Experimental demonstration of SCMA for visible light communications

OPTICS COMMUNICATIONS

卷:419

Article

Lin, Bangjiang¹  Tang, Xuan¹  Zhou, Zhenlei¹  Lin, Chun¹  Ghassemlooy, Zabih² 

[1] Chinese Acad Sci, Quanzhou Inst Equipment Mfg, Haixi Inst, Beijing, Peoples R China

[2] Northumbria Univ, Fac Engn & Environm, Opt Commun Res Grp, Newcastle Upon Tyne, Tyne & Wear, England

关键词: Visible light communications (VLC);    Sparse code multiple access (SCMA);    Orthogonal frequency-division multiple access (OFDMA);   

DOI  :  10.1016/j.optcom.2018.03.015

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free