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Codeword Position Index based Sparse Code Multiple Access System

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arxiv 1811.03777 v1 pith:ILVOXF7U submitted 2018-11-09 eess.SP

Ke Lai , Lei Wen , Jing Lei , Gaojie Chen , Pei Xiao , Amine Maaref This is my paper · ORCID
classification eess.SP
keywords scmacodewordaccesscodecpi-scmaindexmultipleposition
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In this letter, a novel variation of sparse code multiple access (SCMA), called codeword position index based SCMA (CPI-SCMA), is proposed. In this scheme, the information is transmitted not only by the codewords in M point SCMA codebook, but also by the indices of the codeword positions in a data block. As such, both the power and transmission efficiency (TE) can be improved, moreover, CPI-SCMA can achieve a better error rate performance compare to conventional SCMA (C-SCMA).

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