Simplified sparse code multiple access receiver by using truncated messages.

Ke Lai,Lei Wen,Jing Lei,Jie Zhong,Gaojie Chen, XiaoTian Zhou

IET Communications（2018）

引用 11|浏览9

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摘要

Sparse code multiple access (SCMA) is a promising candidate air interface of the next generation mobile networks. However, the decoding complexity of current message passing algorithm for SCMA is very high. In this study, the authors map SCMA constellation to q-order Galois field ($GF(q)$GF(q)) and introduce a trellis representation to SCMA. Based on the trellis representation, they propose low-co...

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关键词

channel coding,computational complexity,decoding,Galois fields,message passing,mobile radio,multi-access systems,next generation networks,trellis codes

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