Simplified sparse code multiple access receiver by using truncated messages

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...

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Vydané v:	IET communications Ročník 12; číslo 16; s. 1937 - 1945
Hlavní autori:	Lai, Ke, Wen, Lei, Lei, Jing, Zhong, Jie, Chen, GaoJie, Zhou, XiaoTian
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	The Institution of Engineering and Technology 09.10.2018
Predmet:	air interface channel coding channel‐adaptive EML algorithm computational complexity current message passing algorithm decoding extended max‐log algorithm Galois fields low computational complexity low‐complexity decoding algorithms message passing mobile radio multi‐access systems next generation mobile networks next generation networks q‐order Galois field Research Article SCMA constellation simplified sparse code multiple access receiver trellis codes trellis representation truncated length truncated messages SCMA constellation trellis representation message passing mobile radio next generation mobile networks extended max-log algorithm channel coding next generation networks truncated messages low-complexity decoding algorithms truncated length Galois fields decoding trellis codes low computational complexity q-order Galois field current message passing algorithm multi-access systems simplified sparse code multiple access receiver air interface channel-adaptive EML algorithm computational complexity
ISSN:	1751-8628, 1751-8636
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