Low Complexity Message Passing Algorithm for SCMA System

Sparse code multiple access (SCMA) is a novel non-orthogonal air-interface technology in which several users share a same frequency resource simultaneously. The SCMA decoder is based on a message passing algorithm (MPA) for the sparsity of codeword. In the original MPA, all the users update a messag...

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Veröffentlicht in:	IEEE communications letters 2016-12, Vol.20 (12), p.2466-2469
Hauptverfasser:	Yang, Lin, Liu, Yunyun, Siu, Yunming
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Complexity Computational complexity Convergence Decoding Encoding iterative multiuser detection Message passing MPA Numerical models Performance degradation Reliability SCMA
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