Research on low complexity decoding for SCMA based on serial strategies of variable node
Sparse code multiple access technology,as a competitive non orthogonal multiple access scheme for the fifth generation wireless communication network,has a broad application prospect.However,current SCMA uplink use the flooding scheme of message passing algorithm for decoding,both the detection comp...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2017-09-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2017226/ |
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| author | Mingming JI Jianhong ZHENG |
| author_facet | Mingming JI Jianhong ZHENG |
| author_sort | Mingming JI |
| collection | DOAJ |
| description | Sparse code multiple access technology,as a competitive non orthogonal multiple access scheme for the fifth generation wireless communication network,has a broad application prospect.However,current SCMA uplink use the flooding scheme of message passing algorithm for decoding,both the detection complexity and convergence properties are not ideal.A serial message passing algorithm which changed the information updating strategy was proposed,which performed message processing and deliveried according to the order of the variable nodes.Each of variable node simultaneously performed the reception of the verification message and the transmission of the variable message.The theoretical and simulation results show that the proposed algorithm not only maintains good performance,but also has low decoding complexity. |
| format | Article |
| id | doaj-art-024b5504e7f948bfbcb5f2a230bdef26 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2017-09-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-024b5504e7f948bfbcb5f2a230bdef262025-01-15T03:06:09ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012017-09-0133505759600077Research on low complexity decoding for SCMA based on serial strategies of variable nodeMingming JIJianhong ZHENGSparse code multiple access technology,as a competitive non orthogonal multiple access scheme for the fifth generation wireless communication network,has a broad application prospect.However,current SCMA uplink use the flooding scheme of message passing algorithm for decoding,both the detection complexity and convergence properties are not ideal.A serial message passing algorithm which changed the information updating strategy was proposed,which performed message processing and deliveried according to the order of the variable nodes.Each of variable node simultaneously performed the reception of the verification message and the transmission of the variable message.The theoretical and simulation results show that the proposed algorithm not only maintains good performance,but also has low decoding complexity.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2017226/sparse code multiple accessmultiuser detectionvariable nodeserial message passing |
| spellingShingle | Mingming JI Jianhong ZHENG Research on low complexity decoding for SCMA based on serial strategies of variable node Dianxin kexue sparse code multiple access multiuser detection variable node serial message passing |
| title | Research on low complexity decoding for SCMA based on serial strategies of variable node |
| title_full | Research on low complexity decoding for SCMA based on serial strategies of variable node |
| title_fullStr | Research on low complexity decoding for SCMA based on serial strategies of variable node |
| title_full_unstemmed | Research on low complexity decoding for SCMA based on serial strategies of variable node |
| title_short | Research on low complexity decoding for SCMA based on serial strategies of variable node |
| title_sort | research on low complexity decoding for scma based on serial strategies of variable node |
| topic | sparse code multiple access multiuser detection variable node serial message passing |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2017226/ |
| work_keys_str_mv | AT mingmingji researchonlowcomplexitydecodingforscmabasedonserialstrategiesofvariablenode AT jianhongzheng researchonlowcomplexitydecodingforscmabasedonserialstrategiesofvariablenode |