Design of SCMA codebook based on chaotic signal and system performance analysis
Sparse code multiple access (SCMA) technology is one of the multiple access technology schemes for the new generation of 5G.In order to solve the transmission requirement of massive users,the logistic chaos sequence was proposed instead of the random sequence in the original system to select the cod...
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| Format: | Article |
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Editorial Department of Journal on Communications
2019-02-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019026/ |
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| author | Geng ZHAO Yanyan MA Yingjie MA |
| author_facet | Geng ZHAO Yanyan MA Yingjie MA |
| author_sort | Geng ZHAO |
| collection | DOAJ |
| description | Sparse code multiple access (SCMA) technology is one of the multiple access technology schemes for the new generation of 5G.In order to solve the transmission requirement of massive users,the logistic chaos sequence was proposed instead of the random sequence in the original system to select the codeword.The constellation method based on trellis coded modulation (TCM) subset segmentation with the mapping matrix was used to generate codebook in the encoder,and decoded through message passing algorithm (MPA) detection method.The simulation results show that the bit error rate (BER) is low when the system uses the pseudo-random sequence of chaos to select the codeword,and the system also performs well under the condition of high overload rate. |
| format | Article |
| id | doaj-art-d2f2ec93ab12484496370aeb63beb1d7 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2019-02-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-d2f2ec93ab12484496370aeb63beb1d72025-01-14T07:16:22ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2019-02-014013714459725277Design of SCMA codebook based on chaotic signal and system performance analysisGeng ZHAOYanyan MAYingjie MASparse code multiple access (SCMA) technology is one of the multiple access technology schemes for the new generation of 5G.In order to solve the transmission requirement of massive users,the logistic chaos sequence was proposed instead of the random sequence in the original system to select the codeword.The constellation method based on trellis coded modulation (TCM) subset segmentation with the mapping matrix was used to generate codebook in the encoder,and decoded through message passing algorithm (MPA) detection method.The simulation results show that the bit error rate (BER) is low when the system uses the pseudo-random sequence of chaos to select the codeword,and the system also performs well under the condition of high overload rate.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019026/SCMAlogistic chaotic sequencecodebook designTCM subset segmentation |
| spellingShingle | Geng ZHAO Yanyan MA Yingjie MA Design of SCMA codebook based on chaotic signal and system performance analysis Tongxin xuebao SCMA logistic chaotic sequence codebook design TCM subset segmentation |
| title | Design of SCMA codebook based on chaotic signal and system performance analysis |
| title_full | Design of SCMA codebook based on chaotic signal and system performance analysis |
| title_fullStr | Design of SCMA codebook based on chaotic signal and system performance analysis |
| title_full_unstemmed | Design of SCMA codebook based on chaotic signal and system performance analysis |
| title_short | Design of SCMA codebook based on chaotic signal and system performance analysis |
| title_sort | design of scma codebook based on chaotic signal and system performance analysis |
| topic | SCMA logistic chaotic sequence codebook design TCM subset segmentation |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019026/ |
| work_keys_str_mv | AT gengzhao designofscmacodebookbasedonchaoticsignalandsystemperformanceanalysis AT yanyanma designofscmacodebookbasedonchaoticsignalandsystemperformanceanalysis AT yingjiema designofscmacodebookbasedonchaoticsignalandsystemperformanceanalysis |