Joint time and beam domain non-orthogonal multiple access
In order to improve the system’s ability to accommodate connected devices, a joint time and beam domain non-orthogonal multiple access (NOMA) scheme was proposed, which was suitable for millimeter wave massive multiple-input multiple-output (MIMO) systems.The correlation and difference of the users’...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2021-04-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021099/ |
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| _version_ | 1841539309018021888 |
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| author | Zhaoyang ZHANG Jiajia WU Jue WANG Chu ZHOU |
| author_facet | Zhaoyang ZHANG Jiajia WU Jue WANG Chu ZHOU |
| author_sort | Zhaoyang ZHANG |
| collection | DOAJ |
| description | In order to improve the system’s ability to accommodate connected devices, a joint time and beam domain non-orthogonal multiple access (NOMA) scheme was proposed, which was suitable for millimeter wave massive multiple-input multiple-output (MIMO) systems.The correlation and difference of the users’ channel were utilized to realize beam-domain NOMA, and sparse spreading technology was utilized to realize time-domain NOMA.With the optimization goal of improving the communication reliability of the system, optimization problem of the joint domain sparse access matrix design was constructed and solved.Finally, the access matrix was reconstructed based on the channel quality of the joint domain, and the interference cancellation operation was added to the message passing algorithm (MPA), which reduced the decoding complexity and improves the communication reliability. |
| format | Article |
| id | doaj-art-c433548909a44787a79af6c906326db2 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2021-04-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-c433548909a44787a79af6c906326db22025-01-14T07:21:55ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2021-04-0142768859741260Joint time and beam domain non-orthogonal multiple accessZhaoyang ZHANGJiajia WUJue WANGChu ZHOUIn order to improve the system’s ability to accommodate connected devices, a joint time and beam domain non-orthogonal multiple access (NOMA) scheme was proposed, which was suitable for millimeter wave massive multiple-input multiple-output (MIMO) systems.The correlation and difference of the users’ channel were utilized to realize beam-domain NOMA, and sparse spreading technology was utilized to realize time-domain NOMA.With the optimization goal of improving the communication reliability of the system, optimization problem of the joint domain sparse access matrix design was constructed and solved.Finally, the access matrix was reconstructed based on the channel quality of the joint domain, and the interference cancellation operation was added to the message passing algorithm (MPA), which reduced the decoding complexity and improves the communication reliability.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021099/millimeter waveNOMAbeam domainreliability |
| spellingShingle | Zhaoyang ZHANG Jiajia WU Jue WANG Chu ZHOU Joint time and beam domain non-orthogonal multiple access Tongxin xuebao millimeter wave NOMA beam domain reliability |
| title | Joint time and beam domain non-orthogonal multiple access |
| title_full | Joint time and beam domain non-orthogonal multiple access |
| title_fullStr | Joint time and beam domain non-orthogonal multiple access |
| title_full_unstemmed | Joint time and beam domain non-orthogonal multiple access |
| title_short | Joint time and beam domain non-orthogonal multiple access |
| title_sort | joint time and beam domain non orthogonal multiple access |
| topic | millimeter wave NOMA beam domain reliability |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021099/ |
| work_keys_str_mv | AT zhaoyangzhang jointtimeandbeamdomainnonorthogonalmultipleaccess AT jiajiawu jointtimeandbeamdomainnonorthogonalmultipleaccess AT juewang jointtimeandbeamdomainnonorthogonalmultipleaccess AT chuzhou jointtimeandbeamdomainnonorthogonalmultipleaccess |