Space-time coding scheme for the paired weak user in MIMO-NOMA systems
In view of the paired weak user’s poor outage performance in multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems,Alamouti code was adopted to encode for the weak user in order to improve its outage performance by means of diversity,and the closed-form expression of the...
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Editorial Department of Journal on Communications
2018-06-01
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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.2018109/ |
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| author | Mingyan GONG Zhen YANG |
| author_facet | Mingyan GONG Zhen YANG |
| author_sort | Mingyan GONG |
| collection | DOAJ |
| description | In view of the paired weak user’s poor outage performance in multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems,Alamouti code was adopted to encode for the weak user in order to improve its outage performance by means of diversity,and the closed-form expression of the strong user’s ergodic capacity as well as the boundary-form expressions of the weak user’s ergodic capacity and outage probability was derived in the proposed model.Moreover,a power allocation algorithm for optimizing the system’s throughput was proposed.Finally,the numerical results show the accuracy of the derived expressions,the efficacy of the proposed algorithm,and that the weak user’s outage performance in the proposed coding scheme is far superior to that in the current coding scheme only adopting vertical Bell lab layered space-time (V-BLAST) code. |
| format | Article |
| id | doaj-art-7140dfa2f0d9409ca2de356247d6b9d3 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2018-06-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-7140dfa2f0d9409ca2de356247d6b9d32025-01-14T07:15:01ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2018-06-013918118959719059Space-time coding scheme for the paired weak user in MIMO-NOMA systemsMingyan GONGZhen YANGIn view of the paired weak user’s poor outage performance in multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems,Alamouti code was adopted to encode for the weak user in order to improve its outage performance by means of diversity,and the closed-form expression of the strong user’s ergodic capacity as well as the boundary-form expressions of the weak user’s ergodic capacity and outage probability was derived in the proposed model.Moreover,a power allocation algorithm for optimizing the system’s throughput was proposed.Finally,the numerical results show the accuracy of the derived expressions,the efficacy of the proposed algorithm,and that the weak user’s outage performance in the proposed coding scheme is far superior to that in the current coding scheme only adopting vertical Bell lab layered space-time (V-BLAST) code.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2018109/NOMAMIMOAlamouti codepaired usersspace-time coding |
| spellingShingle | Mingyan GONG Zhen YANG Space-time coding scheme for the paired weak user in MIMO-NOMA systems Tongxin xuebao NOMA MIMO Alamouti code paired users space-time coding |
| title | Space-time coding scheme for the paired weak user in MIMO-NOMA systems |
| title_full | Space-time coding scheme for the paired weak user in MIMO-NOMA systems |
| title_fullStr | Space-time coding scheme for the paired weak user in MIMO-NOMA systems |
| title_full_unstemmed | Space-time coding scheme for the paired weak user in MIMO-NOMA systems |
| title_short | Space-time coding scheme for the paired weak user in MIMO-NOMA systems |
| title_sort | space time coding scheme for the paired weak user in mimo noma systems |
| topic | NOMA MIMO Alamouti code paired users space-time coding |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2018109/ |
| work_keys_str_mv | AT mingyangong spacetimecodingschemeforthepairedweakuserinmimonomasystems AT zhenyang spacetimecodingschemeforthepairedweakuserinmimonomasystems |