Analysis on the degree of freedom of interference alignment in cognitive radio
The feasibility conditions were still unclear in the case of finite number of signal dimension for most cognitive radio systems. The IA problem of CR system with multiple primary users and multiple secondary users was divided into two sub-problems: the IA problem of primary network and the IA proble...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2016-02-01
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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.2016045/ |
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| _version_ | 1841539580238495744 |
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| author | UNXian S HAOXiao-hui Z |
| author_facet | UNXian S HAOXiao-hui Z |
| author_sort | UNXian S |
| collection | DOAJ |
| description | The feasibility conditions were still unclear in the case of finite number of signal dimension for most cognitive radio systems. The IA problem of CR system with multiple primary users and multiple secondary users was divided into two sub-problems: the IA problem of primary network and the IA problem of secondary network, based on the cognitive mind. Then, the necessary IA conditions of secondary network were presented (good IA conditions of primary network have been proposed in previous research). Through the necessary conditions, it can obtain the upper bound of the average Dof of the secondary users. An improved minimum interference leakage algorithm was proposed, with which the conclu-sion was verified. |
| format | Article |
| id | doaj-art-640d47e23a984426857317a04828c1ba |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2016-02-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-640d47e23a984426857317a04828c1ba2025-01-14T06:54:55ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2016-02-013718019059699537Analysis on the degree of freedom of interference alignment in cognitive radioUNXian SHAOXiao-hui ZThe feasibility conditions were still unclear in the case of finite number of signal dimension for most cognitive radio systems. The IA problem of CR system with multiple primary users and multiple secondary users was divided into two sub-problems: the IA problem of primary network and the IA problem of secondary network, based on the cognitive mind. Then, the necessary IA conditions of secondary network were presented (good IA conditions of primary network have been proposed in previous research). Through the necessary conditions, it can obtain the upper bound of the average Dof of the secondary users. An improved minimum interference leakage algorithm was proposed, with which the conclu-sion was verified.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016045/CR systeminterference alignmentfeasibility conditionsdegree of freedom |
| spellingShingle | UNXian S HAOXiao-hui Z Analysis on the degree of freedom of interference alignment in cognitive radio Tongxin xuebao CR system interference alignment feasibility conditions degree of freedom |
| title | Analysis on the degree of freedom of interference alignment in cognitive radio |
| title_full | Analysis on the degree of freedom of interference alignment in cognitive radio |
| title_fullStr | Analysis on the degree of freedom of interference alignment in cognitive radio |
| title_full_unstemmed | Analysis on the degree of freedom of interference alignment in cognitive radio |
| title_short | Analysis on the degree of freedom of interference alignment in cognitive radio |
| title_sort | analysis on the degree of freedom of interference alignment in cognitive radio |
| topic | CR system interference alignment feasibility conditions degree of freedom |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016045/ |
| work_keys_str_mv | AT unxians analysisonthedegreeoffreedomofinterferencealignmentincognitiveradio AT haoxiaohuiz analysisonthedegreeoffreedomofinterferencealignmentincognitiveradio |