Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks
Inspired by portfolio selection theory,an efficient primary user QoS guaranteed resource allocation algorithm from secondary user interference by using historical channel state information was proposed.This algorithm formulates the risk as optimization objective,and restricts the interference which...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-11-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0044-07/ |
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| _version_ | 1841539941043011584 |
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| author | Hui LIANG Xiao-hui ZHAO |
| author_facet | Hui LIANG Xiao-hui ZHAO |
| author_sort | Hui LIANG |
| collection | DOAJ |
| description | Inspired by portfolio selection theory,an efficient primary user QoS guaranteed resource allocation algorithm from secondary user interference by using historical channel state information was proposed.This algorithm formulates the risk as optimization objective,and restricts the interference which comes from secondary system to primary users below a mutual interference threshold.Then quadratic programming method is used to solve this optimization problem.Finally,performance comparison between the original algorithm without protection and the proposed algorithm was given.Simulation results illustrate that the proposed algorithm can minimize secondary system risk under an expected transmission rate and guarantee primary user’s QoS. |
| format | Article |
| id | doaj-art-78432d92d84143d192c5bb6dc685161a |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-78432d92d84143d192c5bb6dc685161a2025-01-14T06:30:38ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-11-0132445059658746Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networksHui LIANGXiao-hui ZHAOInspired by portfolio selection theory,an efficient primary user QoS guaranteed resource allocation algorithm from secondary user interference by using historical channel state information was proposed.This algorithm formulates the risk as optimization objective,and restricts the interference which comes from secondary system to primary users below a mutual interference threshold.Then quadratic programming method is used to solve this optimization problem.Finally,performance comparison between the original algorithm without protection and the proposed algorithm was given.Simulation results illustrate that the proposed algorithm can minimize secondary system risk under an expected transmission rate and guarantee primary user’s QoS.http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0044-07/cognitive radioresource allocationportfolio selectionmutual interferenceprimary user QoS |
| spellingShingle | Hui LIANG Xiao-hui ZHAO Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks Tongxin xuebao cognitive radio resource allocation portfolio selection mutual interference primary user QoS |
| title | Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks |
| title_full | Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks |
| title_fullStr | Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks |
| title_full_unstemmed | Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks |
| title_short | Portfolio selection and primary user QoS guarantee based resource allocation in cognitive radio networks |
| title_sort | portfolio selection and primary user qos guarantee based resource allocation in cognitive radio networks |
| topic | cognitive radio resource allocation portfolio selection mutual interference primary user QoS |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0044-07/ |
| work_keys_str_mv | AT huiliang portfolioselectionandprimaryuserqosguaranteebasedresourceallocationincognitiveradionetworks AT xiaohuizhao portfolioselectionandprimaryuserqosguaranteebasedresourceallocationincognitiveradionetworks |