Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation
An algorithm to optimize the power allocation by maximizing the system throughput in cognitive radio energy harvesting networks was proposed.The algorithm formulated the throughput optimization model subject to the causality constraints of the harvested energy within the two secondary users and the...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2017-09-01
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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.2017191/ |
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| _version_ | 1841539502904967168 |
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| author | Zhen-wei XIE Qi ZHU |
| author_facet | Zhen-wei XIE Qi ZHU |
| author_sort | Zhen-wei XIE |
| collection | DOAJ |
| description | An algorithm to optimize the power allocation by maximizing the system throughput in cognitive radio energy harvesting networks was proposed.The algorithm formulated the throughput optimization model subject to the causality constraints of the harvested energy within the two secondary users and the interference constraint of the primary user.In addition,by applying the variable-substitution method and problem equivalence transformation,the joint optimization problem of power and cooperative energy was decoupled into two problems:a power allocation problem and a cooperative energy one.The former problem could be solved by iterating the two decoupled problems.As shown in the simulation results,the energy cooperation can significantly improve the system throughput when the harvested energy difference between two nodes is rather large. |
| format | Article |
| id | doaj-art-4f37a06282a64198b3c18ebf63598533 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-09-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-4f37a06282a64198b3c18ebf635985332025-01-14T07:13:03ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-09-013817618459712430Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperationZhen-wei XIEQi ZHUAn algorithm to optimize the power allocation by maximizing the system throughput in cognitive radio energy harvesting networks was proposed.The algorithm formulated the throughput optimization model subject to the causality constraints of the harvested energy within the two secondary users and the interference constraint of the primary user.In addition,by applying the variable-substitution method and problem equivalence transformation,the joint optimization problem of power and cooperative energy was decoupled into two problems:a power allocation problem and a cooperative energy one.The former problem could be solved by iterating the two decoupled problems.As shown in the simulation results,the energy cooperation can significantly improve the system throughput when the harvested energy difference between two nodes is rather large.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017191/cognitive radioenergy harvestingenergy cooperationthroughput maximization |
| spellingShingle | Zhen-wei XIE Qi ZHU Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation Tongxin xuebao cognitive radio energy harvesting energy cooperation throughput maximization |
| title | Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation |
| title_full | Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation |
| title_fullStr | Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation |
| title_full_unstemmed | Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation |
| title_short | Power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation |
| title_sort | power allocation algorithm for cognitive radio energy harvesting networks based on energy cooperation |
| topic | cognitive radio energy harvesting energy cooperation throughput maximization |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017191/ |
| work_keys_str_mv | AT zhenweixie powerallocationalgorithmforcognitiveradioenergyharvestingnetworksbasedonenergycooperation AT qizhu powerallocationalgorithmforcognitiveradioenergyharvestingnetworksbasedonenergycooperation |