Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference
In multibeam satellite communication systems it is important to improve the utilization efficiency of the power resources, due to the scarcity of satellite power resources. The interbeam interference between the beams must be considered in the power allocation; therefore, it is important to optimize...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2014/469437 |
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| author | Heng Wang Aijun Liu Xiaofei Pan Jiong Li |
| author_facet | Heng Wang Aijun Liu Xiaofei Pan Jiong Li |
| author_sort | Heng Wang |
| collection | DOAJ |
| description | In multibeam satellite communication systems it is important to improve the utilization efficiency of the power resources, due to the scarcity of satellite power resources. The interbeam interference between the beams must be considered in the power allocation; therefore, it is important to optimize the power allocated to each beam in order to improve the total system performance. Initially the power allocation problem is formulated as a nonlinear optimization, considering a compromise between the maximization of total system capacity and the fairness of the power allocation amongst the beams. A dynamic power allocation algorithm based on duality theory is then proposed to obtain a locally optimal solution for the optimization problem. Compared with traditional power allocation algorithms, this proposed dynamic power allocation algorithm improves the fairness of the power allocation amongst the beams, and, in addition, the proposed algorithm also increases the total system capacity in certain scenarios. |
| format | Article |
| id | doaj-art-4f8516938bb74844b21f30c7321b89df |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-4f8516938bb74844b21f30c7321b89df2025-02-03T01:08:05ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/469437469437Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam InterferenceHeng Wang0Aijun Liu1Xiaofei Pan2Jiong Li3College of Communications Engineering, PLA University of Science and Technology, No. 2 , Yudao Street, Nanjing 210007, ChinaCollege of Communications Engineering, PLA University of Science and Technology, No. 2 , Yudao Street, Nanjing 210007, ChinaCollege of Communications Engineering, PLA University of Science and Technology, No. 2 , Yudao Street, Nanjing 210007, ChinaCollege of Communications Engineering, PLA University of Science and Technology, No. 2 , Yudao Street, Nanjing 210007, ChinaIn multibeam satellite communication systems it is important to improve the utilization efficiency of the power resources, due to the scarcity of satellite power resources. The interbeam interference between the beams must be considered in the power allocation; therefore, it is important to optimize the power allocated to each beam in order to improve the total system performance. Initially the power allocation problem is formulated as a nonlinear optimization, considering a compromise between the maximization of total system capacity and the fairness of the power allocation amongst the beams. A dynamic power allocation algorithm based on duality theory is then proposed to obtain a locally optimal solution for the optimization problem. Compared with traditional power allocation algorithms, this proposed dynamic power allocation algorithm improves the fairness of the power allocation amongst the beams, and, in addition, the proposed algorithm also increases the total system capacity in certain scenarios.http://dx.doi.org/10.1155/2014/469437 |
| spellingShingle | Heng Wang Aijun Liu Xiaofei Pan Jiong Li Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference Journal of Applied Mathematics |
| title | Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference |
| title_full | Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference |
| title_fullStr | Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference |
| title_full_unstemmed | Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference |
| title_short | Optimization of Power Allocation for a Multibeam Satellite Communication System with Interbeam Interference |
| title_sort | optimization of power allocation for a multibeam satellite communication system with interbeam interference |
| url | http://dx.doi.org/10.1155/2014/469437 |
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