A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness
Existing algorithms couldn't balance system capacity and high fairness well,so a multi-user rate adaptive allocation algorithm was proposed to maximize the capacity of OFDMA system under proportional fairness.Improved maximize the minimum（max-min）user rate model was proposed,the current user wa...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2014-06-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/thesisDetails#10.3969/j.issn.1000-0801.2014.06.012 |
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| author | Yaohui Wu Youming Li Pengfei Shao |
| author_facet | Yaohui Wu Youming Li Pengfei Shao |
| author_sort | Yaohui Wu |
| collection | DOAJ |
| description | Existing algorithms couldn't balance system capacity and high fairness well,so a multi-user rate adaptive allocation algorithm was proposed to maximize the capacity of OFDMA system under proportional fairness.Improved maximize the minimum（max-min）user rate model was proposed,the current user was allocated the highest efficiency subcarrier according to the channel efficiency control parameter.If some allocated subcarrier's channel gain was lower than the threshold value,which would be reallocated to another user whose channel gain was highest.Power allocation model was converted into expression of water-filling line; every user's power allocation was resolved according to the resolved water-filling line.Simulation results and analysis show that the proposed scheme can achieve higher capacity and perfect fairness in a variety of SNR cases,while requiring slightly less computation. |
| format | Article |
| id | doaj-art-2cca55988044449191f1222bcc9753ff |
| institution | OA Journals |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2014-06-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-2cca55988044449191f1222bcc9753ff2025-08-20T02:08:53ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012014-06-0130798559621206A Novel Resource Allocation Algorithm for OFDMA System with Proportional FairnessYaohui WuYouming LiPengfei ShaoExisting algorithms couldn't balance system capacity and high fairness well,so a multi-user rate adaptive allocation algorithm was proposed to maximize the capacity of OFDMA system under proportional fairness.Improved maximize the minimum（max-min）user rate model was proposed,the current user was allocated the highest efficiency subcarrier according to the channel efficiency control parameter.If some allocated subcarrier's channel gain was lower than the threshold value,which would be reallocated to another user whose channel gain was highest.Power allocation model was converted into expression of water-filling line; every user's power allocation was resolved according to the resolved water-filling line.Simulation results and analysis show that the proposed scheme can achieve higher capacity and perfect fairness in a variety of SNR cases,while requiring slightly less computation.http://www.telecomsci.com/thesisDetails#10.3969/j.issn.1000-0801.2014.06.012OFDMA;resource allocation;proportional fairness;capacity |
| spellingShingle | Yaohui Wu Youming Li Pengfei Shao A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness Dianxin kexue OFDMA;resource allocation;proportional fairness;capacity |
| title | A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness |
| title_full | A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness |
| title_fullStr | A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness |
| title_full_unstemmed | A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness |
| title_short | A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness |
| title_sort | novel resource allocation algorithm for ofdma system with proportional fairness |
| topic | OFDMA;resource allocation;proportional fairness;capacity |
| url | http://www.telecomsci.com/thesisDetails#10.3969/j.issn.1000-0801.2014.06.012 |
| work_keys_str_mv | AT yaohuiwu anovelresourceallocationalgorithmforofdmasystemwithproportionalfairness AT youmingli anovelresourceallocationalgorithmforofdmasystemwithproportionalfairness AT pengfeishao anovelresourceallocationalgorithmforofdmasystemwithproportionalfairness AT yaohuiwu novelresourceallocationalgorithmforofdmasystemwithproportionalfairness AT youmingli novelresourceallocationalgorithmforofdmasystemwithproportionalfairness AT pengfeishao novelresourceallocationalgorithmforofdmasystemwithproportionalfairness |