Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness
A resource allocation algorithm for the downlink of multi-user OFDM system with optimized fairness was studied. Firstly, assign the subcarriers to users with the constraint on proportional fairness and the water-filling algorithm was used in this process for the power allocation of each subcarrier....
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2015-12-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2015296/ |
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| _version_ | 1841529806875787264 |
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| author | Limei Tang Haiyan Cao Jun Li Shiyi Xie |
| author_facet | Limei Tang Haiyan Cao Jun Li Shiyi Xie |
| author_sort | Limei Tang |
| collection | DOAJ |
| description | A resource allocation algorithm for the downlink of multi-user OFDM system with optimized fairness was studied. Firstly, assign the subcarriers to users with the constraint on proportional fairness and the water-filling algorithm was used in this process for the power allocation of each subcarrier. Then update the bits and power for each subcarrier of all the users using greedy power allocation to achieve higher data rates and power efficiency. Simulation results show that the proposed algorithm improves the capacity of the system while ensuring the performance of fairness better compared with the algorithm in[10]. To[12], the fairness is considerable improved with a little loss of capacity. |
| format | Article |
| id | doaj-art-8e95899d8e93412b94123d0454a54dff |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2015-12-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-8e95899d8e93412b94123d0454a54dff2025-01-15T03:15:47ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012015-12-0131586359611369Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized FairnessLimei TangHaiyan CaoJun LiShiyi XieA resource allocation algorithm for the downlink of multi-user OFDM system with optimized fairness was studied. Firstly, assign the subcarriers to users with the constraint on proportional fairness and the water-filling algorithm was used in this process for the power allocation of each subcarrier. Then update the bits and power for each subcarrier of all the users using greedy power allocation to achieve higher data rates and power efficiency. Simulation results show that the proposed algorithm improves the capacity of the system while ensuring the performance of fairness better compared with the algorithm in[10]. To[12], the fairness is considerable improved with a little loss of capacity.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2015296/OFDMfairnessdata ratesubcarrierpower |
| spellingShingle | Limei Tang Haiyan Cao Jun Li Shiyi Xie Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness Dianxin kexue OFDM fairness data rate subcarrier power |
| title | Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness |
| title_full | Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness |
| title_fullStr | Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness |
| title_full_unstemmed | Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness |
| title_short | Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness |
| title_sort | resource allocation algorithm for the downlink of multi user ofdm system with optimized fairness |
| topic | OFDM fairness data rate subcarrier power |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2015296/ |
| work_keys_str_mv | AT limeitang resourceallocationalgorithmforthedownlinkofmultiuserofdmsystemwithoptimizedfairness AT haiyancao resourceallocationalgorithmforthedownlinkofmultiuserofdmsystemwithoptimizedfairness AT junli resourceallocationalgorithmforthedownlinkofmultiuserofdmsystemwithoptimizedfairness AT shiyixie resourceallocationalgorithmforthedownlinkofmultiuserofdmsystemwithoptimizedfairness |