Adaptive resource allocation in multiuser OFDM system based on fairness threshold
In traditional sub-carrier allocation process,user with the highest priority can choose best sub-carrier,which will result in low utilization of sub-carriers.Current improved algorithms can im-prove system capacity and reduce algorithm complexity by sacrificing certain fairness,but they may not achi...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74412722/ |
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| _version_ | 1841537839123136512 |
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| author | ZHANG Chun-fa ZHAO Xiao-hui |
| author_facet | ZHANG Chun-fa ZHAO Xiao-hui |
| author_sort | ZHANG Chun-fa |
| collection | DOAJ |
| description | In traditional sub-carrier allocation process,user with the highest priority can choose best sub-carrier,which will result in low utilization of sub-carriers.Current improved algorithms can im-prove system capacity and reduce algorithm complexity by sacrificing certain fairness,but they may not achieve fairness requirement among users.In order to solve this problem,a new adaptive resource allo-cation algorithm based on fairness threshold was proposed,in which the priority of the sub-carrier allo-cation was determined by fairness threshold to achieve a rough tradeoff between capacity and fairness.Then power allocation base on particle swarm optimization（PSO） was introduced to realize the required fairness.Experimental results show that the proposed adaptive resource allocation algorithm can satisfy the fairness requirement threshold and improve system capacity. |
| format | Article |
| id | doaj-art-ee81e0fa7734440bb9ecb0979fd7ef01 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-ee81e0fa7734440bb9ecb0979fd7ef012025-01-14T08:15:06ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-01-0132657174412722Adaptive resource allocation in multiuser OFDM system based on fairness thresholdZHANG Chun-faZHAO Xiao-huiIn traditional sub-carrier allocation process,user with the highest priority can choose best sub-carrier,which will result in low utilization of sub-carriers.Current improved algorithms can im-prove system capacity and reduce algorithm complexity by sacrificing certain fairness,but they may not achieve fairness requirement among users.In order to solve this problem,a new adaptive resource allo-cation algorithm based on fairness threshold was proposed,in which the priority of the sub-carrier allo-cation was determined by fairness threshold to achieve a rough tradeoff between capacity and fairness.Then power allocation base on particle swarm optimization（PSO） was introduced to realize the required fairness.Experimental results show that the proposed adaptive resource allocation algorithm can satisfy the fairness requirement threshold and improve system capacity.http://www.joconline.com.cn/zh/article/74412722/resource allocationfairness thresholdparticle swarm optimization（PSO）MU-OFDM |
| spellingShingle | ZHANG Chun-fa ZHAO Xiao-hui Adaptive resource allocation in multiuser OFDM system based on fairness threshold Tongxin xuebao resource allocation fairness threshold particle swarm optimization（PSO） MU-OFDM |
| title | Adaptive resource allocation in multiuser OFDM system based on fairness threshold |
| title_full | Adaptive resource allocation in multiuser OFDM system based on fairness threshold |
| title_fullStr | Adaptive resource allocation in multiuser OFDM system based on fairness threshold |
| title_full_unstemmed | Adaptive resource allocation in multiuser OFDM system based on fairness threshold |
| title_short | Adaptive resource allocation in multiuser OFDM system based on fairness threshold |
| title_sort | adaptive resource allocation in multiuser ofdm system based on fairness threshold |
| topic | resource allocation fairness threshold particle swarm optimization（PSO） MU-OFDM |
| url | http://www.joconline.com.cn/zh/article/74412722/ |
| work_keys_str_mv | AT zhangchunfa adaptiveresourceallocationinmultiuserofdmsystembasedonfairnessthreshold AT zhaoxiaohui adaptiveresourceallocationinmultiuserofdmsystembasedonfairnessthreshold |