Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems
The resource allocation problem in cooperative OFDMA systems with mobile stations (MS) on multi-services was investigated. In order to maximize the sum utility of all MS under per-relay power constraint(PPC), an asymptotic optimal resource allocation algorithm based on multi-values discrete particle...
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| Format: | Article |
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Editorial Department of Journal on Communications
2014-04-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.04.003/ |
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| author | Wei LI Chun-lin XIONG De-gang WANG Xiao-ying ZHANG Ji-bo WEI |
| author_facet | Wei LI Chun-lin XIONG De-gang WANG Xiao-ying ZHANG Ji-bo WEI |
| author_sort | Wei LI |
| collection | DOAJ |
| description | The resource allocation problem in cooperative OFDMA systems with mobile stations (MS) on multi-services was investigated. In order to maximize the sum utility of all MS under per-relay power constraint(PPC), an asymptotic optimal resource allocation algorithm based on multi-values discrete particle swarm optimization (MDPSO) was pro-posed. Unlike the traditional discrete particle swarm optimization (DPSO) algorithm, the proposed one denotes the parti-cle position by discrete multi-value variable. Furthermore, new probability based operations for computing particle veloc-ity and updating particle positions were developed, and the mutation of particle positions was also introduced to over-come the premature convergence problem. The proposed MDPSO can also be applied widely to solve the combinatorial optimization problems (COP). Furthermore, iterative waterfilling was used to complete power allocation. Simulation re-sults show that the proposed method achieves higher sum utility of all MSs and higher degree of user fairness than the existing methods. |
| format | Article |
| id | doaj-art-cfceb5c57a924f01be610285a383bdca |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2014-04-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-cfceb5c57a924f01be610285a383bdca2025-01-14T06:43:06ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2014-04-0135172459680696Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systemsWei LIChun-lin XIONGDe-gang WANGXiao-ying ZHANGJi-bo WEIThe resource allocation problem in cooperative OFDMA systems with mobile stations (MS) on multi-services was investigated. In order to maximize the sum utility of all MS under per-relay power constraint(PPC), an asymptotic optimal resource allocation algorithm based on multi-values discrete particle swarm optimization (MDPSO) was pro-posed. Unlike the traditional discrete particle swarm optimization (DPSO) algorithm, the proposed one denotes the parti-cle position by discrete multi-value variable. Furthermore, new probability based operations for computing particle veloc-ity and updating particle positions were developed, and the mutation of particle positions was also introduced to over-come the premature convergence problem. The proposed MDPSO can also be applied widely to solve the combinatorial optimization problems (COP). Furthermore, iterative waterfilling was used to complete power allocation. Simulation re-sults show that the proposed method achieves higher sum utility of all MSs and higher degree of user fairness than the existing methods.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.04.003/OFDMAresource allocationdiscrete particle swarm optimizationutility function |
| spellingShingle | Wei LI Chun-lin XIONG De-gang WANG Xiao-ying ZHANG Ji-bo WEI Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems Tongxin xuebao OFDMA resource allocation discrete particle swarm optimization utility function |
| title | Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems |
| title_full | Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems |
| title_fullStr | Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems |
| title_full_unstemmed | Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems |
| title_short | Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems |
| title_sort | multi values discrete particle swarm optimization for cross layer resource allocation in cooperative ofdma systems |
| topic | OFDMA resource allocation discrete particle swarm optimization utility function |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.04.003/ |
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