Outage probability based power allocation and relay selection algorithm in cooperative communication
The relay selection and power optimization of multi-relay cooperative communication network under a joint sum power constraint was considered.A low complexity lay selection and power allocation algorithm was also pro-posed in amplify-and-forward cooperative network aiming at minimizing the probabili...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2013-10-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.10.010/ |
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| _version_ | 1841539838280466432 |
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| author | Li-yue SUN Xiao-hui ZHAO Ming GUO |
| author_facet | Li-yue SUN Xiao-hui ZHAO Ming GUO |
| author_sort | Li-yue SUN |
| collection | DOAJ |
| description | The relay selection and power optimization of multi-relay cooperative communication network under a joint sum power constraint was considered.A low complexity lay selection and power allocation algorithm was also pro-posed in amplify-and-forward cooperative network aiming at minimizing the probability of system outage.In this scheme,optimal power allocation among source and relay nodes was conducted.According to the SNR,an optimal relay node set was selected and a power allocation factor leading to lower system outage probability was obtained by steepest descent method.This algorithm did not need large quantity of l statistical information and equal power condition.It can obtain the best set of relay nodes under optimal power allocation only by solving the arranged matrix on the basis of Sig-nal to Noise Ratio.Simulation results show that the proposed relay select and power allocation algorithm,under the same conditions,compared in the outage probability in erent relay node set among several algorithms,achieves better performance in outage probability and power efficiency. |
| format | Article |
| id | doaj-art-c9d85d607e024edfab65a93e7e6c6697 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2013-10-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-c9d85d607e024edfab65a93e7e6c66972025-01-14T06:41:27ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2013-10-0134849159675685Outage probability based power allocation and relay selection algorithm in cooperative communicationLi-yue SUNXiao-hui ZHAOMing GUOThe relay selection and power optimization of multi-relay cooperative communication network under a joint sum power constraint was considered.A low complexity lay selection and power allocation algorithm was also pro-posed in amplify-and-forward cooperative network aiming at minimizing the probability of system outage.In this scheme,optimal power allocation among source and relay nodes was conducted.According to the SNR,an optimal relay node set was selected and a power allocation factor leading to lower system outage probability was obtained by steepest descent method.This algorithm did not need large quantity of l statistical information and equal power condition.It can obtain the best set of relay nodes under optimal power allocation only by solving the arranged matrix on the basis of Sig-nal to Noise Ratio.Simulation results show that the proposed relay select and power allocation algorithm,under the same conditions,compared in the outage probability in erent relay node set among several algorithms,achieves better performance in outage probability and power efficiency.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.10.010/cooperative communicationoptimal power allocationoutage probabilityrelay selection |
| spellingShingle | Li-yue SUN Xiao-hui ZHAO Ming GUO Outage probability based power allocation and relay selection algorithm in cooperative communication Tongxin xuebao cooperative communication optimal power allocation outage probability relay selection |
| title | Outage probability based power allocation and relay selection algorithm in cooperative communication |
| title_full | Outage probability based power allocation and relay selection algorithm in cooperative communication |
| title_fullStr | Outage probability based power allocation and relay selection algorithm in cooperative communication |
| title_full_unstemmed | Outage probability based power allocation and relay selection algorithm in cooperative communication |
| title_short | Outage probability based power allocation and relay selection algorithm in cooperative communication |
| title_sort | outage probability based power allocation and relay selection algorithm in cooperative communication |
| topic | cooperative communication optimal power allocation outage probability relay selection |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.10.010/ |
| work_keys_str_mv | AT liyuesun outageprobabilitybasedpowerallocationandrelayselectionalgorithmincooperativecommunication AT xiaohuizhao outageprobabilitybasedpowerallocationandrelayselectionalgorithmincooperativecommunication AT mingguo outageprobabilitybasedpowerallocationandrelayselectionalgorithmincooperativecommunication |