Pilot based channel estimation in amplify-and-forward MIMO relay networks
A channel estimation method in two time slots for two-hop amplify-and-forward MIMO relay channels is pro-posed.An algorithm for computing the optimal pair of source pilot and relay amplify matrix is developed,which mini-mizes the mean square error of the source-to-relay channel estimation subject to...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2014-09-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.09.014/ |
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| _version_ | 1841539710840733696 |
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| author | Jian ZHOU Bao-yu ZHENG |
| author_facet | Jian ZHOU Bao-yu ZHENG |
| author_sort | Jian ZHOU |
| collection | DOAJ |
| description | A channel estimation method in two time slots for two-hop amplify-and-forward MIMO relay channels is pro-posed.An algorithm for computing the optimal pair of source pilot and relay amplify matrix is developed,which mini-mizes the mean square error of the source-to-relay channel estimation subject to both power constraints at the source and the relay.The signal matrices are decomposed into unitary components and diagonal components.Then the bisection method is used to obtain the optimal diagonal components of the source pilot and the relay amplified matrix.The simula-tion results show that the proposed method has no ambiguity in the channel estimates.The effects of the channel correla-tion and the number of antennas on the performance of channel estimation are also analyed. |
| format | Article |
| id | doaj-art-1dcd9cebfd104456ac09bec2e074d906 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2014-09-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-1dcd9cebfd104456ac09bec2e074d9062025-01-14T06:44:01ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2014-09-013514014659684274Pilot based channel estimation in amplify-and-forward MIMO relay networksJian ZHOUBao-yu ZHENGA channel estimation method in two time slots for two-hop amplify-and-forward MIMO relay channels is pro-posed.An algorithm for computing the optimal pair of source pilot and relay amplify matrix is developed,which mini-mizes the mean square error of the source-to-relay channel estimation subject to both power constraints at the source and the relay.The signal matrices are decomposed into unitary components and diagonal components.Then the bisection method is used to obtain the optimal diagonal components of the source pilot and the relay amplified matrix.The simula-tion results show that the proposed method has no ambiguity in the channel estimates.The effects of the channel correla-tion and the number of antennas on the performance of channel estimation are also analyed.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.09.014/channel estimationpilot designMIMO wireless relayAF cooperative |
| spellingShingle | Jian ZHOU Bao-yu ZHENG Pilot based channel estimation in amplify-and-forward MIMO relay networks Tongxin xuebao channel estimation pilot design MIMO wireless relay AF cooperative |
| title | Pilot based channel estimation in amplify-and-forward MIMO relay networks |
| title_full | Pilot based channel estimation in amplify-and-forward MIMO relay networks |
| title_fullStr | Pilot based channel estimation in amplify-and-forward MIMO relay networks |
| title_full_unstemmed | Pilot based channel estimation in amplify-and-forward MIMO relay networks |
| title_short | Pilot based channel estimation in amplify-and-forward MIMO relay networks |
| title_sort | pilot based channel estimation in amplify and forward mimo relay networks |
| topic | channel estimation pilot design MIMO wireless relay AF cooperative |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.09.014/ |
| work_keys_str_mv | AT jianzhou pilotbasedchannelestimationinamplifyandforwardmimorelaynetworks AT baoyuzheng pilotbasedchannelestimationinamplifyandforwardmimorelaynetworks |