Channel estimation method for multi-node amplify-and-forward co-operative communication over frequency-selective fading channels
A training sequence aided least squares channel estimation method was proposed for orthogonal frequency di-vision multiplexing （OFDM） based multi-node amplify-and-forward （AF） cooperative communication over fre-quency-selective fading channels. The mean square error bound on the proposed method is d...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2008-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74656767/ |
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| Summary: | A training sequence aided least squares channel estimation method was proposed for orthogonal frequency di-vision multiplexing （OFDM） based multi-node amplify-and-forward （AF） cooperative communication over fre-quency-selective fading channels. The mean square error bound on the proposed method is derived and the optimal train- ing sequence scheme with respect to this bound is also given. In addition, Chu sequence with the optimal power alloca- tion is chosen as training sequence to achieve the minimum mean square error estimation performance. Simulation results confirm the performance of the proposed channel estimation method in multi-node AF cooperative communication sce- narios and the superiority of the derived optimal training sequence scheme. |
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| ISSN: | 1000-436X |