| 带有时偏的MC-CDMA上行链路的盲信道估计 |
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| 引用本文： | 吴海锋,戴宪华,梁建清.带有时偏的MC-CDMA上行链路的盲信道估计[J].通信学报,2007,28(1):8-16. |
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| 作者姓名： | 吴海锋 戴宪华 梁建清 |
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| 作者单位： | 中山大学,电子与通信工程系,广东,广州,510275 |
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| 摘 要： | 为了能在带有时偏的MC-CDMA上行链路中估计信道，提出了一种新的信道估计方法。该方法能消除时偏对信道估计产生的影响，从而无需系统同步就能准确估计出信道。另外，由于扩频序列的信息对接收端是已知的，因此该信道估计方法可以利用扩频码的信息来完成盲估计。最后的仿真结果显示，该信道估计方法有良好的性能。
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| 关 键 词： | 同步 时间偏差 盲信道估计 |
| 文章编号： | 1000-436X（2007）01-0008-09 |
| 修稿时间： | 2005-11-162006-12-20 |
Blind channel estimation for the uplink of MC-CDMA systems with timing offset |
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| WU Hai-feng,DAI Xian-hua,LIANG Jian-qing.Blind channel estimation for the uplink of MC-CDMA systems with timing offset[J].Journal on Communications,2007,28(1):8-16. |
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| Authors: | WU Hai-feng DAI Xian-hua LIANG Jian-qing |
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| Abstract: | A new blind channel estimation scheme was proposed for the uplink of multicarrier code-division multiple ac-cess(MC-CDMA) systems with timing offset(TO).The scheme can cancel TO effects on the channel estimation,and thus work well without synchronizing the system.In addition,the estimation can exploit the knowledge of the spreading sequences to accomplish a blind estimation since the spreading sequences are known for the receiver.In computer simu-lations,the new channel estimation provides a satisfactory performance. |
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| Keywords: | MC-CDMA |
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