| 双极化天线MIMO系统中预编码的研究 |
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| 引用本文： | 李哲.双极化天线MIMO系统中预编码的研究[J].中国电子商务,2009(11):85-86. |
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| 作者姓名： | 李哲 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,210003 |
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| 摘 要： | 预编码技术就是在发射端利用信道状态信息对发送符号进行预处理以达到提高系统容量和无线通信的数据传输速率的信号处理技术。在双极化天线MIMO系统中，由于其信道的特征矩阵非常复杂，利用其信道状态信息获取预编码向量的处理计算量较大。本文利用双极化多天线信道特征矩阵的特性，证明其对信道的特征矩阵的处理可以近似转化为对一个i．i．d．矩阵和一个类三角阵的处理，在保证系统的性能不受太大影响的前提下，降低了计算预编码向量的复杂度。
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| 关 键 词： | 双极化天线 MIMO系统 信道状态信息 预编码 |
Precoding in Dual-Polarized MIMO System |
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| Zhe LI.Precoding in Dual-Polarized MIMO System[J].Discovering Value,2009(11):85-86. |
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| Authors: | Zhe LI |
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| Institution: | Zhe LI (College of Telecommunications ＆ Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China) |
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| Abstract: | Precoding is a signal processing technology, which precedes sending symbols by channel state information in the transmitter in order to improve system capacity and data transfer rate. In the dual - polarized MIMO antenna system, due to its complex channel matrix,large amount of calculation is needed when getting preencoding vector by CSL In this paper,by decompo- sing the dual - polarized channel matrix into a matrix independent identically distributed （ i. i. d. ） with normal distribution CN （0, 1 ） and a trigonometric matrix, we reduce the computational complexity of getting the procoding vector by CSI , at the expense of a tittle performance. |
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| Keywords: | dual - polarized channel MIMO CSI precoding |
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