| 基于EM算法的MIMO-OFDM系统半盲信道估计研究 |
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| 引用本文： | 任雁,李艳萍.基于EM算法的MIMO-OFDM系统半盲信道估计研究[J].长治学院学报,2011,28(2). |
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| 作者姓名： | 任雁 李艳萍 |
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| 作者单位： | 太原理工大学信息工程学院,山西,太原030024 |
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| 摘 要： | 文章通过对MIMO-OFDM(Multiple Input Multiple Output Orthogonal Frequency Division Mul-tiPlexing)系统及其信道估计的分析,针对MIMO-OFDM系统提出一种基于EM的半盲信道估计算法。不仅有利于减少MIMO-OFDM的系统开销,且有助于提高系统的信道估计精度,降低了计算的复杂度。
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| 关 键 词： | MIMO-OFDM EM算法 半盲信道估计 |
Semi-blind Channel Estimation for MIMO-OFDM System Based on the EM Algorithm |
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| REN Yan,LI Yan-ping.Semi-blind Channel Estimation for MIMO-OFDM System Based on the EM Algorithm[J].Journal of Changzhi University,2011,28(2). |
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| Authors: | REN Yan LI Yan-ping |
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| Institution: | REN Yan,LI Yan-ping(Information Engineering College Taiyuan University of Technology,Taiyuan Shanxi 030024) |
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| Abstract: | This paper through studying MIMO-OFDM(Multiple Input Multiple Output Orthogonal Division MultiPlexing) system and its related knowledge of channel estimation,presents a semi-blind method for channel estimation in MIMO-OFDM system.It is easier for reducing MIMO-OFDM system cost,and helps improve the accuracy of channel estimation and reduces the computational complexity. |
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| Keywords: | MIMO-OFDM Expectation Maximum algorithm semi-blind channel estimation |
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