| 基于LS算法的MIMO-OFDM频率同步 |
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| 引用本文： | 胡倩,颜彪,邱孟栋,王加敏. 基于LS算法的MIMO-OFDM频率同步[J]. 淮南工业学院学报, 2010, 0(4): 31-34 |
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| 作者姓名： | 胡倩 颜彪 邱孟栋 王加敏 |
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| 作者单位： | 扬州大学信息工程学院,江苏扬州225009 |
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| 摘 要： | 频率同步是MIMO-OFDM同步技术必须解决的问题之一,但是传统的基于ML算法的频率偏移估计条件要求苛刻,计算复杂,因此对CFO简单算法的探究势在必行。为此提出一种基于LS算法的频率偏移估计,并将其性能与基于ML的频率偏移估计的性能进行比较。仿真结果表明,LS算法性能等同于ML算法性能。基于LS算法的简单性和使用条件的低约束性,可使用LS算法获得和ML算法相同的频偏估计。
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| 关 键 词： | MIMO-OFDM 频率同步 ML LS |
LS-based Frequency Synchronization for MIMO-OFDM Systems |
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| HU Qian,YAN Biao,QIU Meng-dong,WANG Jia-min. LS-based Frequency Synchronization for MIMO-OFDM Systems[J]. Journal of Huainan Institute of Technology(Natural Science), 2010, 0(4): 31-34 |
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| Authors: | HU Qian YAN Biao QIU Meng-dong WANG Jia-min |
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| Affiliation: | (College of Information Engineering,Yangzhou University,Yangzhou Jiangsu 225009,China) |
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| Abstract: | One of the key issues of MIMO-OFDM synchronization is frequency synchronization.However,the condition of conventional ML-based CFO is rigorous and computation is complex.So,It is imperative to explore a new method of CFO.CFO based on least square（LS） was proposed,and LS-based CFO was compared with one of ML-based CFOs.The simulation results showed that the performance of LS is equivalent to that of ML.LS-based CFO is simple and less restrict.The simple LS method can be used to obtain the same CFO as using ML. |
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| Keywords: | MIMO-OFDM Frequency synchronization ML LS |
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