| 存在相位噪声和信道估计偏差影响的空相关MIMO-OFDM系统的性能分析 |
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| 引用本文： | 郑紫微,黄丹.存在相位噪声和信道估计偏差影响的空相关MIMO-OFDM系统的性能分析[J].大连海事大学学报(自然科学版),2007,33(4):1-4,13. |
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| 作者姓名： | 郑紫微 黄丹 |
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| 作者单位： | 大连海事大学信息工程学院，大连海事大学信息工程学院 辽宁大连116026，东南大学移动通信国家重点实验室，南京210096，辽宁大连116026 |
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| 基金项目： | 国家自然科学基金资助项目(60602021,60772119)，教育部高等学校博士学科点专项科研基金资助项目(20060151001)，大连市优秀青年科技人才基金资助项目(2006J23JH037)，移动通信国家重点实验室开放课题基金资助项目(A200606) |
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| 摘 要： | 为了进一步了解相位噪声和信道估计偏差在空相关多输入多输出正交频分复用(MIMO-OFDM)系统中的作用,对存在相位噪声和信道估计偏差影响的空相关MIMO-OFDM系统的性能进行了分析.利用模型表达了空相关MIMO-OFDM系统的复包络信号,推导了在相位噪声和信道估计偏差影响下的空相关MIMO-OFDM系统的有效数据符号的信噪比表达式,给出了在相位噪声和信道估计偏差影响下的空相关MIMO-OFDM系统的差错性能指标.研究表明,理论计算和计算机仿真的空相关MIMO-OFDM系统的差错性能结果在各种不同相位噪声和信道估计偏差影响下都比较吻合.
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| 关 键 词： | 空相关 多输入多输出 正交频分复用 相位噪声 信道估计偏差 |
| 文章编号： | 1006-7736（2007）04-0001-04 |
| 收稿时间： | 2007-09-08 |
| 修稿时间： | 2007年9月8日 |
Performance analysis on the spatially correlated MIMO-OFDM systems in the presence of phase noise and channel estimation error |
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| ZHENG Zi-wei,HUANG Dan.Performance analysis on the spatially correlated MIMO-OFDM systems in the presence of phase noise and channel estimation error[J].Journal of Dalian Maritime University,2007,33(4):1-4,13. |
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| Authors: | ZHENG Zi-wei HUANG Dan |
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| Abstract: | The performance of the spatially correlated MIMO-OFDM systems in the presence of phase noise and channel estimation error was analyzed to further understand effects of phase noise and channel estimation error on the spatially correlated multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) systems.The complex envelope of the spatially correlated MIMO-OFDM signal was expressed in model.Symbol signal to noise model was derived and a performance degradation measure was defined and expressed for the spatially correlated MIMO-OFDM systems in the presence of phase noise and channel estimation error.The results of performance degradation of the spatially correlated MIMO-OFDM systems between the theoretical calculations and computer simulations match well in the presence of phase noise and channel estimation error. |
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| Keywords: | spatially correlation multiple-input multiple-output(MIMO) orthogonal frequency division multiplexing(OFDM) phase noise channel estimation error |
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