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MIMO-OFDM系统的一种改进型LS信道估计算法

A Modified LS Channel Estimation Method for MIMO-OFDM System
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摘要 基于多输入多输出正交频分复用(MIMO-OFDM)系统,研究了LS信道估计算法,提出了一种训练序列和块状导频联合LS信道估计算法,给出了权值的计算公式。理论推导和计算机仿真表明,这种改进型的LS信道估计方法提高了LS信道估计的误码率性能,并具有较高的灵活性和较低的复杂度增长。 LS channel estimation method based on MIMO -OFDM system is studied. A training -based and pilot - aided joint LS channel estimation method is presented, and the formula for calculating optimal weight coefficients is derived. Computer simulation shows that the modified LS channel estimation method improves the BER performance with high flexibility and little complexity increase.
作者 杨博 罗汉文 佘峰
机构地区 上海交通大学电子工程系
出处 《电讯技术》 2007年第3期24-26,共3页 Telecommunication Engineering
基金 国家自然科学基金资助项目(60572157)
关键词 信道估计 多输入多输出 正交频分复用 最小平方 联合信道估计 channel estimation MIMO OFDM LS joint channel estimation
分类号 TN948.14 [电子电信—信号与信息处理]
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参考文献6

  • 1Mehrzad Biguesh,Alex B.Gershman,Training based MIMO channel estimation:a study of estimator tradeoffs and optimal training signals[J].IEEE Trans on Signal Processing,2006,54(3):884-893.
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二级参考文献7

  • 1Fredericksen F B,Prasad R.An overview of OFDM and related techniques towards development of future wireless multimedia communications [EB/OL].http://ieeexplore.ieee.org/iel5/7998/22120/01030107.pdf,2002-08-12/ 2004-07-10.
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  • 7C802.20-03/48,Channel Models and Performance Implementations for OFDM-based MBWA [S].
电讯技术
2007年 第3期

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