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应用科学学报 ›› 2005, Vol. 23 ›› Issue (3): 221-224.

• 论文 •    下一篇

一种有效的MIMO-OFDM系统盲信道估计算法

侯永民, 戎蒙恬   

  1. 上海交通大学电子工程系, 上海 200030
  • 收稿日期:2004-03-13 修回日期:2004-08-28 出版日期:2005-05-31 发布日期:2005-05-31
  • 作者简介:侯永民(1978-),男,山西河津人,博士生,E-mail:hyongmin@sjtu.edu.cn;戎蒙恬(1952-),男,上海人,教授,博导,E-mail:rongmt@sjtu.edu.cn

An Efficient Blind Channel Estimation Algorithm for MIMO-OFDM Systems

HOU Yong-min, RONG Meng-tian   

  1. Department of Electronical Engineering, Shanghai Jiaotong University, Shanghai 200030, China
  • Received:2004-03-13 Revised:2004-08-28 Online:2005-05-31 Published:2005-05-31

PDF

122

被引次数

41

摘要： 提出了一种新的MIMO-OFDM信道模型,该模型对于信道阶数过估计具有很强的鲁棒性,并针对该模型提出了一种基于子空间方法的盲信道估计算法.仿真结果表明在新系统模型基础上提出的算法具有收敛速度快,估计精度高的优点.

关键词: 信道估计, 多输入多输出正交频分复用, 子空间算法

Abstract: The MIMO-OFDM technique is considered as one of the promising techniques in the future wireless system.In this paper, a new MIMO-OFDM channel model that has robustness to cope with channel order overestimation is proposed.Next a subspace based blind channel estimation algorithm for the new model is also presented.Simulation results show that the new algorithm has a faster convergence rate and better estimation performance.

Key words: blind channel estimation, subspace method, MIMO-OFDM

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