计算机与数字工程2012，Vol.40Issue(10)：34-36,46,4.
基于叠加训练序列的MIMO-OFDM信道估计
Channel Estimation Algorithm for MIMO-OFDM System Based on Superimposed Training Sequence
彭明金 1李智1
作者信息
- 1. 四川大学电子信息学院 成都 610065
- 折叠
摘要
Abstract
For the realization of multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems coherent detection, a channel estimation algorithm for MIMO-OFDM System based on superimposed orthogonal training sequence is proposed. Estimation criteria and training patterns were given in great detail. Due to the correlation of superimposed training sequence and irrelevant between sequence and data, the channel estimation can be acquired conveniently and accurately. Through theoretical analysis and computer simulation, the proposed algorithm's performance is as good as the LS algorithm without matrix inversion, making the minimum mean square error reaches a minimum. Besides, by superposition of training sequences, there is no loss of bandwidth.关键词
多输人多输出/正交频分复用/叠加训练序列/信道估计/最小二乘法Key words
multiple-input multiple-output/ orthogonal frequency-division multiplexing/ superimposed training sequence/ channel estimation/ least squares(LS)分类
信息技术与安全科学引用本文复制引用
彭明金,李智..基于叠加训练序列的MIMO-OFDM信道估计[J].计算机与数字工程,2012,40(10):34-36,46,4.
