计算机工程与应用Issue(18)：210-214,5.DOI:10.3778/j.issn.1002-8331.1310-0305
基于VC的MIMO-OFDM系统的子空间半盲信道估计
Semi-blind channel estimation for MIMO-OFDM systems with VC Computer Engi-neering and Applications, 2014, 50(18):210-214
刘玉珍 1闫兴玉1
作者信息
- 1. 辽宁工程技术大学 电子与信息工程学院，辽宁 葫芦岛 125105
- 折叠
摘要
Abstract
The convergence speed of traditional subspace-based blind channel estimation is slow and has a good estimating quality only by receiving a large number of signals. Therefore, this paper proposes a VC-based blind channel estimation method in MIMO-OFDM systems. The algorithm is the combination of traditional subspace algorithm and block matrix thought. It extracts a set of vectors to reduce the number of dimensions in OFDM signals and then adds pilot sequence to form a new semi-blind channel estimation method in blind channel estimation method.By computer modeling and simulation, it can be found that newly promoted blind channel estimation method and semi-blind channel estimation method work better in channel estimation and convergence.关键词
多输入多输出系统/正交频分复用/信道估计/虚拟载波/子空间估计Key words
Multiple-Input Multiple-Output(MIMO)/Orthogonal Frequency Division Multiplexing(OFDM)/channel estimation/virtual carrier/subspace channel estimation分类
信息技术与安全科学引用本文复制引用
刘玉珍,闫兴玉..基于VC的MIMO-OFDM系统的子空间半盲信道估计[J].计算机工程与应用,2014,(18):210-214,5.
