Pilot-aided channel estimation for multiuser MIMO-OFDM systems

被引：0
|
作者：
Yang, QH [1 ]
Xu, SY [1 ]
Lim, JK [1 ]
Kwak, KS [1 ]
机构：
[1] Inha Univ, Telecomm Engn Lab, Grad Sch Informat Technol & Telecommun, Inchon 402751, South Korea
来源：
International Symposium on Communications and Information Technologies 2005, Vols 1 and 2, Proceedings | 2005年
关键词：
MlMO-OFDM; channel estimate; ML;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper addresses a pilot aided maximum likelihood (ML) channel estimation scheme for the uplink of multiuser multiple-input multiple-out (MIMO) orthogonal frequency division multiplexing (OFDM) systems. We derive the optimal pilot symbols and develop the optimal placement of pilot tones with respect to the mean square error (MSE) of channel estimate. In addition, a gradient algorithm for channel tracking is proposed to enhance the channel estimation.
引用
收藏
页码：972 / 975
页数：4
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