Time-Domain MMSE Channel Estimation Based on Subspace Tracking for OFDM Systems

被引：0
|
作者：
Hou, Xiaolin [1 ]
Zhang, Zhan [1 ]
Kayama, Hidetoshi [1 ]
机构：
[1] DoCoMo Beijing Commun Labs Co Ltd, Innovat Radio Transmiss Lab, Beijing, Peoples R China
来源：
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年
关键词：
OFDM; channel estimation; time-domain; MMSE; subspace tracking; MIMO;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Channel state information (CSI) is critical for the performance of orthogonal frequency division multiplexing (OFDM) systems. In this paper, we propose time-domain minimum mean square error (MMSE) channel estimation based on subspace tracking for OFDM systems, which can increase the channel estimation accuracy as well as lower the computational complexity. Furthermore, it requires little prior channel statistical information and can track the time-varying wireless channel effectively. With proper training sequences design on transmitter antennas, it can be easily applied to multiple inputs multiple outputs (MIMO) OFDM systems. Computer simulations demonstrate its good performance.
引用
收藏
页码：1565 / 1569
页数：5
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