Joint Frequency Offset and Channel Estimation in Frequency Selective MIMO Correlated Fading Channels

被引：0
|
作者：
Li, Jiandong [1 ]
Dong, Wei [1 ]
Wang, Fusu [1 ]
机构：
[1] Xidian Univ, Broadband Wireless Commun Lab, Inst Informat Sci, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
来源：
2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 | 2009年
关键词：
DESIGN;
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：
In this paper, we address the problem of frequency offset and channel gains estimation for correlated multi-input multi-output (MIMO) channels. The channel is assumed to be frequency-selective and block fading with both spatial and multipath correlations. A maximum-likelihood (NIL) frequency offset (FO) estimator is proposed by using the Baysian approach and the mean and variance of the FO estimation are derived. To evaluate the performance of the FO estimator, its Cramer-Rao lower bound (CRLB) is also developed. Based on the FO estimate, we derive the linear minimum mean square error (LMMSE) channel estimator and analytically investigate the effect of frequency offset estimation error on the mean square error (MSE) performance of the channel estimator. Finally, the performances of the FO and channel estimation are evaluated by simulation results.
引用
收藏
页码：1736 / 1740
页数：5
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