A PERFORMANCE BOUND FOR MIMO-OFDM CHANNEL ESTIMATION AND PREDICTION

被引：4
|
作者：
Larsen, Michael D. [1 ]
Swindlehurst, A. Lee [2 ]
Svantesson, Thomas [3 ]
机构：
[1] Brigham Young Univ, Provo, UT 84602 USA
[2] Univ Calif Irvine, Irvine, CA 92697 USA
[3] ArrayComm Inc, San Jose, CA 95131 USA
来源：
2008 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP | 2008年
关键词：
D O I：
10.1109/SAM.2008.4606842
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：
The performance of a mobile MIMO-OFDM system depends on the ability of the system to accurately account for the effects of the frequency-selective time-varying channel at every symbol time and at every frequency subcarrier. In this paper, a vector formulation of the Cramer-Rao bound (CRB) for biased estimators and for functions of parameters is used to find a lower bound on the estimation and prediction error of such a system. Numerical simulations demonstrate the benefits of multiple antennas for channel estimation and prediction and illustrate the impact of calibration errors on estimation performance when using parametric channel models.
引用
收藏
页码：141 / +
页数：2
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