Kalman tracking of time-varying channels in wireless MIMO-OFDM systems

被引：0
|
作者：
Schafhuber, D [1 ]
Matz, G [1 ]
Hlawatsch, F [1 ]
机构：
[1] Vienna Univ Technol, Inst Commun & Radio Frequency Engn, A-1040 Vienna, Austria
来源：
CONFERENCE RECORD OF THE THIRTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 | 2003年
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D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The performance of coherent MIMO-OFDM systems critically depends on the availability of accurate channel estimates. In wireless communications, the MIMO channel is time-varying and thus has to be tracked by the receiver. In this paper, we develop an extended Kalman filter technique for pilot symbol assisted MIMO-OFDM channel tracking. Our tracking scheme is able to exploit spatial correlations of the channel. It includes on-line estimation of the channel's state-space parameters and hence does not require any prior knowledge. Simulations using measured channels demonstrate the excellent performance of our channel tracking scheme.
引用
收藏
页码：1261 / 1265
页数：5
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