Joint Carrier Frequency Offset and Channel Estimation for MIMO-OFDM Systems Using Extended H∞ Filter

被引：6

作者：

Yu, Yihua ^{[1
]}

Liang, Yuan ^{[2
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

[2] Beijing Inst Technol, Coll Social Sci, Beijing 100081, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2012年 / 16卷 / 04期

关键词：

Carrier frequency offset (CFO); channel estimation; extended H-infinity filter; multiple-input multiple-output (MIMO); orthogonal frequency-division multiplexing (OFDM);

D O I：

10.1109/LCOMM.2012.021612.112610

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We address the problem of joint carrier frequency offset (CFO) and channel estimation for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems over time-varying channels. The CFOs between different pairs of transmit and receive antennas are considered to be different. The method is derived based on the extended H-infinity filter (EHF). Compared to the conventional extended Kalman filter (EKF)-based method, the EHF-based method does not require any knowledge of the noise distributions, so it is more flexible and robust to the unknown disturbances. Simulation results are provided to illustrate the performance of this method.

引用

页码：476 / 478

页数：3

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