MIMO-OFDM Channel Estimation Using Golay Complementary Sequences

被引：7

作者：

Qureshi, Tariq ^{[1
]}

Zoltowski, Michael ^{[1
]}

Calderbank, Robert ^{[2
]}

机构：

[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ USA

来源：

2009 INTERNATIONAL WAVEFORM DIVERSITY AND DESIGN CONFERENCE | 2009年

关键词：

SYSTEMS; CODES;

D O I：

10.1109/WDDC.2009.4800355

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：

We present a pilot-assisted method for estimating the frequency selective channel in a MIMO-OFDM (Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing) system. The pilot sequence is designed using the DFT (Discrete Fourier Transform) of the Golay complementary sequences. Novel exploitation of the perfect autocorrelation property of Golay complementary sequences, in conjunction with OSTBC (Orthogonal Space Time Block Code) based pilot waveform scheduling across multiple OFDM frames, facilitates simple separation of the channel mixtures at the receive antennas. The DFT length used to transform the complementary sequence into the frequency domain is shown to be a key critical parameter for correctly estimating the channel. This channel estimation scheme is then extended to antenna arrays of arbitrary sizes.

引用

页码：253 / +

页数：2

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