A orthogonal superimposed pilot for channel estimation in MIMO-OFDM systems

被引：5

作者：

Lu, Shan ^{[1
]}

Kang, Guixia ^{[1
]}

Zhu, Qiqu ^{[1
]}

Zhang, Ping ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Wireless Tech Innovat Inst, Beijing 100088, Peoples R China

来源：

2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2007年

关键词：

MIMO-OFDM; channel estimation; CAZAC; pilot;

D O I：

10.1109/VETECS.2007.497

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 consider superimposing pilot signals onto data signals for channel estimation in Multiple-Input Multiple-Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM) systems. This paper presents a channel estimation method, which is based on orthogonal pilot-Constant Amplitude Zero Autocorrelation Code (CAZAC) for space-time block code (STBC) OFDM system. In this system, the proposed method has low-complexity and CAZAC codes have the minimum Peak-to-Average Power Ratio (PAPR). At the same time, the superimposed pilot approach can increase bandwidth efficiency and data rate compared with other classical approaches, where pilot signals and data signals are disjoined, at nearly the same system performance by the computer simulation.

引用

页码：2409 / 2413

页数：5

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