DHT-based channel estimation for MIMO-OFDM systems

被引：0
|
作者：
Gai, Yibing [1 ]
Li, Hongyan [1 ]
He, Zhiqiang [1 ]
Niu, Kai [1 ]
Wu, Weiling [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Key Lab Informat Proc & Intelligent Technol, Beijing 100088, Peoples R China
来源：
2008 IEEE 67TH VEHICULAR TECHNOLOGY CONFERENCE-SPRING, VOLS 1-7 | 2008年
关键词：
channel estimation; MIMO-OFDM systems; least squares algorithm; discrete Hartley Transform; wireless communication;
D O I：
暂无
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：
Discrete Fourier Transform (DFT)-based least square (LS) channel estimation with phase shifted pilots (PSP) is a practical method in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. In this paper, a real number pilot sequence is presented to replace PSP in time-domain LS channel estimation algorithm, which can reduce computation and save memory while keeping the precision. Furthermore, using discrete Hartley Transform (DHT) in LS channel estimation algorithm, a simpler estimator is derived. The simulation results demonstrate the effectiveness of the proposed pilot sequence and the DHT-based channel estimation algorithm.
引用
收藏
页码：883 / 887
页数：5
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