Semi-blind Channel Estimation for OFDM Systems

被引：0
|
作者：
Yang, Weiwei [1 ]
Cai, Yueming [1 ]
Xun, Youyun [1 ]
机构：
[1] PLAUST, Inst Commun Engn, Nanjing 210007, Peoples R China
来源：
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年
关键词：
OFDM; semi-blind channel estimation; first-order statistics;
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：
In this paper, we propose a semi-blind channel estimation method based on first-order statistics of OFDM systems. The transmitter superimposes periodic pilot sequences on information sequences, where there is no loss in information rate but a controllable increase in transmission power. Employing the first-order statistics, it enables a closed-form channel estimation method to estimate the frequency-selective fading channel. Then, a mean square error (MSE) bound is derived to evaluate the proposed channel estimator. Computer simulations have been provided to compare the MSE performances of the proposed method with the LS estimation method based PSAM and the subspace method.
引用
收藏
页码：226 / 230
页数：5
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