On the Improvement of Decision-directed Channel Estimation in DVB-T2 Systems

被引：0

作者：

Chen, Chen-Ting ^{[1
]}

Chang, Min-Kuan C. ^{[1
]}

Wu, Kuo-Guan ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Grad Inst Commun Engn, Taichung, Taiwan

来源：

2013 IEEE 17TH INTERNATIONAL SYMPOSIUM ON CONSUMER ELECTRONICS (ISCE) | 2013年

关键词：

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：

The DVB-T2 standard is widely used in recent years, which is based on orthogonal frequency division multiplexing (OFDM) systems. In OFDM system, frequency-domain pilots are usually employed to perform channel estimation. To reduce the number of pilots and hence improve spectral efficiency, decision-directed channel estimation (DDCE) has been considered in the new DVB-T2 standard. In this paper we will address the noise amplification problem of DDCE in DVB-T2 systems. We propose to employ the weighted least-squares method to improve the performance of DDCE in DVB-T2 systems. Simulation results show that the proposed scheme considerably improves the mean-squared estimation errors as compared with existing algorithms in [2,3].

引用

页码：151 / 152

页数：2