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
收藏
页码：151 / 152
页数：2
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