The Truncation DCT Channel Estimation for OFDM System

摘要：

In pilot-symbol-aided channel estimation algorithms of OFDM system,transformation domain based channel estimators have excellent performance.This paper proposes a truncation DCT channeI estimation algorithm which iS bases on mirror weighted DCT channel estimation and utilizes the characteristic which compress the power to the low frequency reign by DCT.It does not only overcome aliasing effect of DFT-based channel estimation algorithms,but also reduces rudimental noise in DCT-based channel estimation algorithms.By the result of simulation,the proposed algorithms’performance in this paper is closed to MMSE estimator and much betcer to excels Other conventional transformation domain method.

关键词： mobile communication modulation and demodulation multi-path decaying channel Channel Estimation

作者: LiXiao-bai YangRui-juan ChengWei

作者单位: CTS,Air Force Radar Academy,Wuhan,430019,China

会议类型: 国内会议

会议名称: 第21届电路与系统学术年会

会议地点: 北京·天津

会议语种:英文

页码: 210-217

在线出版日期: 2008-11-28（万方平台首次上网日期，不代表论文的发表时间）