Channel estimation for OFDM systems based on bispectrum of pilot tones in fast fading channels

被引：0
|
作者：
Li, DP [1 ]
Zhang, HL [1 ]
机构：
[1] Xidian Univ, Natl Key Lab, Integrated Serv Networks, Xian 710071, Peoples R China
来源：
2004 7TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, VOLS 1-3 | 2004年
关键词：
OFDM; channel estimation; bispectrum;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, a novel bispectrum-based channel estimation algorithm for Orthogonal Frequency Division Multiplexing (OFDM) system in fast fading channels is proposed. As the bispectrum of Gaussian noise is zero, the noisy channel estimate of pilot tones obtained from LS method can be unproved significantly by bispectrum-filtering. The proposed algorithm can accurately estimate the channel response in the presence of additive white Gaussian noise (AWGN) and intercarrier interference (ICI) without the knowledge of channel statistics. Simulation results in terms of bit error rate (BER) demonstrate the effectiveness of the proposed algorithm.
引用
收藏
页码：1649 / 1652
页数：4
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