Decision Directed Technique for Channel Estimation in OFDM Mobile Systems

Author

Chen, Hui ; Chen, Xiaoguang

Author_Institution

Dept. of Commun. Sci. & Eng., Fudan Univ., Shanghai

fYear

2006

fDate

22-24 Sept. 2006

Firstpage

1

Lastpage

4

Abstract

A channel estimation method based on decision directed technique and pilot tracking for OFDM WLANS with mobile terminals is proposed in this paper. With the help of the decision symbols, the statistical characteristics of the transmitted data via the fading channel are applied for the channel estimation. And some reliable estimation results combined with pilot are used to track the change of the fading channel. The simulation results show that the proposed method has better performance than the channel estimation method based on training sequence or pilots

Keywords

OFDM modulation; channel estimation; fading channels; mobile radio; statistical analysis; telecommunication terminals; wireless LAN; OFDM mobile systems; WLAN; channel estimation method; decision directed technique; fading channels; mobile terminals; statistical characteristics; Additive white noise; Bandwidth; Channel estimation; Digital audio broadcasting; Digital video broadcasting; Fading; Frequency response; Mobile communication; OFDM; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on

Conference_Location

Wuhan

Print_ISBN

1-4244-0517-3

Type

conf

DOI

10.1109/WiCOM.2006.177

Filename

4149354