Channel estimation with timing offset based on PSD & LS estimation for wireless OFDM systems

Author

Qin, Shengping ; Liu, Peide ; Zhang, Xin ; Zheng, Laibo ; Wang, Deqiang

Author_Institution

Shandong Economic Univ., Shandong

fYear

2007

fDate

Nov. 28 2007-Dec. 1 2007

Firstpage

248

Lastpage

251

Abstract

Orthogonal frequency division multiplexing (OFDM) is the focus of wireless communication for its high rate transmission. In this paper, a novel channel estimation algorithm for the wireless OFDM Systems with timing offset based on the PSD and LS estimation is presented. The results of simulation prove the parameters of channel estimation with timing offset based on the PSD & LS estimation is more precise than the LS estimation, and the performance of OFDM system under the condition of channel equalization based on the PSD & LS channel estimation is better than that of the LS channel estimation.

Keywords

OFDM modulation; channel estimation; equalisers; least squares approximations; radiocommunication; wireless channels; LS estimation; PSD estimation; channel equalization; channel estimation; orthogonal frequency division multiplexing; timing offset; wireless communication; Channel estimation; Frequency estimation; Frequency synchronization; Intersymbol interference; Maximum likelihood estimation; Multipath channels; OFDM; Signal processing; Timing; Wireless communication; OFDM; PSD; channel estimation; timing offset;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-1447-5

Electronic_ISBN

978-1-4244-1447-5

Type

conf

DOI

10.1109/ISPACS.2007.4445870

Filename

4445870