Iterative pilot symbol assisted channel estimation in turbo OFDM system [mobile wireless channels]

Author

Yang, Haifen ; Xiong, Yong ; Bai, Wei ; Lan, Hong ; Bu, Zhiyong

Author_Institution

Shanghai Res. Center for Wireless Commun., China

Volume

1

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

465

Abstract

OFDM is a promising technique over mobile wireless channels. Diversity and iterative estimation play an important role in improving the performance of OFDM systems. In this article, we develop a turbo OFDM system which employs an interleaver at the transmitter to permute information and introduce additional temporal frequency domain diversity. At the receiver, a combination of channel estimation of the MMSE and linear interpolation is proposed to provide the channel parameters. Computer simulation results are shown and prove the system to be effective.

Keywords

OFDM modulation; channel estimation; diversity reception; interpolation; iterative methods; least mean squares methods; mobile radio; MMSE; iterative channel estimation; linear interpolation; mobile wireless channels; pilot symbol assisted channel estimation; receiver temporal frequency domain diversity; transmitter interleaver; turbo OFDM system; Channel estimation; Computer simulation; Interpolation; Iterative methods; OFDM; Parameter estimation; Receiving antennas; Transmitters; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1400049

Filename

1400049