An efficient channel estimation method for OFDM systems with multiple transmit antennas

Author

Zhao, Yahong ; Li, Weihua ; Wu, Weiling

Author_Institution

Beijing Univ. of Posts & Telecommun., China

Volume

2

fYear

2001

fDate

2001

Firstpage

335

Abstract

For the sake of bandwidth efficiency, one preamble pilot OFDM symbol is preferable for channel estimation of an OFDM system with two transmit antennas; a transform-domain processing method of channel estimation is proposed in this paper, which is equivalent to interpolation in the frequency domain. And a simple time-domain noise-suppression method is utilized to improve the accuracy of the channel estimation. Theoretic analysis and simulation results validate the accuracy of the channel estimation method proposed in this paper

Keywords

OFDM modulation; antenna arrays; antenna theory; estimation theory; interference suppression; multipath channels; radio networks; radiofrequency interference; transmitting antennas; OFDM systems; bandwidth efficiency; efficient channel estimation method; multiple transmit antennas; time-domain noise-suppression method; transform-domain processing method; wireless communication; Bandwidth; Channel estimation; Fading; Frequency domain analysis; Interpolation; OFDM; Rayleigh channels; Receiving antennas; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on

Conference_Location

Beijing

Print_ISBN

0-7803-7010-4

Type

conf

DOI

10.1109/ICII.2001.983600

Filename

983600