Channel estimation for OFDM systems with ICI

Author

Liu, Siyang ; Wang, Feifei ; Zhang, Ranran ; Liu, Yuanan

Author_Institution

Beijing Univ. of Posts & Telecommun., Beijing

fYear

2008

fDate

25-27 Aug. 2008

Firstpage

998

Lastpage

1002

Abstract

In this paper, a novel channel estimator is proposed for orthogonal frequency-division multiplexing (OFDM) systems with intercarrier interference (ICI). This estimator includes two parts: the channel parameter estimation unit (CPEU) and the channel coefficient estimation unit (CCEU). In CPEU, two channel parameters, the number of channel taps and the multipath time delays, are estimated. In CCEU, the channel coefficients are estimated by utilizing the over-sampling basis expansion model (OBEM) and the channel parameters provided by CPEU. Simulation results are given to show the effectiveness of the proposed method.

Keywords

OFDM modulation; channel estimation; delays; intercarrier interference; multipath channels; parameter estimation; ICI; OFDM systems; channel coefficient estimation unit; channel parameter estimation unit; intercarrier interference; multipath time delays; orthogonal frequency-division multiplexing systems; over-sampling basis expansion model; Channel estimation; Delay effects; Delay estimation; Fading; Frequency division multiplexing; Frequency estimation; Interference; OFDM; Parameter estimation; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-2373-6

Electronic_ISBN

978-1-4244-2374-3

Type

conf

DOI

10.1109/CHINACOM.2008.4685193

Filename

4685193